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diff --git a/doc/dispread.html b/doc/dispread.html
index 071fa7d..a30ab25 100644
--- a/doc/dispread.html
+++ b/doc/dispread.html
@@ -1,25 +1,25 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
- <head>
- <title>dispread</title>
- <meta http-equiv="content-type" content="text/html;
- charset=ISO-8859-1">
- <meta name="author" content="Graeme Gill">
- </head>
- <body>
- <h2><b>spectro/dispread</b>&nbsp;</h2>
- <h3>Summary</h3>
- Display test patches on a monitor, read the colorimetric value
- result with the colorimeter, and create the chart readings file. The
- type of instrument is determined by the communication port selected.
- Emission and display measurement instruments are supported.<br>
- <br>
- If you want to read a display manually rather than automatically,
- see <a href="chartread.html">chartread</a> and the <a
- href="chartread.html#d">-d</a> option.<br>
- <h3>Usage</h3>
- <small style="font-family: monospace;">dispread [-options]<i>
- inoutfile</i><br>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+ <head>
+ <title>dispread</title>
+ <meta http-equiv="content-type" content="text/html;
+ charset=windows-1252">
+ <meta name="author" content="Graeme Gill">
+ </head>
+ <body>
+ <h2><b>spectro/dispread</b>&nbsp;</h2>
+ <h3>Summary</h3>
+ Display test patches on a monitor, read the colorimetric value
+ result with the colorimeter, and create the chart readings file. The
+ type of instrument is determined by the communication port selected.
+ Emission and display measurement instruments are supported.<br>
+ <br>
+ If you want to read a display manually rather than automatically,
+ see <a href="chartread.html">chartread</a> and the <a
+ href="chartread.html#d">-d</a> option.<br>
+ <h3>Usage</h3>
+ <small style="font-family: monospace;">dispread [-options]<i>
+ inoutfile</i><br>
&nbsp;<a href="#v">-v</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -43,16 +43,24 @@
- &nbsp;&nbsp;&nbsp;&nbsp; Verbose mode<br>
- &nbsp;</small><font size="-1"><a style="font-family: monospace;"
- href="#display">-display displayname</a><span
- style="font-family: monospace;"> [X11 only] Choose X11 display
- name<br>
- </span></font><font size="-1"><span style="font-family:
- monospace;">&nbsp;<a href="#dnm">-d n[,m]</a>
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- [X11 only]Choose the display from the following list (default
- 1),<br>
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp; Verbose mode<br>
+ &nbsp;</small><font size="-1"><a style="font-family: monospace;"
+ href="#display">-display displayname</a><span
+ style="font-family: monospace;"> [X11 only] Choose X11 display
+ name<br>
+ </span></font><font size="-1"><span style="font-family:
+ monospace;">&nbsp;<a href="#dnm">-d n[,m]</a>
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+ [X11 only]Choose the display from the following list (default
+ 1),<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
and
optionally
@@ -83,8 +91,16 @@ m
- for VideoLUT access.</span></font><br>
- <font size="-1"><span style="font-family: monospace;">&nbsp;<a
+
+
+
+
+
+
+
+
+ for VideoLUT access.</span></font><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;<a
href="#d">-d n</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Choose
the
@@ -115,7 +131,15 @@ list
- (default 1)</span></font><small style="font-family: monospace;"><br>
+
+
+
+
+
+
+
+
+ (default 1)</span></font><small style="font-family: monospace;"><br>
</small><span style="font-family: monospace;">&nbsp;<a href="#dweb">-dweb[:port]</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -141,8 +165,16 @@ list
- Display via a web server at port (default 8080)</span><br>
- <span style="font-family: monospace;">&nbsp;<a href="#dmadvr">-dmadvr</a>
+
+
+
+
+
+
+
+
+ Display via a web server at port (default 8080)</span><br>
+ <span style="font-family: monospace;">&nbsp;<a href="#dmadvr">-dmadvr</a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -155,13 +187,25 @@ list
- [MSWin] Display via MadVR Video Renderer</span><br>
- <small style="font-family: monospace;"> <span style="font-family:
- monospace;">&nbsp;</span><a style="font-family: monospace;"
- href="#c">-c listno</a><span style="font-family: monospace;">
- &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Set
- communication port from the following list (default 1)<br>
- </span></small><font size="-1"><span style="font-family:
+
+
+
+
+
+
+
+
+ [MSWin] Display via MadVR Video Renderer</span><br>
+ <tt>&nbsp;</tt><tt><a href="#dcc">-dcc[:n]</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+ </tt><tt>Display via n'th ChromeCast (default 1, ? for list)</tt><br>
+ <small style="font-family: monospace;"> <span style="font-family:
+ monospace;">&nbsp;</span><a style="font-family: monospace;"
+ href="#c">-c listno</a><span style="font-family: monospace;">
+ &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Set
+ communication port from the following list (default 1)<br>
+ </span></small><font size="-1"><span style="font-family:
monospace;">&nbsp;<a href="#p">-p</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -185,9 +229,17 @@ list
- Use telephoto mode (ie. for a projector) (if available)</span></font><br>
- &nbsp; <font size="-1"><span style="font-family: monospace;"><a
- href="#y">-y X</a>
+
+
+
+
+
+
+
+
+ Use telephoto mode (ie. for a projector) (if available)</span></font><br>
+ &nbsp; <font size="-1"><span style="font-family: monospace;"><a
+ href="#y">-y X</a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Display
@@ -213,9 +265,17 @@ Display
- type - instrument specific list to choose from.</span></font><br>
- <small style="font-family: monospace;">&nbsp;<span
- style="text-decoration: underline;">-</span><a href="#k">k
+
+
+
+
+
+
+
+
+ type - instrument specific list to choose from.</span></font><br>
+ <small style="font-family: monospace;">&nbsp;<span
+ style="text-decoration: underline;">-</span><a href="#k">k
file.cal</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -239,9 +299,17 @@ Display
- Load calibration file into display while reading<br>
- </small><small style="font-family: monospace;">&nbsp;<span
- style="text-decoration: underline;">-</span><a href="#K">K
+
+
+
+
+
+
+
+
+ Load calibration file into display while reading<br>
+ </small><small style="font-family: monospace;">&nbsp;<span
+ style="text-decoration: underline;">-</span><a href="#K">K
file.cal</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Apply
@@ -266,12 +334,28 @@ Apply
- calibration file to test values while reading</small><br>
+
+
+
+
+
+
+
+
+ calibration file to test values while reading</small><br>
<tt>&nbsp;<a href="#V">-V</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- [MSWin] Enable MadVR color management (3dLut)</tt><br>
+
+
+
+
+
+
+
+
+ [MSWin] Enable MadVR color management (3dLut)</tt><br>
<small style="font-family: monospace;">&nbsp;<a href="#s">-s</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -295,11 +379,19 @@ Apply
- &nbsp;&nbsp;&nbsp;&nbsp; Save spectral information (default don't
- save)<br>
- </small><font style="font-family: monospace;" size="-1">&nbsp;<a
- href="#P">-P ho,vo,ss[,vs]</a>&nbsp;&nbsp;&nbsp;&nbsp; Position
- test window and scale it<br>
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp; Save spectral information (default don't
+ save)<br>
+ </small><font style="font-family: monospace;" size="-1">&nbsp;<a
+ href="#P">-P ho,vo,ss[,vs]</a>&nbsp;&nbsp;&nbsp;&nbsp; Position
+ test window and scale it<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ho,vi:
0.0
@@ -330,7 +422,15 @@ center,
- 1.0 = right/bottom etc.<br>
+
+
+
+
+
+
+
+
+ 1.0 = right/bottom etc.<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
ss:
0.5
@@ -361,7 +461,15 @@ normal,
- 2.0 = double etc.<br>
+
+
+
+
+
+
+
+
+ 2.0 = double etc.<br>
</font><font size="-1"><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -378,9 +486,17 @@ normal,
- ss,vs: = optional horizontal, vertical scale.</span></font><br>
- <font style="font-family: monospace;" size="-1"> &nbsp;</font><font
- size="-1"><span style="font-family: monospace;"><a href="#F">-F</a>
+
+
+
+
+
+
+
+
+ ss,vs: = optional horizontal, vertical scale.</span></font><br>
+ <font style="font-family: monospace;" size="-1"> &nbsp;</font><font
+ size="-1"><span style="font-family: monospace;"><a href="#F">-F</a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -404,9 +520,17 @@ normal,
- Fill whole screen with black background</span></font><br>
- <font size="-1"><span style="font-family: monospace;">&nbsp;</span></font><font
- size="-1"><span style="font-family: monospace;"><a href="#E">-E</a>
+
+
+
+
+
+
+
+
+ Fill whole screen with black background</span></font><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;</span></font><font
+ size="-1"><span style="font-family: monospace;"><a href="#E">-E</a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -415,10 +539,52 @@ normal,
- </span></font><small><span style="font-family: monospace;">Video
- encode output as (16-235)/255 "TV" levels</span></small><br
- style="font-family: monospace;">
- <small style="font-family: monospace;">&nbsp;<span
+
+
+
+
+
+
+
+
