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diff --git a/doc/xicclu.html b/doc/xicclu.html index 8377c69..cf572fe 100644 --- a/doc/xicclu.html +++ b/doc/xicclu.html @@ -1,551 +1,838 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> -<head> - <title>xicclu</title> - <meta http-equiv="content-type" - content="text/html; charset=ISO-8859-1"> - <meta name="author" content="Graeme Gill"> -</head> -<body> -<h2><b>xicc/xicclu</b> </h2> -<h3>Summary <br> -</h3> -Lookup individual color values forward or inverted though an ICC -profile table. <b>xicclu</b> is the analogue of the icclib tool <a - href="icclu.html">icclu</a>, but expands the capability to reverse -lookup the Lut tables, and displaying PCS values in CIECAM02 Jab space. -<b>xicclu</b> -can also be used to plot the device value composition down the neutral -axis, -for device profiles.<br> -<h3>Usage Summary</h3> - <small><span style="font-family: monospace;">xicclu [-</span><i - style="font-family: monospace;">options</i><span - style="font-family: monospace;">] profile</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#v">-v level</a><span - style="font-family: monospace;"> -Verbosity level 0 - 2 (default = 1)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#g">-g</a><span - style="font-family: monospace;"> - Plot slice instead of looking colors up. (Default white to black)<br> - <a href="#Gs">-G s:L:a:b</a> Override -plot slice start with Lab or Jab co-ordinate<br> - <a href="#Ge">-G e:L:a:b</a> Override -plot slice end with Lab or Jab co-ordinate<br - style="font-family: monospace;"> -</span><span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#f">-f function</a><span - style="font-family: monospace;"> f = forward, b = -backwards, g = gamut, p = preview</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> + <head> + <title>xicclu</title> + <meta http-equiv="content-type" content="text/html; + charset=ISO-8859-1"> + <meta name="author" content="Graeme Gill"> + </head> + <body> + <h2><b>xicc/xicclu</b> </h2> + <h3>Summary <br> + </h3> + Lookup individual color values forward or inverted though an ICC + profile table or CAL file. <b>xicclu</b> is the analogue of the + icclib tool <a href="icclu.html">icclu</a>, but expands the + capability to reverse lookup the Lut tables, and displaying PCS + values in CIECAM02 Jab space. <b>xicclu</b> can also be used to + plot the device value composition down the neutral axis for device + profiles, or CAL file contents.<br> + <br> + Few of the options that apply to ICC profiles apply to CAL files, + although device value options such as <b>-e</b> or <b>-E</b> will + work. To lookup inverted CAL values, use <b>-f b</b>.<br> + <h3>Usage Summary</h3> + <small><span style="font-family: monospace;">xicclu [-</span><i + style="font-family: monospace;">options</i><span + style="font-family: monospace;">] profile_or_cal</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#v">-v level</a><span + style="font-family: monospace;"> + Verbosity level 0 - 2 (default = 1)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#g">-g</a><span + style="font-family: monospace;"> + Plot slice instead of looking colors up. (Default + white to black)<br> + <a href="#Gs">-G s:L:a:b</a> + Override plot slice start with Lab or Jab co-ordinate<br> + <a href="#Ge">-G e:L:a:b</a> + Override plot slice end with Lab or Jab co-ordinate<br + style="font-family: monospace;"> + </span><span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#f">-f function</a><span + style="font-family: monospace;"> f = forward, + b = backwards, g = gamut, p = preview</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> if -= inverted forward, ib = inverted backwards</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#i">-i intent</a><span - style="font-family: monospace;"> a = -absolute, r = relative colorimetric,</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> -</span></small><small><span style="font-family: monospace;"> p = -perceptual, </span></small><small><span style="font-family: monospace;">s = -saturation</span><span style="font-family: monospace;"></span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#o">-o order</a><span - style="font-family: monospace;"> n -= normal (priority: lut > matrix > monochrome)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> + + + + + + inverted forward, ib = inverted backwards</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#i">-i intent</a><span + style="font-family: monospace;"> a + = absolute, r = relative colorimetric,</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + + + + + + </span></small><small><span style="font-family: monospace;"> p = + perceptual, </span></small><small><span style="font-family: + monospace;">s = saturation</span><span style="font-family: + monospace;"></span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#o">-o order</a><span + style="font-family: monospace;"> + + + + + + n = normal (priority: lut > matrix > monochrome)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> r -= reverse (priority: monochrome > matrix > -lut)</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#p">-p oride</a><span - style="font-family: monospace;"> x -= XYZ_PCS, X = XYZ * 100, l = Lab_PCS, L = LCh, y = Yxy,<br> - j = CIECAM02 -Appearance Jab, J = CIECAM02 Appearance JCh<br> -</span><span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#s">-s scale</a><span - style="font-family: monospace;"> -Scale device range 0.0 - scale rather than 0.0 - 1.0</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#k">-k [zhxrlv]</a><span - style="font-family: monospace;"> Black generation: z -= zero K,</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> += + + + + + + reverse (priority: monochrome > matrix > lut)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#p">-p oride</a><span + style="font-family: monospace;"> + + + + + + x = XYZ_PCS, X = XYZ * 100, l = Lab_PCS, L = LCh, y = Yxy,<br> + j = + CIECAM02 Appearance Jab, J = CIECAM02 Appearance JCh<br> + </span><span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#s">-s scale</a><span + style="font-family: monospace;"> +Scale + + + + + + device range 0.0 - scale rather than 0.0 - 1.0<br> + </span></small><br> + <small><span style="font-family: monospace;"><small><span + style="font-family: monospace;"><a href="#e">-e flag</a> + + + Video encode device input as:<br> + <a href="#E">-E flag</a> + + + Video decode device output as:<br> + + n + normal 0..1 full range RGB levels (default)<br> + + t + (16-235)/255 "TV" RGB levels<br> + + 6 + Rec601 YCbCr SD (16-235,240)/255 "TV" levels<br> + + 7 + Rec709 1125/60Hz YCbCr HD (16-235,240)/255 "TV" levels<br> + + 5 + Rec709 1250/50Hz YCbCr HD (16-235,240)/255 "TV" levels<br> + + 2 + Rec2020 YCbCr UHD (16-235,240)/255 "TV" levels<br> + + C + Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 "TV" + lev</span></small></span></small><small><span + style="font-family: monospace;"><br style="font-family: + monospace;"> + </span> <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#k">-k [zhxrlv]</a><span + style="font-family: monospace;"> Black + generation: z = zero K,</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> -h = 0.5 K, x = max K, r = ramp K (def.)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +h + + + + + + = 0.5 K, x = max K, r = ramp K (def.)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> -l = extra PCS input is portion of K locus</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +l + + + + + + = extra PCS input is portion of K locus</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> -v = extra PCS input is K target value</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#kp">-k p stle stpo enpo enle -shape</a><br style="font-family: monospace;"> -<span style="font-family: monospace;"> +v + + + + + + = extra PCS input is K target value</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#kp">-k p stle stpo enpo + enle shape</a><br style="font-family: monospace;"> + <span style="font-family: monospace;"> -stle: K level at White 0.0 - 1.0</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +stle: + + + + + + K level at White 0.0 - 1.0</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> -stpo: start point of transition Wh 0.0 - Bk 1.0</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +stpo: + + + + + + start point of transition Wh 0.0 - Bk 1.0</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> -enpo: End point of transition Wh 0.0 - Bk 1.0</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +enpo: + + + + + + End point of transition Wh 0.0 - Bk 1.0</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> -enle: K level at Black 0.0 - 1.0</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +enle: + + + + + + K level at Black 0.0 - 1.0</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> -shape: 1.0 = straight, 0.0-1.0 concave, 1.0-2.0 -convex</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#kq">-k q stle0 stpo0 enpo0 -enle0 shape0 stle2 stpo2 -enpo2 enle2 shape2</a><br style="font-family: monospace;"> -<span style="font-family: monospace;"> +shape: + + + + + + 1.0 = straight, 0.0-1.0 concave, 1.0-2.0 convex</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#kq">-k q stle0 stpo0 + enpo0 enle0 shape0 stle2 stpo2 enpo2 enle2 shape2</a><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> Transfer -extra PCS input to dual curve limits</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#K">-K parameters</a><span - style="font-family: monospace;"> Same as -k, but target is K -locus rather than K value itself</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#l">-l tlimit</a><span - style="font-family: monospace;"> set -total ink limit, 0 - 400% (estimate by default)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#L">-L klimit</a><span - style="font-family: monospace;"> set -black ink limit, 0 - 100% (estimate by default)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#a">-a</a><span - style="font-family: monospace;"> +extra + + + + + + PCS input to dual curve limits</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#K">-K parameters</a><span + style="font-family: monospace;"> Same as -k, but target is + K locus rather than K value itself</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#l">-l tlimit</a><span + style="font-family: monospace;"> + set total ink limit, 0 - 400% (estimate by default)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#L">-L klimit</a><span + style="font-family: monospace;"> + set black ink limit, 0 - 100% (estimate by default)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#a">-a</a><span + style="font-family: monospace;"> show -actual target values if clipped<br> - <a href="#b">-b</a> +actual + + + + + + target values if clipped<br> + <a href="#b">-b</a> use -CAM Jab for