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diff --git a/doc/ccxxmake.html b/doc/ccxxmake.html new file mode 100644 index 0000000..c4d8059 --- /dev/null +++ b/doc/ccxxmake.html @@ -0,0 +1,954 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html> + <head> + <title>ccxxmake</title> + <meta http-equiv="content-type" content="text/html; + charset=ISO-8859-1"> + <meta name="author" content="Graeme Gill"> + </head> + <body> + <h2><b>spectro/ccxxmake</b></h2> + <h3>Summary</h3> + For Colorimeters that rely on a calibration matrix, <span + style="font-weight: bold;">ccxxmake</span> allows creation of a + correction matrix file (<a href="File_Formats.html#.ccmx">ccmx</a>) + for a particular <span style="font-weight: bold;">Colorimeter & + Display</span> combination, by making use a reference <span + style="font-weight: bold;">Spectrometer</span> or Colorimeter + instrument. This can then be used to improve the accuracy of + subsequent measurements with that Colorimeter on that Display by + using it with the <a href="dispcal.html#X">dispcal</a>, <a + href="dispread.html#X">dispread</a> and <a href="spotread.html#X">spotread</a> + -X option. A ccmx file can also be <a href="oeminst.html">installed</a>, + and will then appear in the available display type selection (<b>-y</b> + option). See <a href="WideGamutColmters.html">Wide Gamut Displays + and Colorimeters</a> for more information on why this may be + useful. [ <span style="font-weight: bold;">Note</span> that to make + use of a <u>colorimeter</u> as a CCMX reference, you will have to + provide two .ti3 files rather than using interactive measurement- + see <a href="#f"><span style="font-weight: bold;">-f</span></a>. ]<br> + <br> + For Colorimeters that have sensor spectral sensitivity calibration + information built into them (ie. the X-Rite <span + style="font-weight: bold;">i1d3</span>, and<span + style="font-weight: bold;"><span style="font-weight: bold;"></span></span> + DataColor <span style="font-weight: bold;">Spyder4</span>), <span + style="font-weight: bold;">ccxxmake</span> allows a creation of a + calibration spectral sample (<a href="File_Formats.html#.ccss">ccss</a>) + for a particular <span style="font-weight: bold;">Display</span>, + by making use a reference <span style="font-weight: bold;">Spectrometer</span> + instrument. This can then be used to improve the accuracy of + subsequent measurements on that Display using such Colorimeters, by + using it with the <a href="dispcal.html#X">dispcal</a>, <a + href="dispread.html#X">dispread</a> and <a href="spotread.html#X">spotread</a> + -X option, or it can be <a + href="file:///D:/src/argyll/doc/oeminst.html">installed</a>, and + will then appear in the available display type selection (<b>-y</b> + option).<br> + <br> + The instrument manufacturer may supply spectral sample files (see <a + href="oeminst.html">oeminst</a>).<br> + <br> + There is a <a href="ccmxs.html">list of contributed</a> <span + style="font-weight: bold;">ccmx</span> (Colorimeter Correction + Matrix) files.<br> + <h3>Usage Summary</h3> + <small style="font-family: monospace;">ccxxmake [-options] + correction.ccmx<br> + </small><small style="font-family: monospace;"> <a href="#v">-v</a> + + + + + + + + + + + + + + Verbose mode</small><br> + <a href="#S">-S</a> +Create +CCSS +rather + + + + + + + + + + + + + + than CCMX<br> + <a href="#f">-f file1.ti3[,file2.ti3]</a> + +Create +from +one +or +two + + + + + + + + + + + + + + .ti3 files rather than measure.<br style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><font + style="font-family: monospace;" size="-1"><a href="#display">-display + + + + + + + + + + + + + + displayname</a> [X11 only] Choose X11 display name</font><br + style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"></font><font + style="font-family: monospace;" size="-1"> <a href="#dnm">-d + n[,m]</a> + + [X11 only] Choose the display from the following list (default 1),</font><br + style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> +and +optionally +choose +a +different +display +m + + + + + + + + + + + + + + for VideoLUT access.</font><br style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> <a href="#d">-d + + + + + + + + + + + + + + n</a> +Choose +the +display +from +the +following +list + + + + + + + + + + + + + + (default 1)</font><br> + <span style="font-family: monospace;"> <a href="#dweb">-dweb[:port]</a> + + + + + + + + + + + + + + + + + + Display via a web server at port (default 8080)</span><br + style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> </font><font + style="font-family: monospace;" size="-1"><a href="#p">-p</a> + + + + + + + + + + + + + + Use telephoto mode (ie. for a projector) (if available)</font><br + style="font-family: monospace;"> + <font size="-1"><span style="font-family: monospace;"><a + href="#y">-y X</a> + + + + + + + + + + + + + + + + Display type - instrument specific list to choose from.</span></font><font + style="font-family: monospace;" size="-1"> (CCMX)</font><br + style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> <a href="#P">-P + + + + + + + + + + + + + + ho,vo,ss[,vs]</a> Position test + window and scale it</font><br style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> +ho,vi: +0.0 += +left/top, +0.5 += +center, + + + + + + + + + + + + + + 1.0 = right/bottom etc.