1025 lines
40 KiB
HTML
Executable File
1025 lines
40 KiB
HTML
Executable File
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta content="text/html; charset=windows-1252" http-equiv="content-type">
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<title>targen</title>
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<meta name="author" content="Graeme Gill">
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</head>
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<body>
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<h2><b>target/targen</b></h2>
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<h3>Summary</h3>
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Generate a profiling test target values <a href="File_Formats.html#.ti1">.ti1</a>
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file. <b>targen</b> is used to generate the device channel test point
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values for grayscale, RGB, CMY, CMYK or N-color output or display devices. <br>
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<br>
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[ Note though that colprof will only create RGB, CMY or CMYK profiles. ]<br>
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<h3>Usage Summary</h3>
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<p><span style="font-family: monospace;">targen [options] <i>outfile</i><br>
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<a href="#v">-v [level]</a> Verbose mode [optional
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verbose level, 1..n]<br>
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<a href="#d">-d col_comb</a> choose colorant combination
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from the following:<br>
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0:
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Print
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grey<br>
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1:
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Video
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grey<br>
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2:
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Print
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RGB<br>
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3:
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Video
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RGB<br>
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4:
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CMYK<br>
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5:
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CMY<br>
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6:
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CMYK
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+ Light CM<br>
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7:
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CMYK
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+ Light CMK<br>
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8:
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CMYK
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+ Red + Blue<br>
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9:
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CMYK
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+ Orange + Green<br>
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10:
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CMYK
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+ Red + Green + Blue<br>
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11:
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CMYK
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+ Orange + Green + Violet<br>
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12:
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CMYK
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+ Orange + Green + Blue<br>
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13:
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CMYK
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+ Light CMK + Light Light K<br>
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14:
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CMYK
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+ Orange + Green + Light CM<br>
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15:
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CMYK
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+ Light CM + Medium CM<br>
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<a href="#D">-D colorant</a> Add or delete colorant from
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combination:<br>
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0:
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Additive<br>
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1:
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Cyan<br>
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2:
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Magenta<br>
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3:
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Yellow<br>
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4:
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Black<br>
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5:
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Orange<br>
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6:
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Red<br>
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7:
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Green<br>
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8:
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Blue<br>
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9:
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Violet<br>
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10:
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White<br>
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11:
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Light
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Cyan<br>
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12:
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Light
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Magenta<br>
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13:
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Light
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Yellow<br>
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14:
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Light
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Black<br>
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15:
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Medium
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Cyan<br>
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16:
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Medium
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Magenta<br>
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17:
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Medium
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Yellow<br>
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18:
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Medium
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Black<br>
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19:
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Light
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Light Black<br>
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<a href="#G">-G</a>
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Generate
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good optimzed points rather than Fast<br>
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<a href="#e">-e patches</a> White color test patches
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(default 4)<br>
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<a href="#B">-B patches</a> Black test patches
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(default 4 Grey/RGB, else 0)<br>
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<a href="#s">-s steps</a> Single channel
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steps (default 0)<br>
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<a href="#g">-g steps</a> Gray axis RGB or
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CMY steps (default 0)<br>
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<a href="#n">-n steps</a> Neutral axis
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steps (based on profile, default 0)<br>
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<a href="#m">-m steps</a> Multidimensional
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device space cube steps (default 0)<br>
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<a href="#M">-M steps</a> Multidimensional
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device space cube surface steps (default 0)<br>
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<a href="#b">-b steps</a> Multidimensional
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body centered cubic steps (default 0)<br>
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<a href="#f">-f patches</a> Add iterative &
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adaptive full spread patches to total (default 836)<br>
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Default