clipping<br style="font-family: monospace;"> -</span><span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#m">-m</a><span - style="font-family: monospace;"> - -merge output processing into clut</span><span - style="font-family: monospace;"></span><span - style="font-weight: bold; font-family: monospace;"></span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> </span><a - style="font-family: monospace;" href="#c">-c viewcond</a><span - style="font-family: monospace;"> set viewing -conditions -for CIECAM02,</span><br style="font-family: monospace;"> - </small><small><span style="font-family: monospace;"> +CAM + + + + + + Jab for clipping<br style="font-family: monospace;"> + </span><span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#m">-m</a><span + style="font-family: monospace;"> + + merge output processing into clut</span><span + style="font-family: monospace;"></span><span style="font-weight: + bold; font-family: monospace;"></span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#c">-c viewcond</a><span + style="font-family: monospace;"> set viewing + conditions for CIECAM02,</span><br style="font-family: + monospace;"> + </small><small><span style="font-family: monospace;"> -either an enumerated choice, or a parameter:value change</span><span - style="font-family: monospace;"></span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"></span></small><small><span - style="font-family: monospace;"> - pp - Practical Reflection Print -(ISO-3664 P2)</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> +either + + + + + + an enumerated choice, or a parameter:value change</span><span + style="font-family: monospace;"></span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"></span></small><small><span + style="font-family: monospace;"> + pp - Practical Reflection Print (ISO-3664 P2)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> -pe - Print evaluation environment (CIE 116-1995)<br> -</span></small><small><span style="font-family: monospace;"> +pe + + + + + + - Print evaluation environment (CIE 116-1995)<br> + </span></small><small><span style="font-family: monospace;"> -pc - Critical print evaluation environment (ISO-3664 P1)</span></small><small><span - style="font-family: monospace;"></span><span - style="font-family: monospace;"></span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> - mt - Monitor in typical work environment</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +pc + + + + + + - Critical print evaluation environment (ISO-3664 P1)</span></small><small><span + style="font-family: monospace;"></span><span style="font-family: + monospace;"></span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> + mt - Monitor in typical work environment</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + - mb - Monitor in bright work environment</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> - md - Monitor in darkened work -environment</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> - jm - Projector in dim environment</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> - jd - Projector in dark environment</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> - pcd - Photo CD - original scene -outdoors</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> - ob - Original scene - Bright Outdoors</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> - cx - Cut Sheet Transparencies on a viewing box</span></small><small><span - style="font-family: monospace;"></span><span - style="font-family: monospace;"></span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> + + + + + + mb - Monitor in bright work environment</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + md - Monitor in darkened work + environment</span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> + jm - Projector in dim environment</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + jd - Projector in dark environment</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + pcd - Photo CD - original scene outdoors</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + ob - Original scene - Bright Outdoors</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + cx - Cut Sheet Transparencies on a + viewing box</span></small><small><span style="font-family: + monospace;"></span><span style="font-family: monospace;"></span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> s:surround -n = auto, a = average, m = dim, d = dark,</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +n + + + + + + = auto, a = average, m = dim, d = dark,</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + - c = transparency (default average)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> + + + + + + c = transparency (default average)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> w:X:Y:Z -Adapted white point -as XYZ (default media white, Abs: D50)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +Adapted + + + + + + white point as XYZ (default media white, Abs: D50)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> w:x:y -Adapted white point as -x, y</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> +Adapted + + + + + + white point as x, y</span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> a:adaptation -Adaptation luminance in -cd.m^2 -(default 50.0)</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> - b:background Background % -of image luminance (default 