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diff --git a/doc/targen.html b/doc/targen.html
index d03416f..ee12f27 100644
--- a/doc/targen.html
+++ b/doc/targen.html
@@ -3,7 +3,7 @@
<head>
<title>targen</title>
<meta http-equiv="content-type" content="text/html;
- charset=ISO-8859-1">
+ charset=windows-1252">
<meta name="author" content="Graeme Gill">
</head>
<body>
@@ -11,65 +11,112 @@
<h3>Summary</h3>
Generate a profiling test target values&nbsp;<a
href="File_Formats.html#.ti1">.ti1</a> file. &nbsp;<b>targen</b>
- is
- used to generate the device channel test point values for grayscale,
- RGB, CMY, CMYK or N-color output or display devices.&nbsp;
+ is used to generate the device channel test point values for
+ grayscale, RGB, CMY, CMYK or N-color output or display
+ devices.&nbsp;
<h3>Usage Summary</h3>
<small><span style="font-family: monospace;">targen [options]
outfile</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#v">-v [level]</a><span
+ style="font-family: monospace;"> &nbsp;&nbsp;&nbsp;&nbsp;
+ Verbose mode [optional verbose level, 1..n]</span><br
style="font-family: monospace;">
- &nbsp;&nbsp;&nbsp;&nbsp; Verbose mode [optional
- verbose level, 1..n]</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#d">-d col_comb</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp; choose
colorant combination from the following:</span><br
style="font-family: monospace;">
<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;
- 0:
- Print
- grey</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 0: Print grey</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;
- 1:
- Video
- grey</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp; 1: Video grey</span><br
+ style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 2:
- Print
- RGB</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2: Print RGB</span><br
+ style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp; &nbsp;
- &nbsp;
- &nbsp; &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3:
- Video RGB</span><br style="font-family: monospace;">
+ &nbsp; &nbsp; &nbsp;
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3: Video RGB</span><br
+ style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp; &nbsp; &nbsp;
- &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 4: CMYK<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 5:
- CMY<br style="font-family: monospace;">
+ &nbsp; &nbsp;
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4: CMYK<br>
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 5: CMY<br style="font-family: monospace;">
</span><span style="font-family: monospace;">&nbsp;&nbsp; &nbsp;
- &nbsp;
- &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6:
- CMYK + Light CM</span><br style="font-family: monospace;">
+ &nbsp; &nbsp; &nbsp;
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6: CMYK +
+ Light CM</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;
- &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7: CMYK + Light CMK</span><br
- style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7:
+ CMYK + Light CMK</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;
&nbsp;
@@ -79,150 +126,381 @@
CMYK
+
Red
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Blue</span><br style="font-family: monospace;">
<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; 9: CMYK +
Orange + Green</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp; &nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 10: CMYK +
- Light CMK + Light Light K</span><br style="font-family:
- monospace;">
+ &nbsp; &nbsp; &nbsp;&nbsp;
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 10: CMYK + Light CMK
+ + Light Light K</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp; &nbsp;
+ &nbsp; &nbsp; &nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 11: CMYK +
Orange + Green + Light CM</span><br style="font-family:
monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;
- &nbsp; &nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 12: CMYK + Light
- CM + Medium CM</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 12:
+ CMYK + Light CM + Medium CM</span><br style="font-family:
+ monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#D">-D colorant</a><span
style="font-family: monospace;"> &nbsp;&nbsp;&nbsp; Add or
delete colorant from combination:</span><br style="font-family:
monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 0:
- Additive</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+ 0: Additive</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp; &nbsp;
&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 1:
- Cyan</span><br style="font-family: monospace;">
+ 1: Cyan</span><br style="font-family: monospace;">
<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; 2:
Magenta</span><br style="font-family: monospace;">
<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; 3:
Yellow</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 4:
- Black</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4: Black</span><br
+ style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 5:
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5:
Orange</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 6:
- Red</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 6: Red</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 7:
- Green</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 7: Green</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 8:
- Blue</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 8: Blue</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 9:
- White</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 9: White</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 10:
- Light
- Cyan</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 10: Light Cyan</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 11:
- Light
- Magenta</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 11: Light Magenta</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 12:
- Light
- Yellow</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 12: Light Yellow</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;
- 13:
- Light
- Black</span><br style="font-family: monospace;">
+ &nbsp;&nbsp; 13: Light Black</span><br style="font-family:
+ monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 14:
- Medium
- Cyan</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 14: Medium Cyan</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 15:
- Medium
- Magenta</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 15: Medium Magenta</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 16:
- Medium
- Yellow</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 16: Medium Yellow</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp;&nbsp;
- 17:
- Medium
- Black</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp; 17:
+ Medium Black</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- 18:
- Light
- Light
- Black<br>
+
+
+
+
+
+
+
+
+
+
+
+
+
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 18: Light
+ Light Black<br>
&nbsp;<a href="#G">-G</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Generate
- good
- optimzed
- points
- rather
- than
- Fast<br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Generate good optimzed points rather than Fast<br
+ style="font-family: monospace;">
</span><span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#e">-e patches</a><span
style="font-family: monospace;"> &nbsp;&nbsp;&nbsp;&nbsp; White
- color test patches (default 4)</span><br style="font-family:
+ color test patches (default 4)</span></small><br
+ style="font-family: monospace;">
+ <small><span style="font-family: monospace;"><small><span
+ style="font-family: monospace;">&nbsp;</span><a
+ style="font-family: monospace;" href="#B">-B patches</a><span
+ style="font-family: monospace;"> &nbsp;&nbsp;&nbsp;&nbsp;
+ Black test patches (default 4 Grey/RGB, else 0)<br>
+ </span></small></span>&nbsp; <span style="font-family:
+ monospace;"></span><a style="font-family: monospace;" href="#s">-s
+
+
+
+
+
+
+
+
+
+
+
+ steps</a><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Single channel steps (default 0)</span><br style="font-family:
monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