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is
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Optimised Farthest Point Sampling (OFPS)<br>
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<a href="#t">-t</a> Use
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incremental
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far point for full spread<br>
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<a href="#r">-r</a>
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Use
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device space random for full spread<br>
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<a href="#R">-R</a>
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Use
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perceptual space random for full spread<br>
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<a href="#q">-q</a>
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Use
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device space-filling quasi-random for full spread<br>
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<a href="#Q">-Q</a>
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Use
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perceptual space-filling quasi-random for full spread<br>
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<a href="#i">-i</a>
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Use
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device space body centered cubic grid for full spread<br>
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<a href="#I">-I</a>
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Use
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perceptual space body centered cubic grid for full spread<br>
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<a href="#a">-a angle</a> Simplex grid
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angle 0.0 - 0.5 for B.C.C. grid, default 0.333300<br>
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<a href="#A">-A adaptation</a> Degree of adaptation of OFPS 0.0 - 1.0
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(default 0.1, 1.0 if -c profile provided)<br>
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<a href="#t">-t</a>
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Use
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incremental far point for full spread (default iterative)<br>
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<a href="#l">-l ilimit</a> Total ink limit in
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%(default = none, or estimated from profile)<br>
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<a href="#T" moz-do-not-send="true">-T ilimit</a>
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Text and space total ink limit in % (default = same as -l)<br>
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<a href="#p">-p power</a> Optional
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power-like value applied to all device values.<br>
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<a href="#c">-c profile</a> Optional device ICC or MPP
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pre-conditioning profile filename<br>
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<a moz-do-not-send="true" href="#C">-C cal</a>
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Optional .cal filename that overrides any .cal in ICC 'targ' .ti3<br>
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(Use "none" to disable .cal use in estimating ink limit)<br>
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<a href="#N">-N emphasis</a> Degree of neutral axis patch
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concentration 0-1. (default 0.50)<br>
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<a href="#V">-V emphasis</a> dark region patch concentration
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1.0-4.0 (default 1.0 = none)<br>
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<a href="#F">-F L,a,b,rad</a> Filter out samples outside Lab
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sphere.<br>
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<a href="#O">-O</a>
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Don't
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re-order display RGB patches for minimum delay<br>
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<a href="#U">-U</a>
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Don't
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filter out duplicate patches</span><br>
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<span style="font-family: monospace;"><a href="#w">-w</a>
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Dump
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diagnostic outfile.x3d.html file (Lab locations)<br>
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<a href="#W">-W</a>
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Dump
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diagnostic outfile.x3d.html file (Device locations)<br>
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<i><a href="#p1">outfile</a></i>
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Base name for output(.ti1) </span>
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</p>
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<h3>Usage Details and Discussion<br>
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</h3>
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The number of target patches needs to be chosen, depending on the media
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size, the type of device, and the quality of profile required. For an inkjet
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device, something like 3000 test points or more is desirable for high
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quality profiles, while 500-1000 will probably suffice for a medium quality
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profile. A few hundred may be sufficient for a preliminary profile. Well
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behaved printing devices (such as a chemical proof, or a high quality
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printing press) may produce good profiles with 1000 to 2000 test points.
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Well behaved RGB devices such as CRT monitors may need only a few hundred
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points, if a shaper/matrix type profile is to be produced, while pseudo RGB
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printers, or other RGB devices that a CLUT type profile may be used with,
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should probably choose somewhere between 500 and 3000 patches. For 'N' color
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profile creation, 3000 or more test points should probably be used.<br>
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<br>
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<a name="v"></a> The <b>-v</b> flag turns on extra verbosity when
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generating patch values. Extra diagnostics and verbosity may be available if
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a parameter is provided with a value greater than 1.<br>
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<br>
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<a name="d"></a> The <b>-d</b> parameter sets the colorspace the test
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values will be generated in. Video gray space is assumed to be an additive
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space, where a zero device value will be black, and a maximum device value
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will be white. A print gray space is assumed to be a subtractive space, in
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which a zero device value will be white, and a maximum device value will be
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black. If no colorspace is specified, subtractive CMYK is assumed as a
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default.<br>
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<br>
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<a name="D"></a> The <b>-D</b> parameter modifies the colorspace set by <span
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style="font-weight: bold;">-d</span> by allowing individual colorants to
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be added or subtracted from the colorspace.<br>
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<br>
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<a name="G"></a> The <b>-G</b> flag changes the Optimized Far Point
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Distribution (OFPS) algorithm from fast to good mode. Fast mode uses a
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limited number of iterations to optimize the patch locations, while good
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mode strives for a more even patch distribution by using more iterations.<br>
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<br>
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The composition of the test patches is controlled by the following flags and
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parameters:<br>
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<br>
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<a name="e"></a> The <b>-e</b> parameter sets the number of white colored