20)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> +Adaptation + + + + + + luminance in cd.m^2 (default 50.0)</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> + b:background Background % of + image luminance (default 20)</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"></span></small><small><span + style="font-family: monospace;"><small><span style="font-family: + monospace;"> f:flare Flare -light % of image luminance (default 1)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> - -f:X:Y:Z Flare color -as XYZ (default media white, Abs: D50)</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> -f:x:y -Flare color as x, y</span><br style="font-family: monospace;"> -<br style="font-family: monospace;"> -<span style="font-family: monospace;"> -</span><a style="font-family: monospace;" href="#p1"><i>inoutfile</i></a><span - style="font-family: monospace;"> The input -ICC profile</span><br style="font-family: monospace;"> -<br style="font-family: monospace;"> -<span style="font-family: monospace;"> The colors to -be translated should be fed into -standard in,</span><br style="font-family: monospace;"> -<span style="font-family: monospace;"> one input -color per line, white space separated.</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> A line -starting with a # will be ignored.</span><br - style="font-family: monospace;"> -<span style="font-family: monospace;"> A line not -starting with a number will terminate the -program.</span></small> -<br> -<h3>Flags and Parameters</h3> -<a name="v"></a> The <b>-v</b> parameter sets the level of verbosity. -Default is level 1, which repeats each input value, the colorspaces of -input and output, the type of conversion algorithm used, and if the -result was clipped. Level 2 adds prints extra information about the -profile before doing the conversions. Level 0 turns off all verbosity, -just outputting the results of each conversion. Use the latter to -capture batch output ready for further processing.<br> -<br> -<a name="g"></a>The <b>-g</b> flag causes a plot of the device values -along a slice through the Lab or Jab colorspace, rather than allowing -the interactive looking up of color -values. By default this will be the neutral axis -from the white point to the black point, but the start and end can be -overridden using the <span style="font-weight: bold;">-G</span> -parameters. -This is useful in determining the existing black generation in a CMYK -profile, -or exploring the behavior of various black generation options using -the -<b>-k</b> parameters. The profile must be a device profile, and the PCS -must -be either Lab or Jab. The default plot is up the neutral axis is from -the white to -the black point (scale 0 to 100%), and shows the percentage of each -device colorant. To examine a profiles B2A table black -generation, -use the flag <b>-fb</b> to select the B2A table, or to invert the A2B -table, -and be able to explore black generation behavior, use the <b>-fif</b> -flag. -The appropriate intent can be selected with the <b>-i</b> flag, - as -can other flags appropriate to the function selected. See <a - href="#xg">example</a>.<br> -<br> -<a name="Gs"></a>The <span style="font-weight: bold;">-G </span><small><span - style="font-family: monospace;"><span style="font-weight: bold;">s:L:a:b</span></span></small> -parameter overrides the plot slice start point of white, with some -other point specified in Lab or Jab Profile Connection Space. The -parameter must be a single string that combines<span - style="font-weight: bold;"> s:</span> with the three numbers separated -by the '<span style="font-weight: bold;">:'</span> character (no -spaces).<br> -<br> -<a name="Ge"></a>The <span style="font-weight: bold;">-G </span><small><span - style="font-family: monospace;"><span style="font-weight: bold;">e:L:a:b</span></span></small> -parameter overrides the plot slice end point of black, with some -other point specified in Lab or Jab Profile Connection Space. The -parameter must be a single string that combines<span - style="font-weight: bold;"> s:</span> with the three numbers separated -by the '<span style="font-weight: bold;">:'</span> character (no -spaces).<br> -<br> -<a name="f"></a> The <b>-f</b> flag selects which type of table or -conversion is to be used. In addition to the usual four tables that can -be accessed in a fully populated Lut based profile, two additional -options are available in <b>xicclu</b>. One is to invert the forward -table, and the other is to invert the backward table. For non Lut based -profiles, -fif is equivalent to -fb, and -fib is equivalent to -ff. -Note that the -fib combination may not be fully supported.<br> -<br> -<a name="i"></a> The <b>-i</b> flag selects the intent table used for -a lut based -profile. It also selects between relative and absolute colorimetric for -non-lut base profiles.<br> -<br> -<a name="o"></a> A profile is allowed to contain more than the minimum -number of elements or table needed to describe a certain transform, and -may contain redundant descriptions. By default, Lut based table -information will be used first if present, followed by matrix/shaper -information, and only using monochrome information if it is all that is -present. The <b>-o</b> flag, reverses this order. <br> -<br> -<a name="p"></a> Normally the native PCS (Profile Connection Space) of -a device or abstract profile is used, but the <b>-p</b> flag allows -this to be overridden: <span style="font-weight: bold;">-px</span>: -XYZ (scaled to 1.0), <span style="font-weight: bold;">-pX</span>: XYZ -scaled to 100, <span style="font-weight: bold;">-pl</span>: L*a*b*, <span - style="font-weight: bold;">-pL</span>: LCh, <span - style="font-weight: bold;">-py</span>: Yxy space, <span - style="font-weight: bold;">-pj</span>: CIECAM02 appearance space Jab, -or <span style="font-weight: bold;">-pJ</span>: CIECAM02 appearance -space JCh.