- style="font-family: monospace;" href="#s">-s steps</a><span
- style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Single
- channel
- steps
- (default
- 0)</span><br style="font-family: monospace;">
- <span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#g">-g steps</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Gray
@@ -232,31 +510,101 @@ or
CMY
steps
(default
+
+
+
+
+
+
+
+
+
+
+
+
+
0)</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#m">-m steps</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Multidimensional
- device
- space
- cube
- steps
- (default
- 2)</span><br style="font-family: monospace;">
- <span style="font-family: monospace;">&nbsp;</span><a
- style="font-family: monospace;" href="#f">-f patches</a><span
- style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Add
- iterative &amp; adaptive full spread patches to total (default
- 836)<br>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Default
- is
- Optimised
- Farthest
- Point
- Sampling
- (OFPS)<br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Multidimensional device space cube steps (default 0)</span></small><br
+ style="font-family: monospace;">
+ <small><span style="font-family: monospace;"><small><span
+ style="font-family: monospace;">&nbsp;</span><a
+ style="font-family: monospace;" href="#b">-b steps</a><span
+ style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+ Multidimensional body centered cubic steps (default 0)<br>
+ </span></small></span>&nbsp; <span style="font-family:
+ monospace;"></span><a style="font-family: monospace;" href="#f">-f
+
+
+
+
+
+
+
+
+
+
+
+
+ patches</a><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Add iterative &amp; adaptive full spread patches to total
+ (default 836)<br>
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Default is Optimised Farthest Point Sampling (OFPS)<br
+ style="font-family: monospace;">
</span><span style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#t">-t</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -267,6 +615,19 @@ incremental
far
point
for
+
+
+
+
+
+
+
+
+
+
+
+
+
full spread</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#r">-r</a><span
@@ -278,6 +639,19 @@ device
space
random
for
+
+
+
+
+
+
+
+
+
+
+
+
+
full spread</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#R">-R</a><span
@@ -289,6 +663,19 @@ perceptual
space
random
for
+
+
+
+
+
+
+
+
+
+
+
+
+
full spread</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#q">-q</a><span
@@ -300,14 +687,26 @@ device
space-filling
quasi-random
for
+
+
+
+
+
+
+
+
+
+
+
+
+
full spread<br>
</span></small><small><span style="font-family: monospace;">&nbsp;
</span><a style="font-family: monospace;" href="#Q">-Q</a><span
style="font-family: monospace;">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
-&nbsp;
- &nbsp; Use perceptual space-filling quasi-random for full spread</span></small><br
- style="font-family: monospace;">
+ &nbsp; &nbsp; Use perceptual space-filling quasi-random for full
+ spread</span></small><br style="font-family: monospace;">
<small><span style="font-family: monospace;"></span><span
style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#i">-i</a><span
@@ -319,6 +718,19 @@ device
space
body
centered
+
+
+
+
+
+
+
+
+
+
+
+
+
cubic grid for full spread</span><br style="font-family:
monospace;">
<span style="font-family: monospace;">&nbsp; </span><a
@@ -331,8 +743,21 @@ perceptual
space
body
centered
- cubic grid for full
- spread</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ cubic grid for full spread</span><br style="font-family:
+ monospace;">
<span style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#a">-a angle</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -343,14 +768,26 @@ angle
-
0.5
for
- B.C.C. grid, default -2047840407</span><br style="font-family:
+
+
+
+
+
+
+
+
+
+
+
+
+
+ B.C.C. grid, default 0.333300</span><br style="font-family:
monospace;">
<span style="font-family: monospace;">&nbsp; </span><a
style="font-family: monospace;" href="#A">-A adaptation</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Degree
- of adaptation of OFPS 0.0 - 1.0 (default 0.1, 1.0 if -c profile
- provided)</span><br style="font-family: monospace;">
+ Degree of adaptation of OFPS 0.0 - 1.0 (default 0.1, 1.0 if -c
+ profile provided)</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#t">-t</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
@@ -361,13 +798,38 @@ point
for
full
spread
- (default
- iterative)</span><br style="font-family: monospace;">
+
+
+
+
+
+
+
+
+
+
+
+
+
+ (default iterative)</span><br style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#l">-l ilimit</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Total
ink
+
+
+
+
+
+
+
+
+
+
+
+
+
limit in %(default = none, or estimated from profile)<br>
</span></small><small><span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#p">-p power</a><span
@@ -379,104 +841,127 @@ applied
to
all
device
+
+
+
+
+
+
+
+
+
+
+
+
+
values.</span></small><br style="font-family: monospace;">
<small><span style="font-family: monospace;"></span><span
style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#c">-c profile</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Optional device ICC or MPP pre-conditioning profile filename<br>
- &nbsp;<a href="#N">-N emphasis</a>&nbsp;&nbsp;&nbsp;&nbsp;
- Degree of
- neutral axis patch concentration 0-1. (default 0.50)<br
+ &nbsp;<a href="#N">-N nemphasis</a>&nbsp;&nbsp;&nbsp; Degree of
+ neutral axis patch concentration 0-1. (default 0.50)</span></small><br>
+ <small><span style="font-family: monospace;"><small><span
+ style="font-family: monospace;">&nbsp;<a href="#V">-V
+ demphasis</a>&nbsp;&nbsp;&nbsp; dark region patch
+ concentration 1.0-4.0 (default 1.0 = none)</span></small><br
style="font-family: monospace;">
- </span>&nbsp;
- <a style="font-family: monospace;" href="#F">-F L,a,b,rad</a><span
- style="font-family: monospace;">&nbsp;&nbsp;&nbsp; Filter out
- samples
- outside Lab sphere.</span><br style="font-family: monospace;">
+ </span>&nbsp; <a style="font-family: monospace;" href="#F">-F
+ L,a,b,rad</a><span style="font-family: monospace;">&nbsp;&nbsp;&nbsp;
+
+
+
+
+
+
+
+
+
+
+
+
+ Filter out samples outside Lab sphere.</span><br
+ style="font-family: monospace;">
<span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#w">-w</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Dump
- diagnostic
- outfile.wrl
- file
- (Lab
- locations)<br>
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Dump diagnostic outfile.wrl file (Lab locations)<br>
</span></small><small><span style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#W">-W</a><span
style="font-family: monospace;">
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Dump
- diagnostic
- outfile.wrl
- file
- (Device
- locations)</span></small><br style="font-family: monospace;">
+ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+ Dump diagnostic outfile.wrl file (Device locations)</span></small><br
+ style="font-family: monospace;">
<small><span style="font-family: monospace;"></span><span
style="font-family: monospace;">&nbsp;</span><a
style="font-family: monospace;" href="#p1">outfile</a><span
style="font-family: monospace;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- Base
- name
- for
- output(.ti1)</span></small>
- <br>
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Base name for output(.ti1)</span></small> <br>
<h3>Usage Details and Discussion<br>
</h3>
The number of target patches needs to be chosen, depending on the
- media
- size, the type of device, and the quality of profile required. For
- an
- inkjet device, something like 3000 test points or more is desirable
- for high quality profiles, while 500-1000 will probably suffice for
- a
- medium quality profile. A few hundred may be sufficient for a
- preliminary profile. Well behaved printing devices (such as a
- chemical
- proof, or a high quality printing press) may produce good profiles
- with
- 1000 to 2000 test points. Well behaved RGB devices such as CRT
- monitors
- may need only a few
- hundred points, if a shaper/matrix type profile is to be produced,
- while pseudo RGB printers, or other RGB devices that a CLUT type
- profile may be used
+ media size, the type of device, and the quality of profile required.