</font><br style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> +ss: +0.5 += +half, +1.0 += +normal, + + + + + + + + + + + + + + 2.0 = double etc.</font><br> + <font size="-1"><span style="font-family: monospace;"> + + + + + + + + ss,vs: = optional horizontal, vertical scale.</span></font><br + style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> </font><font + style="font-family: monospace;" size="-1"><a href="#F">-F</a> + + + + + + + + + + + + + + + Fill whole screen with black background</font><br + style="font-family: monospace;"> + <small style="font-family: monospace;"> <span + style="text-decoration: underline;"></span><a href="#n">-n</a> + +[X11 +only] +Don't +set +override +redirect +on + + + + + + + + + + + + + + test window<br> + </small><font style="font-family: monospace;" size="-1"> <a + href="#N">-N</a> + + + + + + + + + + + + + + Disable initial calibration of instrument</font><small + style="font-family: monospace;"> if possible<br> + </small><span style="font-family: monospace;"> </span><font + style="font-family: monospace;" size="-1"><a href="#H">-H</a> + + + + + + + + + + + + + + + Use high resolution spectrum mode (if available)</font><font + style="font-family: monospace;" size="-1"></font><br + style="font-family: monospace;"> + <font style="font-family: monospace;" size="-1"> <a href="#C">-C + + + + + + + + + + + + + + "command"</a> + Invoke shell "command" each time a color is set<br> + </font><small style="font-family: monospace;"> <a href="#o">-o + <i>observ</i></a> + Choose CIE Observer for CCMX spectral + data:<br> + + 1931_2 </small><small + style="font-family: monospace;"> (def.)</small><small + style="font-family: monospace;">, 1964_10, S&B 1955_2, shaw, + J&V 1978_2<br> + </small><font style="font-family: monospace;" size="-1"> <a + href="#s">-s steps</a> +Override +default +patch +sequence + + + + + + + + + + + + + + combination steps (default 3)</font><br style="font-family: + monospace;"> + <font style="font-family: monospace;" size="-1"> <a href="#W">-W + + + + + + + + + + + + + + n|h|x</a> +Override +serial +port +flow +control: +n += + + + + + + + + + + + + + + none, h = HW, x = Xon/Xoff</font><br style="font-family: + monospace;"> + <small style="font-family: monospace;"> <a href="#D">-D [level]</a> + Print + debug diagnostics to stderr<br> + </small><small style="font-family: monospace;"> <a + href="ccxxmake.html#E">-E "description"</a> +Override +the +default +overall + + + + + + + + + + + + + + escription</small><br> + <small style="font-family: monospace;"> <a href="#I">-I + "displayname"</a> </small><span + style="font-family: monospace;">Set display make and model + description</span><small style="font-family: monospace;"><br> + </small><small style="font-family: monospace;"><a href="#T">-T + + + + + + + + + + + + + + "displaytech"</a> </small><span + style="font-family: monospace;">Set display technology description</span> + (ie. CRT, LCD etc.)<small style="font-family: monospace;"></small><br> + <tt> <a href="#U">-U c</a> + + Set UI selection character(s)</tt><br> + <font size="-1"><span style="font-family: monospace;"> </span><a + style=" font-family: monospace;" href="#Yrn">-<font size="-1">Y</font> + r|n</a><span style="font-family: monospace;"> + + + + + + + + + + Override refresh, non-refresh display + mode</span></font><br> + <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;"> + + Use non-adaptive integration time mode + (if available).</span></font><br style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><font + style="font-family: monospace;" size="-1"><a href="#file1"><span + style="font-style: italic;">correction.ccmx</span></a> | <a + href="#file2"></a></font><font style="font-family: monospace;" + size="-1"><a href="ccxxmake.html#file2">calibration.ccss</a></font><font + style="font-family: monospace;" size="-1"><br> + + File to save result to.</font><br> + <h3>Usage Details and Discussion</h3> + <a name="v"></a>The <b>-v</b> flag causes extra information to be + printed out during chartread operation.<br> + <br> + <a name="S"></a><span style="font-weight: bold;">-S</span> By + default a Colorimeter Correction Matrix (<span style="font-weight: + bold;">CCMX</span>) will be created from both <span + style="font-weight: bold;">Colorimeter</span> and <span + style="font-weight: bold;">Spectrometer</span> readings, which + allows correction for errors with a particular Colorimeter and + Display combination. If the <span style="font-weight: bold;">-S</span> + flag is used, then instead a Colorimeter Calibration Spectral Set (<span + style="font-weight: bold;">CCSS</span>) file is created from just + the <span style="font-weight: bold;">Spectrometer</span> readings, + that allows calibrating any suitable Colorimeter to the Display.