+ </span></font><small><span style="font-family: monospace;">Video
+ encode output as (16-235)/255 "TV" levels</span></small><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;</span></font><font
+ size="-1"><span style="font-family: monospace;"><a href="#Z">-Z
+ nbits</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ </span></font><small><span style="font-family: monospace;">Quantize
+test
+values
+to
+fit
+
+
+
+
+
+
+
+
+
+
+
+ in nbits</span></small><br style="font-family: monospace;">
+ <small style="font-family: monospace;">&nbsp;<span
style="text-decoration: underline;"></span><a href="#n">-n</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;
[X11
@@ -449,8 +615,16 @@ redirect
- on test window<br>
- </small><small style="font-family: monospace;">&nbsp;<a href="#J">-J</a>
+
+
+
+
+
+
+
+
+ on test window<br>
+ </small><small style="font-family: monospace;">&nbsp;<a href="#J">-J</a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -474,8 +648,16 @@ redirect
- &nbsp;&nbsp;&nbsp;&nbsp; Run calibration first</small><br>
- <font size="-1"><span style="font-family: monospace;">&nbsp;<a
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp; Run calibration first</small><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;<a
href="#N">-N</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -499,16 +681,24 @@ redirect
- Disable initial calibration of instrument if possible<br>
- </span></font><font size="-1"><span style="font-family:
- monospace;">&nbsp;</span><a style="font-family: monospace;"
- href="#H">-H</a><span style="font-family: monospace;">
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp; Use high resolution spectrum mode (if
- available)</span></font><font size="-1"><span
- style="font-family: monospace;"></span><span style="font-family:
- monospace;"><br>
- &nbsp;<a href="#w">-w</a>
+
+
+
+
+
+
+
+
+ Disable initial calibration of instrument if possible<br>
+ </span></font><font size="-1"><span style="font-family:
+ monospace;">&nbsp;</span><a style="font-family: monospace;"
+ href="#H">-H</a><span style="font-family: monospace;">
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+ &nbsp;&nbsp;&nbsp;&nbsp; Use high resolution spectrum mode (if
+ available)</span></font><font size="-1"><span
+ style="font-family: monospace;"></span><span style="font-family:
+ monospace;"><br>
+ &nbsp;<a href="#w">-w</a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Disable
normalisation
@@ -539,8 +729,16 @@ Y
- 100</span></font><small><span style="font-family: monospace;"></span></small><br>
- &nbsp; <font size="-1"><span style="font-family: monospace;"><a
+
+
+
+
+
+
+
+
+ 100</span></font><small><span style="font-family: monospace;"></span></small><br>
+ &nbsp; <font size="-1"><span style="font-family: monospace;"><a
href="#X1">-X file.ccmx</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -564,8 +762,16 @@ Y
- Apply Colorimeter Correction Matrix</span></font><br>
- <span style="font-family: monospace;">&nbsp;<a href="#X2">-X
+
+
+
+
+
+
+
+
+ Apply Colorimeter Correction Matrix</span></font><br>
+ <span style="font-family: monospace;">&nbsp;<a href="#X2">-X
file.ccss</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Use
Colorimeter
@@ -592,13 +798,21 @@ Calibration
- Spectral Samples for calibration</span><font size="-1"><span
- style="font-family: monospace;"><br>
- </span></font><small><span style="font-family: monospace;">&nbsp;</span><a
- style="font-family: monospace;" href="#Q">-Q <i>observ</i></a><span
- style="font-family: monospace;">&nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;&nbsp; Choose CIE Observer for spectrometer or CCSS
- colorimeter data:</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+ Spectral Samples for calibration</span><font size="-1"><span
+ style="font-family: monospace;"><br>
+ </span></font><small><span style="font-family: monospace;">&nbsp;</span><a
+ style="font-family: monospace;" href="#Q">-Q <i>observ</i></a><span
+ style="font-family: monospace;">&nbsp; &nbsp; &nbsp; &nbsp;
+ &nbsp;&nbsp;&nbsp; Choose CIE Observer for spectrometer or CCSS
+ colorimeter data:</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -622,11 +836,19 @@ Calibration
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1931_2 </span></small><small><span
- style="font-family: monospace;">(def.)</span></small><small><span
- style="font-family: monospace;">, 1964_10, S&amp;B 1955_2, shaw,
- J&amp;V 1978_2, 1964_10c</span></small><br>
- <small><span style="font-family: monospace;">&nbsp;<a
+
+
+
+
+
+
+
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1931_2 </span></small><small><span
+ style="font-family: monospace;">(def.)</span></small><small><span
+ style="font-family: monospace;">, 1964_10, S&amp;B 1955_2, shaw,
+ J&amp;V 1978_2, 1964_10c</span></small><br>
+ <small><span style="font-family: monospace;">&nbsp;<a
href="dispread.html#I">-I b|w</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Drift
compensation,
@@ -657,14 +879,38 @@ Both:
- -Ibw</span></small><br>
+
+
+
+
+
+
+
+
+ -Ibw</span></small><br>
<small><span style="font-family: monospace;"><tt>&nbsp;<a href="#YR">-Y
+
+
+
+
+
+
+
+
R:<i>rate</i></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Override measured refresh rate with rate Hz<br>
- </tt>&nbsp;</span></small><font size="-1"><span
- style="font-family: monospace;"></span><a style=" font-family:
- monospace;" href="#YA">-<font size="-1">Y</font> A</a><span
- style="font-family: monospace;">
+
+
+
+
+
+
+
+
+ Override measured refresh rate with rate Hz<br>
+ </tt>&nbsp;</span></small><font size="-1"><span
+ style="font-family: monospace;"></span><a style=" font-family:
+ monospace;" href="#YA">-<font size="-1">Y</font> A</a><span
+ style="font-family: monospace;">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -679,25 +925,33 @@ Both:
- Use non-adaptive integration time mode (if available).</span></font><br>
- <font size="-1"><span style="font-family: monospace;">&nbsp;</span><a
- style=" font-family: monospace;" href="#Yp">-<font size="-1">Y</font>
- <font size="-1">p</font></a><span style="font-family:
- monospace;">
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp; Don't wait for the instrument to be placed on
- the display</span></font><br>
- <font size="-1"><span style="font-family: monospace;">&nbsp;</span><a
- style="font-family: monospace;" href="#C">-C "command"</a><span
- style="font-family: monospace;">
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Invoke shell
- "command" each time a color is set<br>
- </span></font><font size="-1"><span style="font-family:
- monospace;">&nbsp;</span><a style="font-family: monospace;"
- href="#M">-M "command"</a><span style="font-family: monospace;">
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Invoke shell
- "command" each time a color is measured</span></font><br>
- <font size="-1"><span style="font-family: monospace;">&nbsp;<a
+
+
+
+
+
+
+
+
+ Use non-adaptive integration time mode (if available).</span></font><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;</span><a
+ style=" font-family: monospace;" href="#Yp">-<font size="-1">Y</font>
+ <font size="-1">p</font></a><span style="font-family:
+ monospace;">
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+ &nbsp;&nbsp;&nbsp; Don't wait for the instrument to be placed on
+ the display</span></font><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;</span><a
+ style="font-family: monospace;" href="#C">-C "command"</a><span
+ style="font-family: monospace;">
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Invoke shell
+ "command" each time a color is set<br>
+ </span></font><font size="-1"><span style="font-family:
+ monospace;">&nbsp;</span><a style="font-family: monospace;"
+ href="#M">-M "command"</a><span style="font-family: monospace;">
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Invoke shell
+ "command" each time a color is measured</span></font><br>
+ <font size="-1"><span style="font-family: monospace;">&nbsp;<a
href="#W">-W n|h|x</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Override
serial
@@ -728,10 +982,18 @@ n
- none, h = HW, x = Xon/Xoff</span></font><br>
- <small style="font-family: monospace;">&nbsp;<a href="#D">-D [level]</a>
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Print debug
- diagnostics to stderr</small><br>
+
+
+
+
+
+
+
+
+ none, h = HW, x = Xon/Xoff</span></font><br>
+ <small style="font-family: monospace;">&nbsp;<a href="#D">-D [level]</a>
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Print debug
+ diagnostics to stderr</small><br>
<small style="font-family: monospace;">&nbsp;<a href="#p1"><i>inoutfile</i></a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -755,72 +1017,80 @@ n
- Base name for input[<a href="File_Formats.html#.ti1">.ti1</a>]/output[<a
- href="File_Formats.html#.ti3">.ti3</a>] file.<br>
- </small> <br>
- <b>Examples</b><br>
- <br>
- dispread -c1 -i92 mycrt<br>
- <h3>Comments<br>
- </h3>
- This is the tool for exercising a display, in order to measure its
- color characteristics. The device test colors are defined by the
- outfile.ti1 file, while the resulting device+colorimetric and
- optional spectral readings are stored in the outfile.ti3 file.