+ For an inkjet device, something like 3000 test points or more is
+ desirable for high quality profiles, while 500-1000 will probably
+ suffice for a medium quality profile. A few hundred may be
+ sufficient for a preliminary profile. Well behaved printing devices
+ (such as a chemical proof, or a high quality printing press) may
+ produce good profiles with 1000 to 2000 test points. Well behaved
+ RGB devices such as CRT monitors may need only a few hundred points,
+ if a shaper/matrix type profile is to be produced, while pseudo RGB
+ printers, or other RGB devices that a CLUT type profile may be used
with, should probably choose somewhere between 500 and 3000 patches.
- For 'N' color profile creation,
- 3000 or more test points should probably be used.<br>
+ For 'N' color profile creation, 3000 or more test points should
+ probably be used.<br>
<br>
<a name="v"></a> The <b>-v</b> flag turns on extra verbosity when
generating patch values. Extra diagnostics and verbosity may be
available if a parameter is provided with a value greater than 1.<br>
<br>
<a name="d"></a> The <b>-d</b> parameter sets the colorspace the
- test
- values will be generated in. Video gray space is assumed to be an
- additive space, where a zero device value will be black, and a
- maximum
- device value will be white. A print gray space is assumed to be a
- subtractive space,
- in which a zero device value will be white, and a maximum device
- value
- will
- be black. If no colorspace is specified, subtractive CMYK is assumed
- as
- a default.<br>
+ test values will be generated in. Video gray space is assumed to be
+ an additive space, where a zero device value will be black, and a
+ maximum device value will be white. A print gray space is assumed to
+ be a subtractive space, in which a zero device value will be white,
+ and a maximum device value will be black. If no colorspace is
+ specified, subtractive CMYK is assumed as a default.<br>
<br>
<a name="D"></a> The <b>-D</b> parameter modifies the colorspace
- set
- by <span style="font-weight: bold;">-d</span> by allowing
- individual
- colorants to be added or subtracted from the colorspace.<br>
+ set by <span style="font-weight: bold;">-d</span> by allowing
+ individual colorants to be added or subtracted from the colorspace.<br>
<br>
<a name="G"></a> The <b>-G</b> flag changes the Incremental Far
- Point
- Distribution
- algorithm from fast to good mode. Fast mode uses a limited number of
- iterations to optimize the patch locations, while good mode strives
- for
- a more even patch distribution by using more iterations.<br>
+ Point Distribution algorithm from fast to good mode. Fast mode uses
+ a limited number of iterations to optimize the patch locations,
+ while good mode strives for a more even patch distribution by using
+ more iterations.<br>
<br>
The composition of the test patches is controlled by the following
flags and parameters:<br>
@@ -485,309 +970,286 @@ device
colored test patches, defaulting to 4 if the -e flag isn't used. The
white patches are usually very important in establishing white point
that the ICC data is made relative to, so it improves robustness to
- use
- more than a
- single point.<br>
+ use more than a single point.<br>
+ <br>
+ <a name="B"></a> The <b>-B</b> parameter sets the number of black
+ colored test patches, defaulting to 4 if the -B flag isn't used and
+ the colorspace is grey or RGB. The black point can be very important
+ for characterizing additive color spaces, so measuring more than one
+ black patch improves robustness over measuring just a single point.<br>
<br>
<a name="s"></a> The <b>-s</b> parameter sets the number of patches
in a set of per colorant wedges. The steps are evenly spaced in
- device
- space by default, and the total number of test patches will be the
- number of
- colorants
- times the value specified with the -s flag. If the <span
- style="font-weight: bold;">-p</span> parameter is provided, then,
- then the steps will be distributed according to the power value.
- e.g.