<span style="font-weight: bold;"><br> -</span>Note that the CIECAM02 output space selection by default uses -the colorimetric table of the profile, but that the perceptual or -saturation tables may be used by selecting them using the <span - style="font-weight: bold;">-i</span> parameter. If the absolute -colorimetric intent is chosen using <span style="font-weight: bold;">-ia</span> -in combinations with <span style="font-weight: bold;">-pj</span>, -then Jab with -a fixed white reference is used, which emulates an absolute CIECAM02 -Jab -appearance space. <br> -<br> -<a name="s"></a> Usually device values are processed and displayed -using a normalized value range between 0.0 and 1.0 Sometimes other -systems scale them to some other range (such as 100 or 255) due to an -underlying binary representation. The <span style="font-weight: bold;">-s</span> -flag lets you input and display such data in its normal range. For -instance, if your device values have a range between 0 and 255, use <span - style="font-weight: bold;">-s 255.</span><br> -<br> -<a name="k"></a> When inverting a CMYK profile, (ie. using the -fif -flag), an input PCS value can have many possible CMYK solutions. To be -able to return a unique solution, a black level (or black inking rule) -should be chosen. The choice here reflect similar choices in black -generation available in other tools (eg. <a href="colprof.html">colprof</a>, -<a href="collink.html"> collink</a>), with the addition of two extra -options.<br> -<br> - Possible arguments to the <b>-k</b> option are:<br> -<br> -<b> -kz</b> selects minimum black (0.0)<br> -<b> -kh</b> selects a black value of 0.5<br> -<b> -kx</b> selects the maximum possible black (1.0)<br> -<b> -kr</b> selects a linear black ramp, starting at minimum black for -highlight, and maximum black for shadow (equivalent to -kp 0 0 1 1 1). -This is the default.<br> -<b> -kl</b> uses an extra (fourth) value entered after the input PCS -value, to select a black locus target between 0.0 and 1.0.<br> -<b> -kv</b> uses an extra (fourth) value entered after the input PCS -value, to select a black value target value between 0.0 and 1.0.<br> -<br> -<b><a name="kp"></a>-k p stle stpo enpo enle shape</b> allows an -arbitrary black value ramp to be defined, consisting of a starting -value (stle) for highlights, a breakpoint L value (stpo) where it -starts to transition to the shadow level, an end breakpoint L (enpo) -where it flattens out again, and the finishing black level (enle) for -the shadows. There is also a curve parameter, that modifies the -transition from stle to enle to either be concave (ie. the -transition starts gradually and and finished more abruptly) using -values 0.0-1.0, with 0.0 being most concave, or convex (the transition -starts more abruptly but finishes gradually), using values 1.0-2.0, -with 2.0 being the most convex.<br> -<br> -Typical black value generation curve with parameters something -like: -kp 0 .05 1 .9 .8<br> -<br> -<tt> 1.0 K | - enpo<br> - +light + + + + + + % of image luminance (default 1)<br> + </span></small> + + + + + g:glare Glare light % of ambient + (default 1)</span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> + g:X:Y:Z Glare color + as XYZ (default media white, Abs: D50)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + + + + + g:x:y FGare color as + x, y</span><br style="font-family: monospace;"> + <br style="font-family: monospace;"> + <span style="font-family: monospace;"> </span><a + style="font-family: monospace;" href="#p1"><i>inoutfile</i></a><span + style="font-family: monospace;"> The + input ICC profile or CAL file.</span><br style="font-family: + monospace;"> + <br style="font-family: monospace;"> + <span style="font-family: monospace;"> The + colors to be translated should be fed into standard in,</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> one input + color per line, white space separated.</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> A line + starting with a # will be ignored.</span><br style="font-family: + monospace;"> + <span style="font-family: monospace;"> A line + not starting with a number will terminate the program.</span></small> + <br> + <h3>Flags and Parameters</h3> + <a name="v"></a> The <b>-v</b> parameter sets the level of + verbosity. Default is level 1, which repeats each input value, the + colorspaces of input and output, the type of conversion algorithm + used, and if the result was clipped. Level 2 adds prints extra + information about the profile before doing the conversions. Level 0 + turns off all verbosity, just outputting the results of each + conversion. Use the latter to capture batch output ready for further + processing.