- Display calibration curves can be applied during the measurements,
- and the curves included in the resulting .ti3 data file using the <span
- style="font-weight: bold;">-k</span>flag. See <a
- href="dispcal.html">dispcal</a> for information on how&nbsp; to
- calibrate the display before profiling it. For best results, you
- should run this against a neutral grey desktop background, and avoid
- having any bright images or windows on the screen at the time you
- run it.<br>
- <br>
- <a name="v"></a> The <b>-v</b> flag reports progress information.<br>
- <br>
- <a name="display"></a><span style="font-weight: bold;">-display</span>:
- When running on a UNIX based system that used the X11 Windowing
- System, <b>dispread</b> will by default use the $DISPLAY
- environment variable to determine which display and screen to read
- from. This can be overridden by supplying an X11 display name to the
- <span style="font-weight: bold;">-display</span> option. Note that
- if Xinerama is active, you can't select the screen using $DISPLAY or
- -display, you have to select it using the <span style="font-weight:
- bold;">-d</span> parameter.<br>
- <br>
- <a name="d"></a> <span style="font-weight: bold;">-d</span>: By
- default the main display will be the location of the test window. If
- the system has more than one display or screen, an alternate
- display/screen can be selected with the <span style="font-weight:
- bold;">-d</span> parameter. If you invoke <span
- style="font-weight: bold;">dispread</span> so as to display the
- usage information (i.e. "dispread -?" or "dispread --"), then the
- discovered displays/screens will be listed. Multiple displays may
- not be listed, if they appear as a single display to the operating
- system (ie. the multi-display support is hidden in the video card
- driver). On UNIX based system that used the X11 Windowing System,
- the <span style="font-weight: bold;">-d</span> parameter will
- override the screen specified by the $DISPLAY or <span
- style="font-weight: bold;">-display</span> parameter.<br>
- <br>
- On X11 the inability to access VideoLUTs could be because you are
- trying to access a remote display, and the remote display doesn't
- support the XF86VidMode extension, or perhaps you are running
- multiple monitors using NVidia TwinView, or MergedFB, and trying to
- access anything other than the primary monitor. TwinView and
- MergedFB don't properly support the XF86VidMode extension for
- multiple displays. You can use <a href="dispwin.html#r">dispwin -r</a>
- to test whether the VideoLUTs are accessible for a particular
- display. See also below, on how to select a different display for
- VideoLUT access. Also note that dispcal will fail if the Visual
- depth doesn't match the VideoLUT depth. Typically the VideoLUTs have
- 256 entries per color component, so the Visual generally needs to be
- 24 bits, 8 bits per color component.<br>
- <br>
- <a name="dnm"></a>Because of the difficulty cause by TwinView and
- MergedFB in X11 based systems, you can optionally specify a separate
- display number after the display that is going to be used to present
- test patches, for accessing the VideoLUT hardware. This must be
+
+
+
+
+
+
+
+
+ Base name for input[<a href="File_Formats.html#.ti1">.ti1</a>]/output[<a
+ href="File_Formats.html#.ti3">.ti3</a>] file.<br>
+ </small> <br>
+ <b>Examples</b><br>
+ <br>
+ dispread -c1 -i92 mycrt<br>
+ <h3>Comments<br>
+ </h3>
+ This is the tool for exercising a display, in order to measure its
+ color characteristics. The device test colors are defined by the
+ outfile.ti1 file, while the resulting device+colorimetric and
+ optional spectral readings are stored in the outfile.ti3 file.
+ Display calibration curves can be applied during the measurements,
+ and the curves included in the resulting .ti3 data file using the <span
+ style="font-weight: bold;">-k</span>flag. See <a
+ href="dispcal.html">dispcal</a> for information on how&nbsp; to
+ calibrate the display before profiling it. For best results, you
+ should run this against a neutral grey desktop background, and avoid
+ having any bright images or windows on the screen at the time you
+ run it.<br>
+ <br>
+ <a name="v"></a> The <b>-v</b> flag reports progress information.<br>
+ <br>
+ <a name="display"></a><span style="font-weight: bold;">-display</span>:
+ When running on a UNIX based system that used the X11 Windowing
+ System, <b>dispread</b> will by default use the $DISPLAY
+ environment variable to determine which display and screen to read
+ from. This can be overridden by supplying an X11 display name to the
+ <span style="font-weight: bold;">-display</span> option. Note that
+ if Xinerama is active, you can't select the screen using $DISPLAY or
+ -display, you have to select it using the <span style="font-weight:
+ bold;">-d</span> parameter.<br>
+ <br>
+ <a name="d"></a> <span style="font-weight: bold;">-d</span>: By
+ default the main display will be the location of the test window. If
+ the system has more than one display or screen, an alternate
+ display/screen can be selected with the <span style="font-weight:
+ bold;">-d</span> parameter. If you invoke <span
+ style="font-weight: bold;">dispread</span> so as to display the
+ usage information (i.e. "dispread -?" or "dispread --"), then the
+ discovered displays/screens will be listed. Multiple displays may
+ not be listed, if they appear as a single display to the operating
+ system (ie. the multi-display support is hidden in the video card
+ driver). On UNIX based system that used the X11 Windowing System,
+ the <span style="font-weight: bold;">-d</span> parameter will
+ override the screen specified by the $DISPLAY or <span
+ style="font-weight: bold;">-display</span> parameter.<br>
+ <br>
+ On X11 the inability to access VideoLUTs could be because you are
+ trying to access a remote display, and the remote display doesn't
+ support the XF86VidMode extension, or perhaps you are running
+ multiple monitors using NVidia TwinView, or MergedFB, and trying to
+ access anything other than the primary monitor. TwinView and
+ MergedFB don't properly support the XF86VidMode extension for
+ multiple displays. You can use <a href="dispwin.html#r">dispwin -r</a>
+ to test whether the VideoLUTs are accessible for a particular
+ display. See also below, on how to select a different display for
+ VideoLUT access. Also note that dispcal will fail if the Visual
+ depth doesn't match the VideoLUT depth. Typically the VideoLUTs have
+ 256 entries per color component, so the Visual generally needs to be
+ 24 bits, 8 bits per color component.<br>
+ <br>
+ <a name="dnm"></a>Because of the difficulty cause by TwinView and
+ MergedFB in X11 based systems, you can optionally specify a separate
+ display number after the display that is going to be used to present
+ test patches, for accessing the VideoLUT hardware. This must be
specified as a single string, e.g. <span style="font-weight: bold;">-d
@@ -844,240 +1114,280 @@ n
- 1,2</span> . Some experimentation may be needed using <a
- href="dispwin.html">dispwin</a> on such systems, to discover what
- screen has access to the VideoLUT hardware, and which screens the
- test patches appear on. You may be able to calibrate one screen, and
- then share the calibration with another screen. Profiling can be
- done independently to calibration.<br>
- <br>
- <a name="dweb"></a><span style="font-weight: bold;">-dweb</span> or
- <span style="font-weight: bold;">-dweb:port</span> starts a
- standalone web server on your machine, which then allows a local or
- remote web browser to display the the color test patches. By default
- port <span style="font-weight: bold;">8080</span> is used, but this
- can be overridden by appending a <span style="font-weight: bold;">:</span>
- and the port number i.e. <span style="font-weight: bold;">-dweb:8001</span>.