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test patches, defaulting to 4 if the -e flag isn't used. The white patches
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are usually very important in establishing white point that the ICC data is
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made relative to, so it improves robustness to use more than a single point.<br>
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<br>
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<a name="B"></a> The <b>-B</b> parameter sets the number of black colored
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test patches, defaulting to 4 if the -B flag isn't used and the colorspace
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is grey or RGB. The black point can be very important for characterizing
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additive color spaces, so measuring more than one black patch improves
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robustness over measuring just a single point.<br>
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<br>
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<a name="s"></a> The <b>-</b><b>s</b> parameter sets the number of patches
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in a set of per colorant wedges. The steps are evenly spaced in device space
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by default, and the total number of test patches will be the number of
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colorants times the value specified with the -s flag. If the <span style="font-weight: bold;">-p</span>
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parameter is provided, then, then the steps will be distributed according to
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the power value. e.g. the option <span style="font-weight: bold;">-s 5</span>
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will generate steps at 0.0 0.25 0.5 0.75 and 1.0, while the option <span style="font-weight:
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bold;">-s 5 -p 2.0</span> will generate steps at 0.0 0.0625 0.25 0.5625
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and 1.0. By default, no per colorant test wedge values are generated. When
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creating a test chart for a device that will be used as a source colorspace,
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it is often useful to generated some per colorant wedge values.<br>
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<br>
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<a name="g"></a> The <b>-g</b> parameter sets the number of patches in a
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set of combined (nominally gray) wedges. This will typically be equal RGB or
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CMY values, and by default will be equally spaced steps in device space. If
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the <span style="font-weight: bold;">-p</span> parameter is provided, then,
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then the steps will be distributed according to the power value. e.g. the
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option <span style="font-weight: bold;">-g 5</span> will generate steps at
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0.0 0.25 0.5 0.75 and 1.0, while the option <span style="font-weight:
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bold;">-g 5 -p 2.0</span> will generate steps at 0.0 0.0625 0.25 0.5625
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and 1.0. By default, no gray combination values are generated. When creating
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a test chart for a device that will be used as a source colorspace, it is
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often useful to generated some per colorant wedge values.<br>
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<br>
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<a name="n"></a>The <b>-n</b> parameter sets the number of patches in a set
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of neutral axis wedge steps. This uses the <a href="#c">pre-conditioning
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profile</a>, to lookup the assumed neutral axis device values. By default,
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no neutral axis values are generated. If you have a previous profile for a
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device as a reference, adding some neutral axis values can improve the
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neutral axis rendering of the subsequent profiles. A good number to start
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with the the cube root of the total number of patches. Too higher density of
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<b>-n</b> patches will tend to cause full spread patches to keep their
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distance.<br>
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<br>
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<a name="m"></a> The <b>-m</b> parameter sets the edge size of the
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multidimensional grid of test values. The total number of patches of this
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type will be the -m parameter value to the power of the number of colorants.
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The grid steps are evenly spaced in device space by default, but if the <span
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style="font-weight: bold;">-p</span> parameter is provided, then, then the
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steps will be distributed according to the power value. e.g. the option <span
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style="font-weight: bold;">-m 5</span> will generate steps at 0.0 0.25 0.5
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0.75 and 1.0, while the option <span style="font-weight:
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bold;">-m 5 -p 2.0</span> will generate steps at 0.0 0.0625 0.25 0.5625
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and 1.0. By default, all the device primary color combinations that fall
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within the ink limit are generated.<br>
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<br>
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<a name="M"></a>Similarly to the <a href="#m">-m</a> parameter, the <b>-M</b>
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parameter sets the edge size of the multidimensional grid of test values,
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but where only the surface points of the cube is generated. These may be
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useful for exploring just the expected gamut surface of a space.<br>
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<br>
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<a name="b"></a> The <b>-b</b> parameter sets the outer edge size of the
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multidimensional body centered grid of test values. The total number of
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patches of this type will be the -b parameter value to the power of the
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number of colorants plus the (number-1) to the power of the number of
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colorants. The grid steps are evenly spaced in device space by default, but
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if the <span style="font-weight: bold;">-p</span> parameter is provided,
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then, then the steps will be distributed according to the power value. A
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body centered grid is a regular grid (see <b>-m</b>) with another smaller
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regular grid within it, at the centers of the outer grid. This grid
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arrangement is more space efficient than a regular grid (ie. for a given
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number of test points, it fills the space better.)<br>
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<br>
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The behavior of the <b>-e</b>, <b>-s</b>, <b>-g</b> <b>-m </b>and <b>-b</b>
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flags, is not to duplicate test values already created by a previous type.<br>
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<br>
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<a name="f"></a> The <b>-f</b> parameter sets the number of full spread
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test patches. Full spread patches are distributed according to the default
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or chosen algorithm. The default algorithm will optimize the point locations
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to minimize the distance from any point in device space, to the nearest
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sample point. This is called Optimized Farthest Point Sampling (OFPS) . This
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can be overridden by specifying the <b>-t. -r, -R, -q, -i or -I</b> flags.