<br> + <br> + <a name="g"></a>The <b>-g</b> flag causes a plot of the device + values along a slice through the Lab or Jab colorspace, rather than + allowing the interactive looking up of color values. By default this + will be the neutral axis from the white point to the black point, + but the start and end can be overridden using the <span + style="font-weight: bold;">-G</span> parameters. This is useful in + determining the existing black generation in a CMYK profile, or + exploring the behavior of various black generation options using the + <b>-k</b> parameters. The profile must be a device profile, and the + PCS must be either Lab or Jab. The default plot is up the neutral + axis is from the white to the black point (scale 0 to 100%), and + shows the percentage of each device colorant. To examine a profiles + B2A table black generation, use the flag <b>-fb</b> to select the + B2A table, or to invert the A2B table, and be able to explore black + generation behavior, use the <b>-fif</b> flag. The appropriate + intent can be selected with the <b>-i</b> flag, as can other + flags appropriate to the function selected. See <a href="#xg">example</a>.<br> + <br> + If a CAL file is used, then <b>-g</b> will simply plot the each + channels calibration curve. It will also plot the invers curve for <b>-f + + b</b>.<br> + <br> + <a name="Gs"></a>The <span style="font-weight: bold;">-G </span><small><span + style="font-family: monospace;"><span style="font-weight: bold;">s:L:a:b</span></span></small> + parameter overrides the plot slice start point of white, with some + other point specified in Lab or Jab Profile Connection Space. The + parameter must be a single string that combines<span + style="font-weight: bold;"> s:</span> with the three numbers + separated by the '<span style="font-weight: bold;">:'</span> + character (no spaces).<br> + <br> + <a name="Ge"></a>The <span style="font-weight: bold;">-G </span><small><span + style="font-family: monospace;"><span style="font-weight: bold;">e:L:a:b</span></span></small> + parameter overrides the plot slice end point of black, with some + other point specified in Lab or Jab Profile Connection Space. The + parameter must be a single string that combines<span + style="font-weight: bold;"> s:</span> with the three numbers + separated by the '<span style="font-weight: bold;">:'</span> + character (no spaces).<br> + <br> + <a name="f"></a> The <b>-f</b> flag selects which type of table or + conversion is to be used. In addition to the usual four tables that + can be accessed in a fully populated Lut based profile, two + additional options are available in <b>xicclu</b>. One is to invert + the forward table, and the other is to invert the backward table. + For non Lut based profiles, -fif is equivalent to -fb, and -fib is + equivalent to -ff. Note that the -fib combination may not be fully + supported.<br> + <br> + <a name="i"></a> The <b>-i</b> flag selects the intent table used + for a lut based profile. It also selects between relative and + absolute colorimetric for non-lut base profiles.<br> + <br> + <a name="o"></a> A profile is allowed to contain more than the + minimum number of elements or table needed to describe a certain + transform, and may contain redundant descriptions. By default, + Lut based table information will be used first if present, followed + by matrix/shaper information, and only using monochrome information + if it is all that is present. The <b>-o</b> flag, reverses this + order. <br> + <br> + <a name="p"></a> Normally the native PCS (Profile Connection Space) + of a device or abstract profile is used, but the <b>-p</b> flag + allows this to be overridden: <span style="font-weight: bold;">-px</span>: + XYZ (scaled to 1.0), <span style="font-weight: bold;">-pX</span>: + XYZ scaled to 100, <span style="font-weight: bold;">-pl</span>: + L*a*b*, <span style="font-weight: bold;">-pL</span>: LCh, <span + style="font-weight: bold;">-py</span>: Yxy space, <span + style="font-weight: bold;">-pj</span>: CIECAM02 appearance space + Jab, or <span style="font-weight: bold;">-pJ</span>: CIECAM02 + appearance space JCh.<span style="font-weight: bold;"><br> + </span>Note that the CIECAM02 output space selection by default uses + the colorimetric table of the profile, but that the perceptual or + saturation tables may be used by selecting them using the <span + style="font-weight: bold;">-i</span> parameter. If the absolute + colorimetric intent is chosen using <span style="font-weight: + bold;">-ia</span> in combinations with <span style="font-weight: + bold;">-pj</span>, then Jab with a fixed white reference is + used, which emulates an absolute CIECAM02 Jab appearance space. <br> + <br> + <a name="s"></a> Usually device values are processed and displayed + using a normalized value range between 0.0 and 1.0 Sometimes other + systems scale them to some other range (such as 100 or 255) due to + an underlying binary representation. The <span style="font-weight: + bold;">-s</span> flag lets you input and display such data in its + normal range. For instance, if your device values have a range + between 0 and 255, use <span style="font-weight: bold;">-s 255.</span><br> + <br> + <a name="e"></a>The <b>-e</b> <i>flag</i> applies a Video encoding + to the input. See <a + href="collink.html#E"><b>-E</b></a> for + the list of encodings.