- The URL will be <span style="font-weight: bold;">http://</span>
- then name of the machine or its I.P. address followed by a colon and
- the port number - e.g something like <span style="font-weight:
- bold;">http://192.168.0.1:8080</span>. If you use the verbose
- option (<span style="font-weight: bold;">-v</span>) then a likely
- URL will be printed once the server is started, or you could run <span
- style="font-weight: bold;">ipconfig</span> (MSWin) or <span
- style="font-weight: bold;">/sbin/ifconfig</span> (Linux or OS X)
- and identify an internet address for your machine that way. <b>
- JavaScript</b> needs to be enabled in your web browser for this to
- work.<br>
- <br>
- Note that if you use this method of displaying test patches, that
- there is no access to the display VideoLUTs and that the colors will
- be displayed with 8 bit per component precision, and any
- screen-saver or power-saver will not be disabled. You will also be
- at the mercy of any color management applied by the web browser, and
- may have to carefully review and configure such color management.
- See the <a href="dispcal.html#o">-o</a> flag for an explanation of
- the implications of having no access to the VideoLUTs.<br>
- <br>
- <a name="dmadvr"></a><span style="font-weight: bold;">-dmadvr</span>
- [MSWin only] causes test patches to be displayed using the MadVR
- video renderer. Note that you may have to start the video playback
- software and load a video clip in pause for this to work. MadVR
- rendering does not need or support VideoLUT access, so the <a
- href="#K">-K</a> option should be used to read calibrated values.
- Be aware that the state of the Graphics Card VideoLUTs may affect
- the results, and therefore may have to be set appropriately using
- dispwin. By default the test patch colors will <u>not</u> be
- processed by the MadVR 3dLut (see the -<a href="#V">V</a> flag).<br>
- <br>
- <a name="c"></a> <span style="font-weight: bold;">-c</span>: The
- instrument is assumed to communicate through a USB or serial
- communication port, and the port can be selected with the <b>-c</b>
- option, if the instrument is not connected to the first port. If you
- invoke <span style="font-weight: bold;">dispread</span> so as to
- display the usage information (i.e. "dispread -?" or "dispread --"),
- then the discovered USB and serial ports will be listed. On
- UNIX/Linux, a list of all possible serial ports are shown, but not
- all of them may actually be present on your system.<br>
- <br>
- <a name="p"></a>The <span style="font-weight: bold;">-p</span> flag
- allows measuring in telephoto mode, using instruments that support
- this mode, e.g. the ColorMunki. Telephoto mode is one for taking
- emissive measurements from a distance (ie. telespectometer,
- tele-colorimeter) mode, and typically would be used for measuring
- projector type displays. If a device does not support a specific
- telephoto mode, then the normal emissive mode may be suitable for
- measuring projectors.<br>
- <br>
- <a name="y"></a>The <span style="font-weight: bold;">-y</span> flag
- allows setting the Display Type. The selection typically determines
- two aspects of of the instrument operation: <span
- style="font-weight: bold;">1)</span> It may set the measuring mode
- to suite <a
- href="http://en.wikipedia.org/wiki/Comparison_of_display_technology"><span
- style="font-weight: bold;">refresh</span> or <span
- style="font-weight: bold;">non-refresh</span> displays</a>.
- Typically only LCD (Liquid Crystal) displays have a non-refresh
- nature. <span style="font-weight: bold;">2)</span> It may select an
- instrument calibration matrix suitable for a particular display
- type. The selections available depends on the type and model of
- instrument, and a list of the options for the discovered instruments
- will be shown in the <a href="ArgyllDoc.html#CmdLine">usage</a>
- information. For more details on what particular instruments support
- and how this works, see <a href="instruments.html">Operation of
- particular instruments</a>. <b>3)</b> Any installed CCSS files
- (if applicable), or CCMX files. These files are typically created
- using <a href="ccxxmake.html">ccxxmake</a>,
- and installed using <a
- href="oeminst.html">oeminst</a>. The
- default and Base Calibration types will be indicated in the usage.<br>
- <br>
- <a name="s"></a><span style="font-weight: bold;">-s</span>: By
- default only the colorimetric information (XYZ value) will be saved,
- but for instruments that support spectral readings (such as the
- Gretag Spectrolino), the <b>-s</b> option will save the spectral
- readings to the .ti3 file as well.<br>
- <br>
- <a name="k"></a> <span style="font-weight: bold;">-k: </span>If a
- display video lookup table calibration <a
- href="File_Formats.html#.cal">.cal</a> file is provided, it will
- be loaded into the display <span style="font-weight: bold;">VideoLUTs</span>
- while the measurements are being taken, thereby being applied to the
- measurement values, and the calibration will also included in the
- resulting .ti3 data file, so that <a href="colprof.html">colprof</a>
- can include it as a <span style="font-weight: bold;">vcgt</span>
- tag in the resulting profile. This is the <span style="font-weight:
- bold;">normal</span> way to profile a calibrated display. The
- calibration file has usually been created using <a
- href="dispcal.html">dispcal</a>. If the calibration file indicates
- that the displays VideoLUTs are not accessible, or if they prove not
- to be accessible, then dispread will switch to <span
- style="font-weight: bold;">-K</span> mode (see below). If a
- calibration file is not supplied using <b>-k</b> or <b>-K</b>,
- then the display will be measured in whatever calibration state it
- is in, and no calibration information is saved to the resulting .ti3
- file.<br>
- If the calibration file provided created using video range encoding
- (dispcal -E), then the <b>-E</b> option in dispread will be
- triggered automatically.<br>
- <span style="font-weight: bold;">NOTE</span> that the calibration is
- loaded into the display hardware just before the instrument starts
- measurement, after the test window first appears.<br>
- <br>
- <a name="K"></a> <span style="font-weight: bold;">-K: </span>If a
- display video lookup table calibration <a
- href="File_Formats.html#.cal">.cal</a> file is provided, it will
- be applied to the test values for each measurement, and also
- included in the resulting .ti3 data file, so that <a
- href="colprof.html">colprof</a> can include it as a <span
- style="font-weight: bold;">vcgt</span> tag in the resulting
- profile. This is <span style="font-weight: bold;">NOT</span>
- normally the best way to profile a calibrated display, since the
- frame buffer may have lower precision than the VideoLUTs output
- values. This is the way calibration should be applied if MadVR is
- being used to display the test patches. If a calibration file is not
- supplied using <b>-k</b> or <b>-K</b>, then the display will be
- measured in whatever calibration state it is in, and no calibration
- information is saved to the resulting .ti3 file.<br>
- If the calibration file provided created using video range encoding
- (dispcal -E), then the <b>-E</b> option in dispread will be
- triggered automatically.<br>
- <br>
- <a name="V"></a><b>-V:</b> [MSWin] If using MadVR to display test
- patches, then enable Color Managenent (3dLut). This would be used
- for verification measurement.<br>
- <br>
- <a name="P"></a> The <span style="font-weight: bold;">-P</span>
- parameter allows you to position and size the test patch window. By
- default it is places in the center of the screen, and sized
- appropriately for the type of instrument. The <span
- style="font-weight: bold;">ho</span> and <span
- style="font-weight: bold;">vo</span> values govern the horizontal
- and vertical offset respectively. A value of 0.0 positions the
- window to the far left or top of the screen, a value of 0.5
- positions it in the center of the screen (the default), and 1.0
- positions it to the far right or bottom of the screen. If three
- parameters are provided, then the <span style="font-weight: bold;">ss</span>
- parameter is a scale factor for the test window size. A value of 0.5
- for instance, would produce a half sized window. A value of 2.0 will
- produce a double size window. If four parameters are provided, then
- the last two set independent horizontal and vertical scaling
- factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be
- specified as a single string (no space between the numbers and the
- comma). For example, to create a double sized test window at the top
- right of the screen, use <span style="font-weight: bold;">-P 1,0,2</span>
- . To create a window twice as wide as high: <span
- style="font-weight: bold;">-P 1,0,2,1</span>.<br>
- <br>
- <a name="F"></a> The <span style="font-weight: bold;">-F</span>
- flag causes the while screen behind the test window to be masked
- with black. This can aid black accuracy when measuring CRT displays
- or projectors.<br>
- <br>
- <a name="E"></a> The <span style="font-weight: bold;">-E</span>
- flag causes the test values to be scaled to the Video RGB encoding
- range of 16/255 to 235/255. If the calibration file provided using
- the <b>-k</b> or <b>-K</b> flag was created using video range
- encoding, then this option will be triggered automatically.<br>
- <br>
- <a name="n"></a><span style="font-weight: bold;">-n</span>: When
- running on a UNIX based system that used the X11 Windowing System, <b>dispread</b>
- normally selects the override redirect so that the test window will
- appear above any other windows on the display. On some systems this
- can interfere with window manager operation, and the <b>-n</b>
- option turns this behaviour off.<br>
- <br>
- <a name="J"></a> The -<span style="font-weight: bold;">J</span>
- option runs through the black and sensor relative calibration
- routines for the Xrite DTP92 and DTP94 instrument, the black level
- calibration for the Eye-One Display 1, and a CRT frequency
- calibration for the Eye-One Display 2. For the black calibration the
- instrument should be placed on an opaque, black surface, and any
- stray light should be avoided by placing something opaque over the
- instrument. If a Spectrolino is being used, then a white and black
- calibration will always be performed before the instrument can be
- placed on the display, unless the <a href="#N">-N</a> flag is used.