- the option <span style="font-weight: bold;">-s 5</span> will
- generate
- steps at 0.0 0.25 0.5 0.75 and 1.0, while the option <span
- style="font-weight: bold;">-s 5 -p 2.0</span> will generate steps
- at
- 0.0
- 0.0625 0.25 0.5625 and 1.0. By default, no per colorant
- test wedge values are generated. When creating a test chart for a
- device
- that will be used as a source colorspace, it is often useful to
- generated
- some per colorant wedge values.<br>
+ device space by default, and the total number of test patches will
+ be the number of colorants times the value specified with the -s
+ flag. If the <span style="font-weight: bold;">-p</span> parameter
+ is provided, then, then the steps will be distributed according to
+ the power value. e.g. the option <span style="font-weight: bold;">-s
+
+
+
+
+
+
+
+
+
+
+
+
+ 5</span> will generate steps at 0.0 0.25 0.5 0.75 and 1.0, while
+ the option <span style="font-weight: bold;">-s 5 -p 2.0</span> will
+ generate steps at 0.0 0.0625 0.25 0.5625 and 1.0. By default, no per
+ colorant test wedge values are generated. When creating a test chart
+ for a device that will be used as a source colorspace, it is often
+ useful to generated some per colorant wedge values.<br>
<br>
<a name="g"></a> The <b>-g</b> parameter sets the number of patches
in a set of combined (nominally gray) wedges. This will typically be
equal RGB or CMY values, and by default will be equally spaced steps
- in
- device
- space. If the <span style="font-weight: bold;">-p</span> parameter
- is
- provided, then,
- then the steps will be distributed according to the power value.
- e.g.
- the option <span style="font-weight: bold;">-g 5</span>
- will generate steps at 0.0 0.25 0.5 0.75 and 1.0, while the option <span
- style="font-weight: bold;">-g 5 -p 2.0</span> will generate steps
- at
- 0.0
- 0.0625 0.25 0.5625 and 1.0. By
- default, no gray combination values are generated. When creating a
- test
- chart for a device that will be used as a source colorspace, it is
- often
- useful to generated some per colorant wedge values.<br>
+ in device space. If the <span style="font-weight: bold;">-p</span>
+ parameter is provided, then, then the steps will be distributed
+ according to the power value. e.g. the option <span
+ style="font-weight: bold;">-g 5</span> will generate steps at 0.0
+ 0.25 0.5 0.75 and 1.0, while the option <span style="font-weight:
+ bold;">-g 5 -p 2.0</span> will generate steps at 0.0 0.0625 0.25
+ 0.5625 and 1.0. By default, no gray combination values are
+ generated. When creating a test chart for a device that will be used
+ as a source colorspace, it is often useful to generated some per
+ colorant wedge values.<br>
<br>
<a name="m"></a> The <b>-m</b> parameter sets the edge size of the
multidimensional grid of test values. The total number of patches of
this type will be the -m parameter value to the power of the number
- of
- colorants. The grid steps are evenly spaced in device space by
- default,
- but if the <span style="font-weight: bold;">-p</span> parameter is
- provided, then,
- then the steps will be distributed according to the power value.
- e.g.
- the option <span style="font-weight: bold;">-m 5</span>
- will generate steps at 0.0 0.25 0.5 0.75 and 1.0, while the option <span
- style="font-weight: bold;">-m 5 -p 2.0</span> will generate steps
- at
- 0.0
- 0.0625 0.25 0.5625 and 1.0. By
- default, all the device primary color combinations that fall within
- the
- ink limit are generated..<br>
- <br>
- The behavior of the <b>-e</b>, <b>-s</b>, <b>-g</b> and <b>-m</b>
- flags, is not to duplicate test values already created by a previous
- type.<br>
+ of colorants. The grid steps are evenly spaced in device space by
+ default, but if the <span style="font-weight: bold;">-p</span>
+ parameter is provided, then, then the steps will be distributed
+ according to the power value. e.g. the option <span
+ style="font-weight: bold;">-m 5</span> will generate steps at 0.0
+ 0.25 0.5 0.75 and 1.0, while the option <span style="font-weight:
+ bold;">-m 5 -p 2.0</span> will generate steps at 0.0 0.0625 0.25
+ 0.5625 and 1.0. By default, all the device primary color
+ combinations that fall within the ink limit are generated..<br>
+ <br>
+ <a name="m"></a> The <b>-b</b> parameter sets the outer edge size
+ of the multidimensional body centered grid of test values. The total
+ number of patches of this type will be the -b parameter value to the
+ power of the number of colorants plus the (number-1) to the power of
+ the number of colorants. The grid steps are evenly spaced in device
+ space by default, but if the <span style="font-weight: bold;">-p</span>
+ parameter is provided, then, then the steps will be distributed
+ according to the power value. A body centered grid is a regular grid
+ (see <b>-m</b>) with another smaller regular grid within it, at the
+ centers of the outer grid. This grid arrangement is more space
+ efficient than a regular grid (ie. for a given number of test
+ points, it fills the space better.)<br>
+ <br>
+ The behavior of the <b>-e</b>, <b>-s</b>, <b>-g</b> <b>-m </b>and
+
+
+
+
+
+
+
+
+
+
+
+
+ <b>-b</b> flags, is not to duplicate test values already created by
+ a previous type.<br>
<br>
<a name="f"></a> The <b>-f</b> parameter sets the number of full
spread test patches. Full spread patches are distributed according
- to
- the default or chosen algorithm. The default algorithm will optimize
- the point locations to minimize the distance from any point in
- device
- space, to the nearest
- sample point. This is called Optimized Farthest Point Sampling
- (OFPS) .
- This can be overridden by specifying the <b>-t. -r, -R,
- -q,
- -i or -I</b> flags. If the default OFPS algorithm is used, then
- adaptive
- test
- point distribution can be fully enabled by supplying a previous or
- typical profile with the <span style="font-weight: bold;">-c</span>
- option. The total number patches specified will
- include any
- patches
- generated using the <b>-e</b>, <b>-s</b>, <b>-g</b> and <b>-m</b>
- flags (i.e.