<br> + <br> + <b><a name="E"></a></b>The <b>-E</b> <i>flag</i> applies a Video + encoding to the output. The possible encoding are:<br> + <br> + <small><span style="font-family: monospace;"><small><span + style="font-family: monospace;"> + n + + + + + normal RGB 0..1 full range levels (default)<br> + + t + + + + + RGB (16-235)/255 "TV" levels<br> + + 6 + + + + + Rec601 YCbCr SD (16-235,240)/255 "TV" levels<br> + + 7 + + + + + Rec709 1125/60Hz YCbCr HD (16-235,240)/255 "TV" levels<br> + + 5 + + + + + Rec709 1250/50Hz YCbCr HD (16-235,240)/255 "TV" levels<br> + + 2 + + + + + Rec2020 YCbCr UHD (16-235,240)/255 "TV" levels<br> + + C + + + + + Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 "TV" + levels<br> + </span></small></span></small><br> + <a name="k"></a> When inverting a CMYK profile, (ie. using the -fif + flag), an input PCS value can have many possible CMYK solutions. To + be able to return a unique solution, a black level (or black inking + rule) should be chosen. The choice here reflect similar choices in + black generation available in other tools (eg. <a + href="colprof.html">colprof</a>, <a href="collink.html"> collink</a>), + + + + + with the addition of two extra options.<br> + <br> + Possible arguments to the <b>-k</b> option are:<br> + <br> + <b> -kz</b> selects minimum black (0.0)<br> + <b> -kh</b> selects a black value of 0.5<br> + <b> -kx</b> selects the maximum possible black (1.0)<br> + <b> -kr</b> selects a linear black ramp, starting at minimum black + for highlight, and maximum black for shadow (equivalent to -kp 0 0 1 + 1 1). This is the default.<br> + <b> -kl</b> uses an extra (fourth) value entered after the input PCS + value, to select a black locus target between 0.0 and 1.0.<br> + <b> -kv</b> uses an extra (fourth) value entered after the input PCS + value, to select a black value target value between 0.0 and 1.0.<br> + <br> + <b><a name="kp"></a>-k p stle stpo enpo enle shape</b> allows + an arbitrary black value ramp to be defined, consisting of a + starting value (stle) for highlights, a breakpoint L value (stpo) + where it starts to transition to the shadow level, an end breakpoint + L (enpo) where it flattens out again, and the finishing black level + (enle) for the shadows. There is also a curve parameter, that + modifies the transition from stle to enle to either be concave + (ie. the transition starts gradually and and finished more + abruptly) using values 0.0-1.0, with 0.0 being most concave, or + convex (the transition starts more abruptly but finishes gradually), + using values 1.0-2.0, with 2.0 being the most convex.<br> + <br> + Typical black value generation curve with parameters something like: + -kp 0 .05 1 .9 .8<br> + <br> + <tt> 1.0 K | + enpo<br> + | - _______ -enle<br> - + + + + + + + _______ enle<br> + | - /<br> - + + + + + + + /<br> + | - /<br> - + + + + + + + /<br> + | - /<br> - + + + + + + + /<br> + | - /<br> - stle -| ------/<br> - - +-------------------<br> - 0.0 K -0.0 stpo 1.0<br> - + + + + + + + /<br> + + stle | ------/<br> + + +-------------------<br> + 0.0 K + 0.0 + stpo 1.0<br> + White -Black<br> -</tt><br> -<b><a name="kq"></a>-k q stle0 stpo0 enpo0 enle0 shape0 stle2 stpo2 -enpo2 enle2 shape2</b> is a combination of the <b>-kv</b> and <b>-kp</b> -functionality, with the black being preserved in CMYK to CMYK linking, -with the output black constrained to be between the first and second -set of curve parameters.<br> -<br> -<a name="K"></a> <span style="font-weight: bold;">-K parameters.</span> -Any of the <span style="font-weight: bold;">-k</span> options above -can use the <span style="font-weight: bold;">-K</span> version, in -which rather than a black value target being defined by the inking -rule, a black <span style="text-decoration: underline;">locus</span> -target is defined. For each lookup, the minimum possible black level -and the maximum possible black level is determined, the former -corresponding to a locus target of 0, and the latter corresponding to a -locus target of 1. For instance, at -the -white point, no black will be used in the output, even if the black -locus specifies a maximum (since the maximum amount of black that -can be used to print white is actually zero). Similarly, at the black -point, black may well be used, even if the black locus specifies -zero black (since a certain amount of black is needed to achieve the -desired density of color). <br> -<tt> </tt><span style="text-decoration: underline;"></span><br> - The <b>-g</b> flag can be used together with the <b>-fif</b> -flag, to plot -out the resulting black channel behaviour for various <b>-k</b> -or <span style="font-weight: bold;">-K </span>parameter -values.<br> -<br> -<b><a name="l"></a>-l</b> <i>tlimit</i> Sets the -total ink limit (TAC, Total Area Coverage) for the CMYK inverse forward -lookup, as a total percentage from 0% to 400%. If none is provided, it -will be estimated from the profile relcolor B2A table. The ink limit -will be in final calibrated device values if the profile includes -calibration information.<br> -<br> -<b><a name="L"></a>-L</b> <i>klimit</i> Sets the black -ink limit for the CMYK inverse forward lookup, as a total percentage -from 0% to 100%. If none is provided, it will be estimated from the -profile relcolor B2A table. The ink limit -will be in final calibrated device values if the profile includes -calibration information.<br> -<br> -<a name="a"></a> If the <b>-a</b> flag is used for inverse forward -lookups, then if -the target PCS value cannot be reproduced by the device (ie. it clips), -then the achievable, clipped PCS value is displayed.