- Generally it is not necessary to do a calibration every time an
- instrument is used, just now and again. There is no point in
- doing&nbsp; a CRT frequency calibration, as this will be done
- automatically at the commencement of patch reading.<br>
- <br>
- <a name="N"></a> <span style="font-weight: bold;">-N</span> Any
- instrument that requires regular calibration will ask for
- calibration on initial start-up. Sometimes this can be awkward if
- the instrument is being mounted in some sort of measuring jig, or
- annoying if several sets of readings are being taken in quick
- succession. The -<span style="font-weight: bold;">N</span>
- suppresses this initial calibration if a valid and not timed out
- previous calibration is recorded in the instrument or on the host
- computer. It is advisable to only use this option on the second and
- subsequent measurements in a single session.<br>
- <br>
- <a name="H"></a> The -<span style="font-weight: bold;">H</span>
- option turns on high resolution spectral mode, if the instrument
- supports it. See <a href="instruments.html">Operation of particular
- instruments</a> for more details. This may give better accuracy
- for display measurements.<br>
- <br>
- <a name="w"></a>The <b>-w</b> flag disables the normalisation of
- the white patch value to 100.0, resulting in values that are in
- cd/m^2. This is mainly for diagnostic purposes.<br>
- <br>
- <a name="X1"></a> The -<span style="font-weight: bold;">X <span
- style="font-style: italic;">file.ccmx</span></span> option reads
- a <a href="File_Formats.html#.ccmx">Colorimeter Correction Matrix</a>
- from the given file, and applies it to the colorimeter instruments
- readings. This can improve a colorimeters accuracy for a particular
- type of display. A list of contributed <span style="font-weight:
- bold;">ccmx</span> files is <a href="ccmxs.html">here</a>.<br>
- <br>
- <a name="X2"></a> The -<span style="font-weight: bold;">X <span
- style="font-style: italic;">file.ccss</span></span> option reads
- a <a href="File_Formats.html#.ccss">Colorimeter Calibration
- Spectral Sample</a> from the given file, and uses it to set the
- colorimeter instruments calibration. This will only work with
- colorimeters that rely on sensor spectral sensitivity calibration
- information (ie. the X-Rite <span style="font-weight: bold;">i1d3</span>,
+
+
+
+
+
+
+
+
+ 1,2</span> . Some experimentation may be needed using <a
+ href="dispwin.html">dispwin</a> on such systems, to discover what
+ screen has access to the VideoLUT hardware, and which screens the
+ test patches appear on. You may be able to calibrate one screen, and
+ then share the calibration with another screen. Profiling can be
+ done independently to calibration.<br>
+ <br>
+ <a name="dweb"></a><span style="font-weight: bold;">-dweb</span> or
+ <span style="font-weight: bold;">-dweb:port</span> starts a
+ standalone web server on your machine, which then allows a local or
+ remote web browser to display the the color test patches. By default
+ port <span style="font-weight: bold;">8080</span> is used, but this
+ can be overridden by appending a <span style="font-weight: bold;">:</span>
+ and the port number i.e. <span style="font-weight: bold;">-dweb:8001</span>.
+ The URL will be <span style="font-weight: bold;">http://</span>
+ then name of the machine or its I.P. address followed by a colon and
+ the port number - e.g something like <span style="font-weight:
+ bold;">http://192.168.0.1:8080</span>. If you use the verbose
+ option (<span style="font-weight: bold;">-v</span>) then a likely
+ URL will be printed once the server is started, or you could run <span
+ style="font-weight: bold;">ipconfig</span> (MSWin) or <span
+ style="font-weight: bold;">/sbin/ifconfig</span> (Linux or OS X)
+ and identify an internet address for your machine that way. <b>
+ JavaScript</b> needs to be enabled in your web browser for this to
+ work. You may have to modify any firewall to permit port 8080 to be
+ accessed on your machine.<br>
+ <br>
+ Note that if you use this method of displaying test patches, that
+ there is no access to the display VideoLUTs and that the colors will
+ be displayed with 8 bit per component precision, and any
+ screen-saver or power-saver will not be disabled. You will also be
+ at the mercy of any color management applied by the web browser, and
+ may have to carefully review and configure such color management.
+ See the <a href="dispcal.html#o">-o</a> flag for an explanation of
+ the implications of having no access to the VideoLUTs.<br>
+ <br>
+ <a name="dmadvr"></a><span style="font-weight: bold;">-dmadvr</span>
+ [MSWin only] causes test patches to be displayed using the MadVR
+ video renderer. Note that you may have to start the video playback
+ software and load a video clip in pause for this to work. MadVR
+ rendering does not need or support VideoLUT access, so the <a
+ href="#K">-K</a> option should be used to read calibrated values.
+ Be aware that the state of the Graphics Card VideoLUTs may affect
+ the results, and therefore may have to be set appropriately using
+ dispwin. By default the test patch colors will <u>not</u> be
+ processed by the MadVR 3dLut (see the -<a href="#V">V</a> flag).<br>
+ <br>
+ <a name="dcc"></a><span style="font-weight: bold;">-dcc</span> or <b>-dcc:<i>no</i></b>
+ causes test patches to be displayed using and available <a
+ href="http://en.wikipedia.org/wiki/Chromecast">ChromeCast</a> to
+ your TV. Use <b>-dcc:?</b> to display a list of ChromeCasts on your
+ local network. Note that the ChromeCast as a test patch source is
+ probably the<b> least accurate</b> of your choices, since it
+ up-samples the test patch and transforms from RGB to YCC and back,
+ but should be accurate within ± 1 bit. You may have to modify any
+ firewall to permit port 8081 to be accessed on your machine if it
+ falls back to the Default receiver (see <a href="Installing.html">installation
+ instructions</a> for your platform).<br>
+ <br>
+ <a name="c"></a> <span style="font-weight: bold;">-c</span>: The
+ instrument is assumed to communicate through a USB or serial
+ communication port, and the port can be selected with the <b>-c</b>
+ option, if the instrument is not connected to the first port. If you
+ invoke <span style="font-weight: bold;">dispread</span> so as to
+ display the usage information (i.e. "dispread -?" or "dispread --"),
+ then the discovered USB and serial ports will be listed. On
+ UNIX/Linux, a list of all possible serial ports are shown, but not
+ all of them may actually be present on your system.<br>
+ <br>
+ <a name="p"></a>The <span style="font-weight: bold;">-p</span> flag
+ allows measuring in telephoto mode, using instruments that support
+ this mode, e.g. the ColorMunki. Telephoto mode is one for taking
+ emissive measurements from a distance (ie. telespectometer,
+ tele-colorimeter) mode, and typically would be used for measuring
+ projector type displays. If a device does not support a specific
+ telephoto mode, then the normal emissive mode may be suitable for
+ measuring projectors.<br>
+ <br>
+ <a name="y"></a>The <span style="font-weight: bold;">-y</span> flag
+ allows setting the Display Type. The selection typically determines
+ two aspects of of the instrument operation: <span
+ style="font-weight: bold;">1)</span> It may set the measuring mode
+ to suite <a
+ href="http://en.wikipedia.org/wiki/Comparison_of_display_technology"><span
+ style="font-weight: bold;">refresh</span> or <span
+ style="font-weight: bold;">non-refresh</span> displays</a>.