- full spread patches will be added to bring the total number of
- patches
- including
- those generated using the <b>-e</b>, <b>-s</b>, <b>-g</b> and <b>-m</b>
- flags
- up to the specified number). When there are more than four device
- channels,
- the full spread distribution algorithm can't deal with so many
- dimensions,
- and <b>targen</b> falls back on an incremental far point
- distribution
- algorithm
- by default, that doesn't generate such evenly spread points. This
- behaviour
- can be forced using the <b>-t</b> flag. A <a href="#Table">table</a>
- of useful total patch counts for different paper sizes is shown
- below.
+ to the default or chosen algorithm. The default algorithm will
+ optimize the point locations to minimize the distance from any point
+ in device space, to the nearest sample point. This is called
+ Optimized Farthest Point Sampling (OFPS) . This can be overridden by
+ specifying the <b>-t. -r, -R, -q, -i or -I</b> flags. If the
+ default OFPS algorithm is used, then adaptive test point
+ distribution can be fully enabled by supplying a previous or typical
+ profile with the <span style="font-weight: bold;">-c</span> option.
+ The total number patches specified will include any patches
+ generated using the <b>-e</b>, <b>-s</b>, <b>-g</b> <b>-m</b>
+ and <b>-b</b> flags (i.e. full spread patches will be added to
+ bring the total number of patches including those generated using
+ the <b>-e</b>, <b>-s</b>, <b>-g</b> <b>-m </b>and <b>-b</b>
+ flags up to the specified number). When there are more than four
+ device channels, the full spread distribution algorithm can't deal
+ with so many dimensions, and <b>targen</b> falls back on an
+ incremental far point distribution algorithm by default, that
+ doesn't generate such evenly spread points. This behaviour can be
+ forced using the <b>-t</b> flag. A <a href="#Table">table</a> of
+ useful total patch counts for different paper sizes is shown below.
Note that it's occasionally the case that the OFPS algorithm will
- fail
- to complete, or make very slow progress if the <span
+ fail to complete, or make very slow progress if the <span
style="font-weight: bold;">-c</span> profile is poor, non-smooth,
- or
- has unusual behaviour. In these cases a different algorithm should
- be
- chosen (ie. <span style="font-weight: bold;">-Q</span> or <span
- style="font-weight: bold;">-I</span>), or perhaps a smoother or
- lower
- resolution ("quality") previous profile may overcome the problem. <br>
+ or has unusual behaviour. In these cases a different algorithm
+ should be chosen (ie. <span style="font-weight: bold;">-Q</span> or
+ <span style="font-weight: bold;">-I</span>), or perhaps a smoother
+ or lower resolution ("quality") previous profile may overcome the
+ problem. <br>
<br>
<a name="t"></a> The <b>-t</b> flag overrides the default full
- spread
- test patch algorithm, and makes use of the Incremental Far Point
- Distribution
- algorithm, which incrementally searches for test points that are as
- far
- away
- as possible from any existing points. This is used as the default
- for
- dimensions
- higher than 4.<br>
+ spread test patch algorithm, and makes use of the Incremental Far
+ Point Distribution algorithm, which incrementally searches for test
+ points that are as far away as possible from any existing points.
+ This is used as the default for dimensions higher than 4.<br>
<br>
<a name="r"></a> The <b>-r</b> flag overrides the default full
- spread
- test patch algorithm, and chooses test points with an even random
- distribution in device space.<br>
+ spread test patch algorithm, and chooses test points with an even
+ random distribution in device space.<br>
<br>
<a name="R"></a> The <b>-R</b> flag overrides the default full
- spread
- test patch algorithm, and chooses test points with an even random
- distribution in perceptual space.<br>
+ spread test patch algorithm, and chooses test points with an even
+ random distribution in perceptual space.<br>
<br>
<a name="q"></a> The <b>-q</b> flag overrides the default full
- spread
- test patch algorithm, and chooses test points with a quasi-random,
- space filling distribution in device space.<br>
+ spread test patch algorithm, and chooses test points with a
+ quasi-random, space filling distribution in device space.<br>
<br>
<a name="Q"></a> The <b>-Q</b> flag overrides the default full
- spread
- test patch algorithm, and chooses test points with a quasi-random,
- space filling distribution in perceptual space.<br>
+ spread test patch algorithm, and chooses test points with a
+ quasi-random, space filling distribution in perceptual space.<br>
<br>
<a name="i"></a> The <b>-i</b> flag overrides the default full
- spread
- test patch algorithm, and chooses test points with body centered
- cubic
- distribution in device space.<br>
+ spread test patch algorithm, and chooses test points with body
+ centered cubic distribution in device space.<br>
<br>
<a name="I"></a> The <b>-I</b> flag overrides the default full
- spread
- test patch algorithm, and chooses test points with body centered
- cubic
- distribution in perceptual space.<br>
+ spread test patch algorithm, and chooses test points with body
+ centered cubic distribution in perceptual space.<br>
<br>
<a name="a"></a> The <b>-a <i>angle</i></b> parameter sets the
- overall
- angle that the body centered grid distribution has.<br>
+ overall angle that the body centered grid distribution has.<br>
<br>
<a name="A"></a> The <b>-A <i>adaptation</i></b> parameter sets
- the
- degree of adaptation to the known device characteristics, used by
- the
- default full spread OFPS algorithm. A profile
- should be provided using the <span style="font-weight: bold;">-c</span>
+ the degree of adaptation to the known device characteristics, used
+ by the default full spread OFPS algorithm. A profile should be
+ provided using the <span style="font-weight: bold;">-c</span>
parameter if <span style="font-weight: bold; font-style: italic;">adaptation</span>
- is set above a low level. By
- default the adaptation is 0.1 (low), and 1.0 (maximum) if <span
- style="font-weight: bold;">-c profile</span> is provided, but
- these
- defaults can be overridden using this option. For instance, if the <span
- style="font-weight: bold;">-c profile</span> doesn't represent the
- device behavior very well, a lower adaption than 1.0 might be
- appropriate.<br>
+ is set above a low level. By default the adaptation is 0.1 (low),
+ and 1.0 (maximum) if <span style="font-weight: bold;">-c profile</span>
+ is provided, but these defaults can be overridden using this option.