<br> + <br> + <a name="f"></a><span style="font-weight: bold;">-f <span + style="font-style: italic;">file1.ti3[,file2.ti3]</span></span> + By <span style="text-decoration: underline;">default</span> <span + style="font-weight: bold;">ccxxmake</span> creates a <span + style="font-weight: bold;">CCMX</span> file by displaying test + patches on the screen, and then prompting you to measure them + interactively with the two instruments. An alternative is to create + a small number of test values using <span style="font-weight: + bold;">targen</span> suitable for display profiling (or use the <span + style="font-weight: bold;">ref/ccxx.ti1</span> file provided with + ArgyllCMS), and then measure them with the two instruments using <span + style="font-weight: bold;">dispread</span> to create a reference + and target .ti3 files, and then provide the two files as arguments + to <span style="font-weight: bold;">ccxxmake -f</span>. Normally + the reference file will be created using a spectral instrument and + you will want to use the <span style="font-weight: bold;">-s</span> + flag with dispread for this. If you want to use a colorimeter as a + reference instrument, then make sure that it is the first file + provided to the ccxxmake <span style="font-weight: bold;">-f</span> + option. The filenames should be concatenated with a <span + style="font-weight: bold;">","</span> separator without spaces. + You will also have to supply a display name using the <span + style="font-weight: bold;">-I</span> option and/or technology + description using <span style="font-weight: bold;">-T</span>.<br> + When creating a <span style="font-weight: bold;">CCSS</span> file, + only spectral readings from the display measured with the reference + instrument are needed, and a single <span style="font-weight: + bold;">.ti3</span> file should be provided.<br> + <br> + <a name="display"></a>When running on a UNIX based system that used + the X11 Windowing System, <b>ccxxmake</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> 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 <b>ccxxmake</b> + so as to display the usage information (i.e. "dispcal -?" or + "dispcal --"), 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 + parameter.<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 + + + + + + + + + + + + + + 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.<br> + <br> + <span style="font-weight: bold;"><a name="dweb"></a>-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.<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 used as a base for color + correction matrix CCMX creation. Only base calibration display types + will be listed. 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 internal 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>. Any CCMX created will work on top of + the selected Display Type, so to be valid, the same Display Type + must be selected whenever the CCMX is used with this instrument. + Installed CCMX files will automatically select the appropriate base + type.<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="n"></a><span style="font-weight: bold;">-n</span> When + running on a UNIX based system that used the X11 Windowing System, <b>dispcal</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="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="L"></a> The -<span style="font-weight: bold;">H</span> + option on high resolution spectral mode, if the instrument supports + it, such as the Eye-One Pro. 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="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 dispcal (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="o"></a> (CCMX creation) The <b>-o</b> flag allows + specifying a tristimulus observer, and is used to compute + tristimulus values from spectral readings. The following + choices are available:<br> + <b> 1931_2</b> selects the standard CIE 1931 2 degree + observer. The default.<br> + <b>1964_10</b> selects the standard CIE 1964 10 degree + observer.<br> + <b>1955_2</b> selects the Stiles and Birch 1955 2 degree + observer<br> + <b>1978_2 </b>selects the Judd and Voss 1978 2 degree + observer<br> + <b>shaw</b> selects the Shaw and Fairchild 1997 2 degree + observer<br> + <br> + <a name="s"></a>The <b>-s steps</b><span style="font-weight: bold;"></span> + parameter overrides the default number of test patch combination + steps used in measuring a colorimeter & display combination.<span + style="font-weight: bold;"></span><span style="font-weight: bold;"></span><span + style="font-weight: bold;"></span> The steps are those out + of every combination of R,G & B values of the given number of + steps that have at least one colorant at 100%. So 2 steps gives 7 + test patches, 3 gives 19, 4 gives 37, 5 gives 61, 6 gives 91 etc. + Note that typically this won't make much difference to the resulting + calibration, since it depends primarily on the underlying spectral + characteristics of the display.<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="E"></a>The <b>-E</b> parameter allows overriding the <span + style="font-weight: bold;">ccmx/ccss</span> files overall + description tag. Normally this is not necessary. With most command + line shells, it will be necessary to enclose the parameter with + double quotes, so that spaces and other special characters are + included in the parameter, and not mistaken for the start of another + flag, or as a final command line parameter. <br> + <br> + <a name="I"></a>The <b>-I</b> parameter allows setting of the + display description string in the resulting <span + style="font-weight: bold;">ccmx/ccss</span> file. Since the + default display description is probably very generic, it is <span + style="font-weight: bold;">highly recommended</span> that a + description of the make and model of the display be provided here, + or set a display technology description using <span + style="font-weight: bold;">-T</span> (see below). The default or + given display description will be printed before the menu. With most + command line shells, it will be necessary to enclose the parameter + with double quotes, so that spaces and other special characters are + included in the parameter, and not mistaken for the start of another + flag, or as a final command line parameters.