+ Typically only LCD (Liquid Crystal) displays have a non-refresh
+ nature. <span style="font-weight: bold;">2)</span> It may select an
+ instrument calibration matrix suitable for a particular display
+ type. The selections available depends on the type and model of
+ instrument, and a list of the options for the discovered instruments
+ will be shown in the <a href="ArgyllDoc.html#CmdLine">usage</a>
+ information. For more details on what particular instruments support
+ and how this works, see <a href="instruments.html">Operation of
+ particular instruments</a>. <b>3)</b> Any installed CCSS files
+ (if applicable), or CCMX files. These files are typically created
+ using <a href="ccxxmake.html">ccxxmake</a>, and installed using <a
+ href="oeminst.html">oeminst</a>. The default and Base Calibration
+ types will be indicated in the usage.<br>
+ <br>
+ <a name="s"></a><span style="font-weight: bold;">-s</span>: By
+ default only the colorimetric information (XYZ value) will be saved,
+ but for instruments that support spectral readings (such as the
+ Gretag Spectrolino), the <b>-s</b> option will save the spectral
+ readings to the .ti3 file as well.<br>
+ <br>
+ <a name="k"></a> <span style="font-weight: bold;">-k: </span>If a
+ display video lookup table calibration <a
+ href="File_Formats.html#.cal">.cal</a> file is provided, it will
+ be loaded into the display <span style="font-weight: bold;">VideoLUTs</span>
+ while the measurements are being taken, thereby being applied to the
+ measurement values, and the calibration will also included in the
+ resulting .ti3 data file, so that <a href="colprof.html">colprof</a>
+ can include it as a <span style="font-weight: bold;">vcgt</span>
+ tag in the resulting profile. This is the <span style="font-weight:
+ bold;">normal</span> way to profile a calibrated display. The
+ calibration file has usually been created using <a
+ href="dispcal.html">dispcal</a>. If the calibration file indicates
+ that the displays VideoLUTs are not accessible, or if they prove not
+ to be accessible, then dispread will switch to <span
+ style="font-weight: bold;">-K</span> mode (see below). If a
+ calibration file is not supplied using <b>-k</b> or <b>-K</b>,
+ then the display will be measured in whatever calibration state it
+ is in, and no calibration information is saved to the resulting .ti3
+ file.<br>
+ If the calibration file provided created using video range encoding
+ (dispcal -E), then the <b>-E</b> option in dispread will be
+ triggered automatically.<br>
+ <span style="font-weight: bold;">NOTE</span> that the calibration is
+ loaded into the display hardware just before the instrument starts
+ measurement, after the test window first appears.<br>
+ <br>
+ <a name="K"></a> <span style="font-weight: bold;">-K: </span>If a
+ display video lookup table calibration <a
+ href="File_Formats.html#.cal">.cal</a> file is provided, it will
+ be applied to the test values for each measurement, and also
+ included in the resulting .ti3 data file, so that <a
+ href="colprof.html">colprof</a> can include it as a <span
+ style="font-weight: bold;">vcgt</span> tag in the resulting
+ profile. This is <span style="font-weight: bold;">NOT</span>
+ normally the best way to profile a calibrated display, since the
+ frame buffer may have lower precision than the VideoLUTs output
+ values. This is the way calibration should be applied if MadVR is
+ being used to display the test patches. If a calibration file is not
+ supplied using <b>-k</b> or <b>-K</b>, then the display will be
+ measured in whatever calibration state it is in, and no calibration
+ information is saved to the resulting .ti3 file.<br>
+ If the calibration file provided created using video range encoding
+ (dispcal -E), then the <b>-E</b> option in dispread will be
+ triggered automatically.<br>
+ <br>
+ <a name="V"></a><b>-V:</b> [MSWin] If using MadVR to display test
+ patches, then enable Color Managenent (3dLut). This would be used
+ for verification measurement.<br>
+ <br>
+ <a name="P"></a> The <span style="font-weight: bold;">-P</span>
+ parameter allows you to position and size the test patch window. By
+ default it is places in the center of the screen, and sized
+ appropriately for the type of instrument, or 10% of the width of the
+ display if the display size is unknown. The <span
+ style="font-weight: bold;">ho</span> and <span
+ style="font-weight: bold;">vo</span> values govern the horizontal
+ and vertical offset respectively. A value of 0.0 positions the
+ window to the far left or top of the screen, a value of 0.5
+ positions it in the center of the screen (the default), and 1.0
+ positions it to the far right or bottom of the screen. If three
+ parameters are provided, then the <span style="font-weight: bold;">ss</span>
+ parameter is a scale factor for the test window size. A value of 0.5
+ for instance, would produce a half sized window. A value of 2.0 will
+ produce a double size window. If four parameters are provided, then
+ the last two set independent horizontal and vertical scaling
+ factors. Note that the ho,vo,ss or ho,vo,hs,vs numbers must be
+ specified as a single string (no space between the numbers and the
+ comma). For example, to create a double sized test window at the top
+ right of the screen, use <span style="font-weight: bold;">-P 1,0,2</span>
+ . To create a window twice as wide as high: <span
+ style="font-weight: bold;">-P 1,0,2,1</span>.<br>
+ <br>
+ <a name="F"></a> The <span style="font-weight: bold;">-F</span>
+ flag causes the while screen behind the test window to be masked
+ with black. This can aid black accuracy when measuring CRT displays
+ or projectors.<br>
+ <br>
+ <a name="E"></a> The <span style="font-weight: bold;">-E</span>
+ flag causes the test values to be scaled to the Video RGB encoding
+ range of 16/255 to 235/255. If the calibration file provided using
+ the <b>-k</b> or <b>-K</b> flag was created using video range
+ encoding, then this option will be triggered automatically. This
+ will also set quantization of 8 bits (see -Z flag below). If your
+ video connection is better than 8 bits (ie. 10 or 12 bits), then you
+ may wish to raise this default.<br>
+ <br>
+ <a name="Z"></a> <b>-Z nbits </b>Normally the target device values
+ are floating point numbers that may get rounded and quantized in the
+ process of printing them or reproducing them on the display device.
+ If some of this quantization can be accounted for, it may improve
+ the accuracy of the resulting profile, and the <span
+ style="font-weight: bold;">Q</span> parameter allows this
+ quantization to be specified. The parameter is the number of binary
+ digits (bits) that the device values should be quantized to. An idea
+ of the number of bits of precision that makes its way to your
+ display can be obtained by using <a href="dispcal.html#R">dispcal
+ -R</a> If Video encoding is selected (see -E flag above), then 8
+ bits is selected by default. On systems using an VGA connection or
+ Display Port with a graphics card with VideoLUT entries with greater
+ than 8 bits depth, or if using the MadVR rendered with dithering,
+ then a higher bit depth is typically possible.<br>
+ <br>
+ <a name="n"></a><span style="font-weight: bold;">-n</span>: When
+ running on a UNIX based system that used the X11 Windowing System, <b>dispread</b>
+ normally selects the override redirect so that the test window will
+ appear above any other windows on the display. On some systems this
+ can interfere with window manager operation, and the <b>-n</b>
+ option turns this behaviour off.<br>
+ <br>
+ <a name="J"></a> The -<span style="font-weight: bold;">J</span>
+ option runs through the black and sensor relative calibration
+ routines for the Xrite DTP92 and DTP94 instrument, the black level
+ calibration for the Eye-One Display 1, and a CRT frequency
+ calibration for the Eye-One Display 2. For the black calibration the
+ instrument should be placed on an opaque, black surface, and any
+ stray light should be avoided by placing something opaque over the
+ instrument. If a Spectrolino is being used, then a white and black
+ calibration will always be performed before the instrument can be
+ placed on the display, unless the <a href="#N">-N</a> flag is used.