+ For instance, if the <span style="font-weight: bold;">-c profile</span>
+ doesn't represent the device behavior very well, a lower adaption
+ than 1.0 might be appropriate.<br>
<br>
<a name="l"></a> The <b>-l</b> flag and parameter sets a total ink
- limit (Total
- Area Coverage or TAC), which is adhered to for all the generated
- points. It is generally good practice to set a test chart ink limit
- at
- least 10% higher than the ink limit that will be applied when making
- the resulting profile. In the case of device cube points, this can
- generate extra test
- values that lie at the ink limit boundary. For gray wedge values,
- any
- that exceed the ink limit are omitted. Full spread test values are
- all
- generated to lie
- within the ink limit. Although it doesn't make much sense, this
- parameter has an affect on additive device spaces (such as RGB), but
- should not normally be used with such devices. The total ink limit
- value will be written to the
- .ti1 file, and carried through automatically to the .ti3 file, so
- that
- it
- can be used during profile creation. If a profile is provided using
- the
- <span style="font-weight: bold;">-c</span> flag, then this will be
- used
- to estimate an ink limit, if none is provided with the <span
- style="font-weight: bold;">-l</span> flag. Ink limits are, as far
- as
- possible, always in final calibrated device values, and the
- calibration
- curves from the profile provided to the <span style="font-weight:
- bold;">-c</span> flag will be used to estimate the
- equivalent limit in the underlying pre-calibration device space
- values
- that targen creates.<br>
+ limit (Total Area Coverage or TAC), which is adhered to for all the
+ generated points. It is generally good practice to set a test chart
+ ink limit at least 10% higher than the ink limit that will be
+ applied when making the resulting profile. In the case of device
+ cube points, this can generate extra test values that lie at the ink
+ limit boundary. For gray wedge values, any that exceed the ink limit
+ are omitted. Full spread test values are all generated to lie within
+ the ink limit. Although it doesn't make much sense, this parameter
+ has an affect on additive device spaces (such as RGB), but should
+ not normally be used with such devices. The total ink limit value
+ will be written to the .ti1 file, and carried through automatically
+ to the .ti3 file, so that it can be used during profile creation. If
+ a profile is provided using the <span style="font-weight: bold;">-c</span>
+ flag, then this will be used to estimate an ink limit, if none is
+ provided with the <span style="font-weight: bold;">-l</span> flag.
+ Ink limits are, as far as possible, always in final calibrated
+ device values, and the calibration curves from the profile provided
+ to the <span style="font-weight: bold;">-c</span> flag will be used
+ to estimate the equivalent limit in the underlying pre-calibration
+ device space values that targen creates.<br>
<br>
<a name="p"></a> The <b>-p</b> flag and parameter sets a power-like
- value
- applied to all of the device values after they are generated, <span
- style="font-weight: bold;"></span><span style="font-weight: bold;"></span>the
-spacer
-colors.
-This
-can
-be
-useful
-in
- creating calibration charts for
- very non-linearly behaved devices. A value greater than 1.0 will
- cause
- a tighter spacing of test values near device value 0.0, while a
- value
- less than 1.0 will cause a tighter spacing near device value 1.0. <span
- style="font-weight: bold;">printcal</span> will recommend a
- power-like
- value if the verbose option is used. [ <span style="font-weight:
- bold;">Note</span>
- that for Print RGB space this
- is reversed, since internally a Print RGB space is treated as a CMY
- space. ]. <span style="font-weight: bold;">Note</span> that the
- device
- model used to create the expected patch values will not take into
- account the applied power, nor will the more complex full spread
- algorithms correctly take into account the power in generating
- values
- up to the ink limits. (A power-like function is used, to avoid the
- excessive compression that a real power function would apply).<br>
+ value applied to all of the device values after they are generated,
+ <span style="font-weight: bold;"></span><span style="font-weight:
+ bold;"></span>the spacer colors. This can be useful in creating
+ calibration charts for very non-linearly behaved devices. A value
+ greater than 1.0 will cause a tighter spacing of test values near
+ device value 0.0, while a value less than 1.0 will cause a tighter
+ spacing near device value 1.0. <span style="font-weight: bold;">printcal</span>
+ will recommend a power-like value if the verbose option is used. [ <span
+ style="font-weight: bold;">Note</span> that for Print RGB space
+ this is reversed, since internally a Print RGB space is treated as a
+ CMY space. ]. <span style="font-weight: bold;">Note</span> that the
+ device model used to create the expected patch values will not take
+ into account the applied power, nor will the more complex full
+ spread algorithms correctly take into account the power in
+ generating values up to the ink limits. (A power-like function is
+ used, to avoid the excessive compression that a real power function
+ would apply).<br>
<br>
<a name="c"></a> The <b>-c</b> flag and parameter is used to
- specify
- an <a href="File_Formats.html#ICC">ICC</a> or <a
+ specify an <a href="File_Formats.html#ICC">ICC</a> or <a
href="File_Formats.html#MPP">MPP</a> pre-conditioning profile, for
estimating perceptual distances and colorspace curvature, used in
optimizing the full spread test point placement,or in creating
- perceptualy spaced distributions. Normally a previous
- profile for this or a similar device will be used, or a simpler,
- preliminary profile will be created and used. If no such profile is
- specified, a default device space model is used. Note that this
- will only have an effect if an algorithm that uses perceptual
- placement (such as <span style="font-weight: bold;">-R, -Q, -I</span>
- or the default OFPS with an
- <span style="font-weight: bold;">-A</span> value &gt; 0.0) is being
- used.<br>
- <br>
- <a name="N"></a> The <b>-N emphasis</b> parameter allows changing
- the
- degree to which the patch distribution should emphasise the neutral
- axis. Since the neutral axis is regarded as the most visually
- critical
- are of the color space, it can help maximize the quality of the
- resulting profile to place more measurement patches in this region.