<br> + <br> + <a name="T"></a>The <b>-T</b> parameter allows setting of the + display technology description string in the resulting <span + style="font-weight: bold;">ccmx/ccss</span> file. The + applicability of the calibration mainly depends on the technology + type of the display, so a description of the technology (ie. "CRT", + "LCD", "LCD + backlight type + LCD type", etc.) is <span + style="font-weight: bold;">highly recommended</span>, because it + can make the calibration more widely usable. With most command line + shells, it will be necessary to enclose the parameter with double + quotes, so that spaces and other special characters are included in + the parameter, and not mistaken for the start of another flag, or as + a final command line parameters.<br> + <br> + <a name="U"></a>The <b>-U</b> parameter allows setting of the user + interface selection character this display type can be selected by, + if installed. This character will only be used if there is no clash + with any preceding selections. Characters in the range 0-9, A-Z a-z + can be used.<br> + <br> + <a name="Yrn"></a>The -<span style="font-weight: bold;">Y r </span>and + + + + + + + + + <b>-Y n</b> options overrides the refresh display mode set by the <a + href="file:///D:/src/argyll/doc/spotread.html#y">-y display type + selection</a>, with <b>-Y</b><span style="font-weight: bold;"> r</span> + forcing refresh display mode, and <b>-Y n</b> forcing a non-refresh + display mode. Not all instruments support a display measurement + refresh mode, or the ability to override the mode set by the display + type selection.<br> + <br> + <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="file1"></a>The <span style="font-weight: bold; font-style: + italic;">correction.ccmx</span> is the name of the file to save + the resulting <a href="File_Formats.html#.ccmx">Colorimeter + Correction Matrix</a> to. It is best to give it a short but + informative name that includes the Colorimeter model and the display + make and model. By convention it should have a <span + style="font-weight: bold;">.ccmx</span> file extension.<br> + <br> + <a name="file2"></a>The <span style="font-weight: bold; font-style: + italic;">correction.ccss</span> is the name of the file to save + the resulting <a href="File_Formats.html#.ccss">Colorimeter + Calibration Spectral Samples</a> to. It is best to give it a short + but informative name that includes the display technology or model. + By convention it should have a <span style="font-weight: bold;">.ccss</span> + file extension.<br> + <br> + If you are going to use the same CCMX or CCSS file all the time, + then you may want to set the <a href="Environment.html">ARGYLL_COLMTER_CAL_SPEC_SET</a> + environment variable.<br> + <br> + <hr style="width: 100%; height: 2px;"> + <h3>Instrument Communications:</h3> + Unlike the other measurement utilities,<span style="font-weight: + bold;"> ccxxmake</span> doesn't connect to the instrument until it + is about to make a measurement. This allows for the possibility of + using a different instrument for each measurement.<br> + <br> + It will display a menu:<span style="font-style: italic;"></span><br> + <br> + Press 1 .. 4:<br> + 1) Select an instrument, Currently 1 'usb:/bus4/dev2/ (GretagMacbeth + i1 Pro)'<br> + 2) Measure test patches with current instrument<br> + 3) [ Compute Colorimeter Correction Matrix & save it ]<br> + 4) Exit<br> + <br> + For creating a CCMX there are two measurements to be made, after + which the correction matrix can be computed and saved. Before each + measurement, the instrument may need calibrating. For creating a + CCSS a single measurement is needed.<br> + <br> + A spectral measurement using a spectral instrument is always + needed.<br> + <br> + A measurement using the Colorimeter that the correction matrix + is being created for is needed in the case of creating a CCMX, but <span + style="font-weight: bold;">not</span> needed when creating a CCSS.<br> + <br> + There will be a message before the menu indicating which of the + measurements has been completed.<br> + <br> + <hr style="width: 100%; height: 2px;"> + <h4>Display Setup:</h4> + Because ccmx/ccss is measuring spectral matching, the exact levels + of each channel is not important, so the display settings or + calibration state shouldn't make any difference to the result, as + long as it is the same for the readings of both instruments. + Similarly, the number and variety of test patches shouldn't make a + huge difference, as long as there is at least Red, Green, Blue and + White test patches.<br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + </body> +</html> |