+ Generally it is not necessary to do a calibration every time an
+ instrument is used, just now and again. There is no point in
+ doing&nbsp; a CRT frequency calibration, as this will be done
+ automatically at the commencement of patch reading.<br>
+ <br>
+ <a name="N"></a> <span style="font-weight: bold;">-N</span> Any
+ instrument that requires regular calibration will ask for
+ calibration on initial start-up. Sometimes this can be awkward if
+ the instrument is being mounted in some sort of measuring jig, or
+ annoying if several sets of readings are being taken in quick
+ succession. The -<span style="font-weight: bold;">N</span>
+ suppresses this initial calibration if a valid and not timed out
+ previous calibration is recorded in the instrument or on the host
+ computer. It is advisable to only use this option on the second and
+ subsequent measurements in a single session.<br>
+ <br>
+ <a name="H"></a> The -<span style="font-weight: bold;">H</span>
+ option turns on high resolution spectral mode, if the instrument
+ supports it. See <a href="instruments.html">Operation of particular
+ instruments</a> for more details. This may give better accuracy
+ for display measurements.<br>
+ <br>
+ <a name="w"></a>The <b>-w</b> flag disables the normalisation of
+ the white patch value to 100.0, resulting in values that are in
+ cd/m^2. This is mainly for diagnostic purposes.<br>
+ <br>
+ <a name="X1"></a> The -<span style="font-weight: bold;">X <span
+ style="font-style: italic;">file.ccmx</span></span> option reads
+ a <a href="File_Formats.html#.ccmx">Colorimeter Correction Matrix</a>
+ from the given file, and applies it to the colorimeter instruments
+ readings. This can improve a colorimeters accuracy for a particular
+ type of display. A list of contributed <span style="font-weight:
+ bold;">ccmx</span> files is <a href="ccmxs.html">here</a>.<br>
+ <br>
+ <a name="X2"></a> The -<span style="font-weight: bold;">X <span
+ style="font-style: italic;">file.ccss</span></span> option reads
+ a <a href="File_Formats.html#.ccss">Colorimeter Calibration
+ Spectral Sample</a> from the given file, and uses it to set the
+ colorimeter instruments calibration. This will only work with
+ colorimeters that rely on sensor spectral sensitivity calibration
+ information (ie. the X-Rite <span style="font-weight: bold;">i1d3</span>,
or the DataColor <span style="font-weight: bold;">Spyder4</span>).This
can
improve
@@ -1104,144 +1414,152 @@ a
- colorimeters accuracy for a particular type of display.<br>
- <br>
- <a name="Q"></a> The <b>-Q</b> flag allows specifying a tristimulus
- observer, and is used to compute PCS (Profile Connection Space)
- tristimulus values from spectral readings or using a colorimeter
- that has CCSS capability. The following choices are available:<br>
- <b>&nbsp; 1931_2</b> selects the standard CIE 1931 2 degree
- observer. The default.<br>
- &nbsp; <b>1964_10</b> selects the standard CIE 1964 10 degree
- observer.<br>
- &nbsp; <b>1955_2</b> selects the Stiles and Birch 1955 2 degree
- observer<br>
- &nbsp; <b>1978_2 </b>selects the Judd and Voss 1978 2 degree
- observer<br>
- &nbsp; <b>shaw</b> selects the Shaw and Fairchild 1997 2 degree
- observer<br>
- &nbsp; <b>1964_10c</b> selects a version of the CIE 1964 10 degree
- observer that has been adjusted using a 3x3 matrix to better agree
- with the 1931 2 degree observer.<br>
- <br>
- <span style="font-weight: bold;">NOTE</span> that if you select
- anything other than the default 1931 2 degree observer, that the Y
- values will not be cd/m^2, due to the Y curve not being the CIE 1924
- photopic V(&#955;) luminosity function.<br>
- <br>
- <a name="I"></a> The -<span style="font-weight: bold;">I <span
- style="font-style: italic;">b|w</span></span> options invoke
- instrument black level, and display white level compensation
- (respectively). Instrument black level drift compensation attempts
- to combat instrument black calibration drift by using a display
- black test patch as a reference. If an instrument is not
- acclimatised sufficiently to the measurement conditions, changes in
- temperature can affect the black readings. Display white level drift
- compensation attempts to combat changes in display brightness as it
- warms up by measuring a white patch every so often, and using it to
- normalise all the other readings. If just instrument black drift
- compensation is needed, use <span style="font-weight: bold;">-Ib</span>.
- If just display white level compensation is needed, use <span
- style="font-weight: bold;">-Iw</span>. If both are needed, use <span
- style="font-weight: bold;">-Ibw</span> or <span
- style="font-weight: bold;">-Iwb</span>.<br>
- <br>
- <a name="YR"></a> The -<span style="font-weight: bold;">Y R:<i>rate</i></span>
- options overrides calibration of the instrument refresh rate. This
- may be useful if the instrument supports this function and the
- refresh rate cannot be accurately calibrated from the display
- itself.<br>
- <span style="font-weight: bold;">&nbsp;<br>
- </span><a name="YA"></a> The -<span style="font-weight: bold;">Y A</span>
- option uses a non-adaptive integration time emission measurement
- mode, if the instrument supports it, such as the Eye-One Pro or
- ColorMunki. By default an adaptive integration time measurement mode
- will be used for emission measurements, but some instruments support
- a fixed integration time mode that can be used with display devices.
- This may give increased consistency and faster measurement times,
- but may also give less accurate low level readings.<br>
- <br>
- <a name="Yp"></a> The -<span style="font-weight: bold;">Y p</span>
- option skips asking the user to place the instrument on the display.
- Normally a grey patch is displayed, and then the user is asked to
- confirm that the instrument is in place, so that readings can
- commence. This flag disables that check. This may be useful in
- automating certain operations.<br>
- <span style="font-weight: bold;"><br>
- </span><a name="C"></a> The -<span style="font-weight: bold;">C</span>
- <span style="font-weight: bold;">"command" </span>option allows a
- method of relaying each test value to some other display than that
- on the system running dispread (for instance, a photo frame, PDA
- screen etc.), by causing the given command to be invoked to the
- shell, with six arguments. The first three arguments are the RGB
- test color as integers in the range 0 to 255, the second three
- parameters are the RGB test color as floating point numbers in the
- range 0.0 to 1.0. The script or tool should relay the given color to
- the screen in some manner (e.g. by generating a raster file of the
- given color and sending it to the display being profiled), before
- returning. Note that a test window will also be created on the
- system running dispread.<br>
- <br>
- <a name="M"></a> The -<span style="font-weight: bold;">M</span> <span
- style="font-weight: bold;">"command" </span>option allows a
- method of gathering each test value from some external source, such
- as an instrument that is not directly supported by Argyll. The given
- command is involked to the shell, with six arguments. The first
- three arguments are the RGB test color as integers in the range 0 to
- 255, the second three parameters are the RGB test color as floating
- point numbers in the range 0.0 to 1.0. The script or tool should
- create a file called <span style="font-weight: bold;">"command.meas</span>"
- that contains the XYZ values for the given RGB (or measured from the
- test window) in cd/m^2 as three numbers separated by spaces, before
- returning. If the command returns a non-zero return value, dispread
- will abort. Note that a test window will also be created on the
- system running dispread.<br>
- <br>
- <a name="W"></a>The <b>-W</b> <span style="font-weight: bold;">n|h|x</span>
- parameter overrides the default serial communications flow control
- setting. The value <span style="font-weight: bold;">n</span> turns
- all flow control off, <span style="font-weight: bold;">h</span>
- sets hardware handshaking, and <span style="font-weight: bold;">x</span>
- sets Xon/Xoff handshaking. This commend may be useful in workaround
- serial communications issues with some systems and cables. <br>
- <br>
- <a name="D"></a>The <b>-D</b> flag causes communications and other
- instrument diagnostics to be printed to stdout. A level can be set
- between 1 .. 9, that may give progressively more verbose
- information, depending on the instrument. This can be useful in
- tracking down why an instrument can't connect.<br>
- <br>
- <a name="p1"></a> The final parameter on the command line is the
- base filename for the <a href="File_Formats.html#.ti1">.ti1</a>
- input file, and the <a href="File_Formats.html#.ti3">.ti3</a>
- output file. <b>dispread</b> will add the .ti1 and .ti3 extensions
- automatically.<br>
- <br>
- <span style="font-weight: bold;">NOTE</span> that on an X11 system,