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If the default OFPS algorithm is used, then adaptive test point distribution
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can be fully enabled by supplying a previous or typical profile with the <span
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style="font-weight: bold;">-c</span> option. The total number patches
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specified will include any patches generated using the <b>-e</b>, <b>-s</b>,
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<b>-g</b> <b>-m</b> and <b>-b</b> flags (i.e. full spread patches will be
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|
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 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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
<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>
|
|
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>
|
|
For CMYK colorspace, a default of 0.5 (medium) is set, to permit some
|
|
lightness compensation to be applied to shift the average lightness level
|
|
closer to that of the CMY gamut, even if no profile is supplied.<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.<br>
|
|
Ink limits are, as far as possible, always in final raw device values, and
|
|
the calibration curves within the .ti3 data included in the 'targ' tag from
|
|
the profile provided to the <span style="font-weight: bold;">-c</span>
|
|
option will be used to estimate the equivalent limit in the underlying
|
|
pre-calibration device space values that targen creates.<br>
|
|
<br>
|
|
<a name="T"></a>The <b>-T</b> parameter is similar to the <b>-I</b>
|
|
parameter, but applies a different total ink limit to the non-patch elements
|
|
of the test chart created by printtarg. The default is the same as the test
|
|
patch limit.<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>
|
|
<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 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 perceptually 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 > 0.0) is being used. The perceptual values are written to the .ti1
|
|
file to enable patch location recognition. If the profile contains .ti3 data
|
|
included in the 'targ' tag, and this .ti3 contains calibration curves, then
|
|
these will be used to estimate the equivalent limit in the ICC profile
|
|
underlying pre-calibration device space values that targen creates. Use the
|
|
name "<b>none</b>" to turn off the default pre-conditioning used when no
|
|
profile is provided.<br>
|
|
<br>
|
|
<a name="C"></a> The <b>-C</b> flag and parameter is used to specify <a href="File_Formats.html#.cal"
|
|
moz-do-not-send="true">.cal</a> calibration curves, that will override any
|
|
calibration curves found in the ICC profile 'targ' .ti3 data, and will be
|
|
used for estimating the equivalent limit in the ICC profile underlying
|
|
pre-calibration device space values that targen creates. Use "<b>none</b>"
|
|
to to disable .cal use in estimating the underlying ink limit from the ICC
|
|
profile.<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 <b>is only
|
|
effective</b> 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 emphasis</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 <b>is only effective</b>
|
|
for perceptual patch distributions where a <a href="targen.html#c">pre-conditioning</a>
|
|
profile is provided or the <a href="#A" moz-do-not-send="true">adaptation</a>
|
|
parameter is set to a high value. 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. 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="targen.html#p">-p
|
|
power</a> value in changing the distribution of </small><small><a href="targen.html#s">-s
|
|
steps</a>, </small><small><a href="targen.html#g">-g steps</a>, </small><small><a
|
|
href="targen.html#m">-m steps</a></small> and <small><small><a href="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 & -r, -R
|
|
and -q will generate a smaller number of test points than expected. If the
|
|
-f N & -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>
|
|
<a name="O"></a> The <b>-O</b> flag disables the normal patch re-ordering
|
|
used for display RGB sets. Displays are assumed to have a "settling time",
|
|
and the delay needed for this settling time can be minimzed by sort the
|
|
patches so that they are in an order which minimizes the change in levels
|
|
between patches. <b>-O</b> disables this re-ordering, leaving the patches
|
|
in whatever order they were generated.<br>
|
|
<br>
|
|
<a name="U"></a> The <b>-U</b> flag disables the normal filtering out of
|
|
duplicate patches.<br>
|
|
<br>
|
|
|
|
|
|
<a name="w"></a> The <b>-w</b> flag causes a diagnostic <a href="File_Formats.html#X3DOM">X3DOM</a>
|
|
.x3d.html file to be created, in which the test points are plotted as small
|
|
spheres in L*a*b* colorspace. Note that for a CMYK device, the point spacing
|
|
may seem 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>
|
|
<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>
|
|
<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 a trial and error
|
|
fashion.<br>
|
|
<br>
|
|
Note that some people create charts with larger numbers of patches for the
|
|
ColorMunki by altering an Eye-One Pro chart, and making scanning jigs to
|
|
guide the instrument more accurately. This may reduce patch reading accuracy
|
|
unless suitable care is taken.<br>
|
|
<br>
|
|
<a name="Table"></a> Size (mm/Standard Name), No.