- This emphasis is only effective for perceptual patch distributions,
- and
- for the default OFPS distribution if the <a href="#A">adaptation</a>
- parameter is set to a high value. It is also most effective when a <a
- href="#c">pre-conditioning</a> profile is provided, since this is
- the
- only way that neutral can be determined. The default value of 0.5
- provides an affect about twice the emphasis of the CIE94 Delta E
- formula.<br>
+ perceptualy spaced distributions. Normally a previous profile for
+ this or a similar device will be used, or a simpler, preliminary
+ profile will be created and used. If no such profile is specified, a
+ default device space model is used. Note that this will only have an
+ effect if an algorithm that uses perceptual placement (such as <span
+ style="font-weight: bold;">-R, -Q, -I</span> or the default OFPS
+ with an <span style="font-weight: bold;">-A</span> value &gt; 0.0)
+ is being used.<br>
+ <br>
+ <a name="N"></a> The <b>-N nemphasis</b> parameter allows changing
+ the degree to which the patch distribution should emphasise the
+ neutral axis. Since the neutral axis is regarded as the most
+ visually critical are of the color space, it can help maximize the
+ quality of the resulting profile to place more measurement patches
+ in this region. This emphasis is only effective for perceptual patch
+ distributions, and for the default OFPS distribution if the <a
+ href="#A">adaptation</a> parameter is set to a high value. It is
+ also most effective when a <a href="#c">pre-conditioning</a>
+ profile is provided, since this is the only way that neutral can be
+ determined. The default value of 0.5 provides an affect about twice
+ the emphasis of the CIE94 Delta E formula.<br>
+ <br>
+ <a name="V"></a> The <b>-V demphasis</b> parameter allows changing
+ the degree to which the patch distribution should emphasis dark
+ region of the device response. Display devices used for video or
+ film reproduction are typically viewed in dark viewing environments
+ with no strong white reference, and typically employ a range of
+ brightness levels in different scenes. This often means that the
+ devices dark region response is of particular importance, so
+ increasing the relative number of sample points in the dark region
+ may improved the balance of accuracy of the resulting profile for
+ video or film reproduction. This emphasis is only effective for
+ perceptual patch distributions where a <a href="targen.html#c">pre-conditioning</a>
+ profile is provided. The default value of 1.0 provides no emphasis
+ of the dark regions. A value somewhere around <b>1.5 - 2.0</b> is a
+ good place to start for video profile use. A scaled down version of
+ the -V parameter will be passed on through the .ti3 file to colprof
+ where it will set a default value for the corresponding <a
+ href="colprof.html#V">colprof -V</a> parameter.&nbsp; Note that
+ increasing the proportion of dark patches will typically lengthen
+ the time that an instrument takes to read the whole chart.
+ Emphasizing the dark region characterization will reduce the
+ accuracy of measuring and modelling the lighter regions, given a
+ fixed number of test points and profile quality/grid resolution. The
+ parameter will also be used in an analogous way to the <small><a
+ href="file:///D:/src/argyll/doc/targen.html#p">-p power</a>
+ value in changing the distribution of </small><small><a
+ href="file:///D:/src/argyll/doc/targen.html#s">-s steps</a>, </small><small><a
+ href="file:///D:/src/argyll/doc/targen.html#g">-g steps</a>, </small><small><a
+ href="file:///D:/src/argyll/doc/targen.html#m">-m steps</a></small>
+ and <small><small><a href="file:///D:/src/argyll/doc/targen.html#b">-b
+
+
+
+ steps</a></small></small> patches.<br>
<br>
<a name="F"></a> The <b>-F</b> flag and parameters is used to
- define
- an L*a*b* sphere to filter the test points through. Only test points
- within the sphere (defined by it's center and radius) will be
- written
- to the .ti1 file. This can be good for targeting supplemental test
- points at a troublesome area of a device. The accuracy of the L*a*b*
- target will be best when the <span style="font-weight: bold;">-c</span>
- option is used to specify a reasonably accurate profile for the
- device.
- Note that the actual number of points generated can be hard to
- predict,
- and will depend on the type of generation used. All means of
- generating
- points except the -f N &amp; -r, -R and -q will generate a smaller
- number of test points than expected. If the -f N &amp; -r, -R and -q
+ define an L*a*b* sphere to filter the test points through. Only test
+ points within the sphere (defined by it's center and radius) will be
+ written to the .ti1 file. This can be good for targeting
+ supplemental test points at a troublesome area of a device. The
+ accuracy of the L*a*b* target will be best when the <span
+ style="font-weight: bold;">-c</span> option is used to specify a
+ reasonably accurate profile for the device. Note that the actual
+ number of points generated can be hard to predict, and will depend
+ on the type of generation used. All means of generating points
+ except the -f N &amp; -r, -R and -q will generate a smaller number
+ of test points than expected. If the -f N &amp; -r, -R and -q
methods are used, then the target number of points will be achieved.