- if the environment variable <span style="font-weight: bold;">ARGYLL_IGNORE_XRANDR1_2</span>
- is set (ie. set it to "yes"), then the presence of the XRandR 1.2
- extension will be ignored, and other extensions such as Xinerama and
- XF86VidMode extension will be used. This may be a way to work around
- buggy XRandR 1.2 implementations.<br>
- <br>
- <hr style="width: 100%; height: 2px;"><br>
- If a large number of patches is being read, the screensaver on many
- systems can interfere with the operation of dispread. It is
- therefore advisable in these cases to manually turn off the
- screensaver before commencing the measurements.<br>
- <br>
- If communications break down with a USB connected instrument, you
- may have to unplug it, and plug it in again to recover.<br>
- <br>
- Some systems (Apple OSX in particular) have a special set of user
- interface controls ("Universal Access") that allows altering the
- display in ways designed to assist visually impaired users, by
- increasing contrast etc. This will interfere badly with any attempts
- to calibrate or profile such a system, and must be turned off in
- order to do so. Note that certain magic keyboard sequences can turn
- this on by accident.<br>
- <br>
- <br>
- <br>
- </body>
-</html>
+
+
+
+
+
+
+
+
+ colorimeters accuracy for a particular type of display.<br>
+ <br>
+ <a name="Q"></a> The <b>-Q</b> flag allows specifying a tristimulus
+ observer, and is used to compute PCS (Profile Connection Space)
+ tristimulus values from spectral readings or using a colorimeter
+ that has CCSS capability. The following choices are available:<br>
+ <b>&nbsp; 1931_2</b> selects the standard CIE 1931 2 degree
+ observer. The default.<br>
+ &nbsp; <b>1964_10</b> selects the standard CIE 1964 10 degree
+ observer.<br>
+ &nbsp; <b>1955_2</b> selects the Stiles and Birch 1955 2 degree
+ observer<br>
+ &nbsp; <b>1978_2 </b>selects the Judd and Voss 1978 2 degree
+ observer<br>
+ &nbsp; <b>shaw</b> selects the Shaw and Fairchild 1997 2 degree
+ observer<br>
+ &nbsp; <b>1964_10c</b> selects a version of the CIE 1964 10 degree
+ observer that has been adjusted using a 3x3 matrix to better agree
+ with the 1931 2 degree observer.<br>
+ <br>
+ <span style="font-weight: bold;">NOTE</span> that if you select
+ anything other than the default 1931 2 degree observer, that the Y
+ values will not be cd/m^2, due to the Y curve not being the CIE 1924
+ photopic V(&#955;) luminosity function.<br>
+ <br>
+ <a name="I"></a> The -<span style="font-weight: bold;">I <span
+ style="font-style: italic;">b|w</span></span> options invoke
+ instrument black level, and display white level compensation
+ (respectively). Instrument black level drift compensation attempts
+ to combat instrument black calibration drift by using a display
+ black test patch as a reference. If an instrument is not
+ acclimatised sufficiently to the measurement conditions, changes in
+ temperature can affect the black readings. Display white level drift
+ compensation attempts to combat changes in display brightness as it
+ warms up by measuring a white patch every so often, and using it to
+ normalise all the other readings. If just instrument black drift
+ compensation is needed, use <span style="font-weight: bold;">-Ib</span>.
+ If just display white level compensation is needed, use <span
+ style="font-weight: bold;">-Iw</span>. If both are needed, use <span
+ style="font-weight: bold;">-Ibw</span> or <span
+ style="font-weight: bold;">-Iwb</span>.<br>
+ <br>
+ <a name="YR"></a> The -<span style="font-weight: bold;">Y R:<i>rate</i></span>
+ options overrides calibration of the instrument refresh rate. This
+ may be useful if the instrument supports this function and the
+ refresh rate cannot be accurately calibrated from the display
+ itself.<br>
+ <span style="font-weight: bold;">&nbsp;<br>
+ </span><a name="YA"></a> The -<span style="font-weight: bold;">Y A</span>
+ option uses a non-adaptive integration time emission measurement
+ mode, if the instrument supports it, such as the Eye-One Pro,
+ ColorMunki, i1d3 and K10. By default an adaptive integration time
+ measurement mode will be used for emission measurements, but some
+ instruments support a fixed integration time mode that can be used
+ with display devices. This may give faster measurement times, but
+ may also give less accurate low level readings.<br>
+ <br>
+ <a name="Yp"></a> The -<span style="font-weight: bold;">Y p</span>
+ option skips asking the user to place the instrument on the display.
+ Normally a grey patch is displayed, and then the user is asked to
+ confirm that the instrument is in place, so that readings can
+ commence. This flag disables that check. This may be useful in
+ automating certain operations.<br>
+ <span style="font-weight: bold;"><br>
+ </span><a name="C"></a> The -<span style="font-weight: bold;">C</span>
+ <span style="font-weight: bold;">"command" </span>option allows a
+ method of relaying each test value to some other display than that
+ on the system running dispread (for instance, a photo frame, PDA
+ screen etc.), by causing the given command to be invoked to the
+ shell, with six arguments. The first three arguments are the RGB
+ test color as integers in the range 0 to 255, the second three
+ parameters are the RGB test color as floating point numbers in the
+ range 0.0 to 1.0. The script or tool should relay the given color to
+ the screen in some manner (e.g. by generating a raster file of the
+ given color and sending it to the display being profiled), before
+ returning. Note that a test window will also be created on the
+ system running dispread.<br>
+ <br>
+ <a name="M"></a> The -<span style="font-weight: bold;">M</span> <span
+ style="font-weight: bold;">"command" </span>option allows a
+ method of gathering each test value from some external source, such
+ as an instrument that is not directly supported by Argyll. The given
+ command is involked to the shell, with six arguments. The first
+ three arguments are the RGB test color as integers in the range 0 to
+ 255, the second three parameters are the RGB test color as floating
+ point numbers in the range 0.0 to 1.0. The script or tool should
+ create a file called <span style="font-weight: bold;">"command.meas</span>"
+ that contains the XYZ values for the given RGB (or measured from the
+ test window) in cd/m^2 as three numbers separated by spaces, before
+ returning. If the command returns a non-zero return value, dispread
+ will abort. Note that a test window will also be created on the
+ system running dispread.<br>
+ <br>
+ <a name="W"></a>The <b>-W</b> <span style="font-weight: bold;">n|h|x</span>
+ parameter overrides the default serial communications flow control
+ setting. The value <span style="font-weight: bold;">n</span> turns
+ all flow control off, <span style="font-weight: bold;">h</span>
+ sets hardware handshaking, and <span style="font-weight: bold;">x</span>
+ sets Xon/Xoff handshaking. This commend may be useful in workaround
+ serial communications issues with some systems and cables. <br>
+ <br>
+ <a name="D"></a>The <b>-D</b> flag causes communications and other
+ instrument diagnostics to be printed to stdout. A level can be set
+ between 1 .. 9, that may give progressively more verbose
+ information, depending on the instrument. This can be useful in
+ tracking down why an instrument can't connect.<br>
+ <br>
+ <a name="p1"></a> The final parameter on the command line is the
+ base filename for the <a href="File_Formats.html#.ti1">.ti1</a>
+ input file, and the <a href="File_Formats.html#.ti3">.ti3</a>
+ output file. <b>dispread</b> will add the .ti1 and .ti3 extensions
+ automatically.<br>
+ <br>
+ <span style="font-weight: bold;">NOTE</span> that on an X11 system,
+ if the environment variable <span style="font-weight: bold;">ARGYLL_IGNORE_XRANDR1_2</span>
+ is set (ie. set it to "yes"), then the presence of the XRandR 1.2
+ extension will be ignored, and other extensions such as Xinerama and
+ XF86VidMode extension will be used. This may be a way to work around
+ buggy XRandR 1.2 implementations.<br>
+ <br>
+ <hr style="width: 100%; height: 2px;"><br>
+ If a large number of patches is being read, the screensaver on many
+ systems can interfere with the operation of dispread. It is
+ therefore advisable in these cases to manually turn off the
+ screensaver before commencing the measurements.<br>
+ <br>
+ If communications break down with a USB connected instrument, you
+ may have to unplug it, and plug it in again to recover.<br>
+ <br>
+ Some systems (Apple OSX in particular) have a special set of user
+ interface controls ("Universal Access") that allows altering the
+ display in ways designed to assist visually impaired users, by
+ increasing contrast etc. This will interfere badly with any attempts
+ to calibrate or profile such a system, and must be turned off in
+ order to do so. Note that certain magic keyboard sequences can turn
+ this on by accident.<br>
+ <br>
+ <br>
+ <br>
+ </body>
+</html>