|
|
Patches<br>
|
|
<br>
|
|
DTP20:<br>
|
|
<br>
|
|
1 x A4 540<br>
|
|
2 x A4 1080<br>
|
|
3 x A4 1620<br>
|
|
4 x A4 2160<br>
|
|
<br>
|
|
1 x Letter 570<br>
|
|
2 x Letter 1140<br>
|
|
3 x Letter 1710<br>
|
|
4 x Letter 2280<br>
|
|
<br>
|
|
DTP 22:<br>
|
|
<br>
|
|
1 x A4 782<br>
|
|
2 x A4 1564<br>
|
|
<br>
|
|
1 x Letter 736<br>
|
|
2 x Letter 1472<br>
|
|
<br>
|
|
DTP41:<br>
|
|
<br>
|
|
1 x A4
|
|
375<br>
|
|
2 x A4
|
|
750<br>
|
|
3 x A4
|
|
1125<br>
|
|
4 x A4
|
|
1500<br>
|
|
<br>
|
|
1 x Letter
|
|
345<br>
|
|
2 x Letter
|
|
690<br>
|
|
3 x Letter
|
|
1035<br>
|
|
4 x Letter
|
|
1380<br>
|
|
<br>
|
|
1 x A3
|
|
836<br>
|
|
2 x A3
|
|
1672<br>
|
|
<br>
|
|
1 x 11x17
|
|
780<br>
|
|
2 x 11x17
|
|
1560<br>
|
|
<br>
|
|
<br>
|
|
DTP51:<br>
|
|
<br>
|
|
1 x A4
|
|
266<br>
|
|
2 x A4
|
|
532<br>
|
|
3 x A4
|
|
798<br>
|
|
4 x A4
|
|
1064<br>
|
|
<br>
|
|
1 x Letter
|
|
252<br>
|
|
2 x Letter
|
|
504<br>
|
|
3 x Letter
|
|
756<br>
|
|
4 x Letter
|
|
1008<br>
|
|
<br>
|
|
1 x A3
|
|
580<br>
|
|
2 x A3
|
|
1160<br>
|
|
<br>
|
|
1 x 11x17 570<br>
|
|
2 x 11x17 1140<br>
|
|
<br>
|
|
SpectroScan with square patches:<br>
|
|
<br>
|
|
1 x A4R 1014<br>
|
|
2 x A4R 2028<br>
|
|
3 x A4R 3042<br>
|
|
4 x A4R 4056<br>
|
|
<br>
|
|
1 x LetterR 999<br>
|
|
2 x LetterR 1998<br>
|
|
3 x LetterR 2997<br>
|
|
4 x LetterR 3996<br>
|
|
<br>
|
|
SpectroScan with hexagonal patches:<br>
|
|
<br>
|
|
1 x A4R 1170<br>
|
|
2 x A4R 2340<br>
|
|
3 x A4R 3510<br>
|
|
4 x A4R 4680<br>
|
|
<br>
|
|
1 x LetterR 1092<br>
|
|
2 x LetterR 2184<br>
|
|
3 x LetterR 3276<br>
|
|
4 x LetterR 4368<br>
|
|
<br>
|
|
Eye-One Pro:<br>
|
|
<br>
|
|
1 x A4 441<br>
|
|
2 x A4 882<br>
|
|
3 x A4 1323<br>
|
|
4 x A4 1764<br>
|
|
<br>
|
|
1 x Letter 462<br>
|
|
2 x Letter 924<br>
|
|
3 x Letter 1386<br>
|
|
4 x Letter 1848<br>
|
|
<br>
|
|
ColorMunki:<br>
|
|
<br>
|
|
1 x A4
|
|
90<br>
|
|
2 x A4 180<br>
|
|
3 x A4
|
|
270<br>
|
|
4 x A4
|
|
360<br>
|
|
<br>
|
|
1 x Letter 98<br>
|
|
2 x Letter 196<br>
|
|
3 x Letter 294<br>
|
|
4 x Letter 392<br>
|
|
<br>
|
|
ColorMunki -h:<br>
|
|
<br>
|
|
1 x A4 210<br>
|
|
2 x A4 420<br>
|
|
3 x A4 630<br>
|
|
4 x A4 840<br>
|
|
<br>
|
|
1 x Letter 196<br>
|
|
2 x Letter 392<br>
|
|
3 x Letter 588<br>
|
|
4 x Letter 784<br>
|
|
<br>
|
|
Scanner (printtarg with -iSS -s options):<br>
|
|
<br>
|
|
1 x A4R 1014<br>
|
|
2 x A4R 2028<br>
|
|
3 x A4R 3042<br>
|
|
4 x A4R 4056<br>
|
|
<br>
|
|
1 x LetterR 962<br>
|
|
2 x LetterR 1924<br>
|
|
3 x LetterR 2886<br>
|
|
4 x LetterR 3848<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
<br>
|
|
</body>
|
|
</html>
|