For this reason, the -f N -q method is probably the easiest to use.<br>
<br>
@@ -798,35 +1260,29 @@ in
strange, since the extra K dimension is compressed into the 3
dimensional L*a*b* space. <a name="W"></a>If the <span
style="font-weight: bold;">-W</span> flag is given, the plot will
- be
- in device space, with only the first 3 dimensions of each point
- being
- plotted.<br>
+ be in device space, with only the first 3 dimensions of each point
+ being plotted.<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> output
- file. <b>targen</b> will add the .ti1 extension automatically.<br>
+ base filename for the <a href="File_Formats.html#.ti1">.ti1</a>
+ output file. <b>targen</b> will add the .ti1 extension
+ automatically.<br>
<br>
Some typical total patch number/paper size combinations are shown
below. These "magic" numbers are found by using <a
href="printtarg.html">printtarg</a> to compute the row length and
number of rows, and then adjusting the total number of patches to
- fill
- the last row or paper size, in an iterative fashion.<br>
+ fill the last row or paper size, in a trial and error fashion.<br>
<br>
<a name="Table"></a> &nbsp;&nbsp; &nbsp; Size (mm/Standard Name),
- &nbsp;
- No. Patches<br>
+ &nbsp; No. Patches<br>
<br>
DTP20:<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x A4&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; 540<br>
&nbsp; &nbsp; &nbsp; 2 x A4 &nbsp; &nbsp; &nbsp; 1080<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp; 1620<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4&nbsp; &nbsp;
- &nbsp;&nbsp; 2160<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; 1620<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4&nbsp; &nbsp; &nbsp;&nbsp; 2160<br>
<br>
&nbsp;&nbsp;&nbsp; &nbsp; 1 x Letter &nbsp;&nbsp; 570<br>
&nbsp; &nbsp; &nbsp; 2 x Letter&nbsp;&nbsp; 1140<br>
@@ -844,41 +1300,27 @@ in
&nbsp; DTP41:<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x A4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;
- &nbsp;
- &nbsp; &nbsp; 375<br>
+ &nbsp; &nbsp; &nbsp; &nbsp; 375<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2 x A4 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp; &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp; 750<br>
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; 750<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3 x A4 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp; &nbsp;
- &nbsp;
- &nbsp;&nbsp; 1125<br>
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 1125<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4 x A4 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp; &nbsp;
- &nbsp;
- &nbsp;&nbsp; 1500<br>
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 1500<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;
- &nbsp; 345<br>
+ &nbsp; &nbsp; 345<br>
&nbsp; &nbsp; &nbsp; 2 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;&nbsp;
- 690<br>
+ &nbsp;&nbsp;&nbsp; 690<br>
&nbsp; &nbsp; &nbsp; 3 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;
- 1035<br>
+ &nbsp;&nbsp; 1035<br>
&nbsp; &nbsp; &nbsp; 4 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;
- 1380<br>
+ &nbsp;&nbsp; 1380<br>
<br>
&nbsp;&nbsp; &nbsp;&nbsp; 1 x A3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 836<br>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 836<br>
&nbsp;&nbsp; &nbsp;&nbsp; 2 x A3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1672<br>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1672<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x 11x17 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp;&nbsp; 780<br>
@@ -889,55 +1331,41 @@ in
&nbsp; DTP51:<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x A4 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp; 266<br>
+ &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; 266<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2 x A4 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp; &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp; 532<br>
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; 532<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3 x A4 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp; &nbsp;
- &nbsp;
- &nbsp;&nbsp;&nbsp; 798<br>
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp; 798<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4 x A4 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp; &nbsp;
- &nbsp;
- &nbsp;&nbsp; 1064<br>
+ &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 1064<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;
- 252<br>
+ &nbsp;&nbsp; 252<br>
&nbsp; &nbsp; &nbsp; 2 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;
- 504<br>
+ &nbsp;&nbsp; 504<br>
&nbsp; &nbsp; &nbsp; 3 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;
- 756<br>
+ &nbsp;&nbsp; 756<br>
&nbsp; &nbsp; &nbsp; 4 x Letter &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; 1008<br>
<br>
&nbsp;&nbsp; &nbsp;&nbsp; 1 x A3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 580<br>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 580<br>
&nbsp;&nbsp; &nbsp;&nbsp; 2 x A3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp;
- &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 1160<br>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 1160<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x 11x17 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
&nbsp; 570<br>
&nbsp; &nbsp; &nbsp; 2 x 11x17 &nbsp; &nbsp; &nbsp; &nbsp;
- &nbsp;&nbsp;
- 1140<br>
+ &nbsp;&nbsp; 1140<br>
<br>
&nbsp; SpectroScan with square patches:<br>
<br>
&nbsp; &nbsp; &nbsp; 1 x A4R&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; 1014<br>
&nbsp; &nbsp; &nbsp; 2 x A4R &nbsp; &nbsp; &nbsp; 2028<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4R&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp; 3042<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4R&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp; 4056<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4R&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
+ 3042<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4R&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;
+ 4056<br>
<br>
&nbsp;&nbsp;&nbsp; &nbsp; 1 x LetterR &nbsp;&nbsp; 999<br>
&nbsp; &nbsp; &nbsp; 2 x LetterR&nbsp;&nbsp; 1998<br>
@@ -948,10 +1376,10 @@ in
<br>
&nbsp; &nbsp; &nbsp; 1 x A4R&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; 1170<br>
&nbsp; &nbsp; &nbsp; 2 x A4R &nbsp; &nbsp; &nbsp; 2340<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4R&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp; 3510<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4R&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp; 4680<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4R&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;
+ 3510<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4R&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;
+ 4680<br>
<br>
&nbsp;&nbsp;&nbsp; &nbsp; 1 x LetterR&nbsp;&nbsp; 1092<br>
&nbsp; &nbsp; &nbsp; 2 x LetterR&nbsp;&nbsp; 2184<br>
@@ -962,10 +1390,8 @@ in
<br>
&nbsp; &nbsp; &nbsp; 1 x A4&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; 441<br>
&nbsp; &nbsp; &nbsp; 2 x A4 &nbsp; &nbsp; &nbsp;&nbsp; 882<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4&nbsp;&nbsp;&nbsp;&nbsp;
- &nbsp; 1323<br>
- &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4&nbsp;&nbsp;&nbsp;
- &nbsp;&nbsp; 1764<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 3 x A4&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; 1323<br>
+ &nbsp;&nbsp; &nbsp;&nbsp; 4 x A4&nbsp;&nbsp;&nbsp; &nbsp;&nbsp; 1764<br>
<br>
&nbsp;&nbsp;&nbsp; &nbsp; 1 x Letter &nbsp;&nbsp; 462<br>
&nbsp; &nbsp; &nbsp; 2 x Letter&nbsp;&nbsp;&nbsp; 924<br>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 22:25:14 +0000