<br> -<br> -<a name="b"></a> If the <b>-b</b> flag is used for inverse forward -lookups, then out of gamut clipping will be performed in the CIECAM02 -Jab appearance colorspace, rather than L*a*b* colorspace.<br> -<br> -<a name="m"></a> The <b>-m</b> flag turns on an internal processing -option, in which the per device curve lookup table processing is merged -into the main multi-dimensional interpolation lut lookup.<br> -<br> -<a name="c"></a>Whenever PCS values are to be specified or displayed in -Jab/CIECAM02 -colorspace, a set of viewing conditions will be used to determine the -details of the conversion. The <b>-c</b> parameter allows the -specification of the viewing conditions. Viewing conditions can be -specified in two basic ways. One -is to select from the list of "pre canned", enumerated viewing -conditions, choosing one that is closest to the conditions that are -appropriate for the media type and situation. Alternatively, the -viewing conditions parameters can be specified in detail individually. -If both methods are used, them the chosen enumerated condition will be -used as a base, and its parameters will then be individually overridden.<br> -<br> -<a name="p1"></a> The final parameter is the name of the <a - href="File_Formats.html#ICC">ICC</a> profile to be used. On the -MSWindows platform a .icm extension is generally used, and on Apple or -Unix/Linux platforms a .icc extension is often used.<br> -<h3>Usage and Discussion</h3> -Typical usage for an output profile might be:<br> -<br> - xicclu -ff -ip profile.icm<br> -<br> -Normally the program is interactive, allowing the user to type in input -color -values, each number separated by a space, and the resulting output -color -being looked up and displayed after pressing return. To batch process -a -group of color values, prepare a text file containing each input value -on -a -separate line, and use the input indirection facilities of your command -line -shell to redirect this input file into the standard input of xicclu. -The -output can be captured to a file by redirecting standard output to a -file. -In most shells this would be done something like this:<br> -<br> - xicclu -ff -ip profile.icm < inputvalues.txt > -outputvalues.txt<br> -<br> -<a name="xg"></a>When plotting the neutral axis behavior, plotting the -existing B2A table -behavior would typically be done something like this:<br> -<br> - xicclu -g -fb profile.icm<br> -<br> -Exploring possible black generation and ink limiting behavior might be -done -like this:<br> -<br> - xicclu -g -fif -kp 0 .1 .9 1 .5 -l230 -L95 -profile.icm<br> -<br> -<br> -<br> -<br> -<br> -<br> -<br> -</body> + + + + + + Black<br> + </tt><br> + <b><a name="kq"></a>-k q stle0 stpo0 enpo0 enle0 shape0 stle2 stpo2 + enpo2 enle2 shape2</b> is a combination of the <b>-kv</b> and <b>-kp</b> + functionality, with the black being preserved in CMYK to CMYK + linking, with the output black constrained to be between the first + and second set of curve parameters.<br> + <br> + <a name="K"></a> <span style="font-weight: bold;">-K parameters.</span> + Any of the <span style="font-weight: bold;">-k</span> options above + can use the <span style="font-weight: bold;">-K</span> version, in + which rather than a black value target being defined by the inking + rule, a black <span style="text-decoration: underline;">locus</span> + target is defined. For each lookup, the minimum possible black level + and the maximum possible black level is determined, the former + corresponding to a locus target of 0, and the latter corresponding + to a locus target of 1. For instance, at the white point, no black + will be used in the output, even if the black locus specifies a + maximum (since the maximum amount of black that can be used to print + white is actually zero). Similarly, at the black point, black may + well be used, even if the black locus specifies zero black (since a + certain amount of black is needed to achieve the desired density of + color). <br> + <tt> </tt><span style="text-decoration: underline;"></span><br> + The <b>-g</b> flag can be used together with the <b>-fif</b> + flag, to plot out the resulting black channel behaviour for various + <b>-k</b> or <span style="font-weight: bold;">-K </span>parameter + values.<br> + <br> + <b><a name="l"></a>-l</b> <i>tlimit</i> Sets the + total ink limit (TAC, Total Area Coverage) for the CMYK inverse + forward lookup, as a total percentage from 0% to 400%. If none is + provided, it will be estimated from the profile relcolor B2A table. + The ink limit will be in final calibrated device values if the + profile includes calibration information.<br> + <br> + <b><a name="L"></a>-L</b> <i>klimit</i> Sets the black + ink limit for the CMYK inverse forward lookup, as a total percentage + from 0% to 100%. If none is provided, it will be estimated from the + profile relcolor B2A table. The ink limit will be in final + calibrated device values if the profile includes calibration + information.<br> + <br> + <a name="a"></a> If the <b>-a</b> flag is used for inverse forward + lookups, then if the target PCS value cannot be reproduced by the + device (ie. it clips), then the achievable, clipped PCS value is + displayed.<br> + <br> + <a name="b"></a> If the <b>-b</b> flag is used for inverse forward + lookups, then out of gamut clipping will be performed in the + CIECAM02 Jab appearance colorspace, rather than L*a*b* colorspace.<br> + <br> + <a name="m"></a> The <b>-m</b> flag turns on an internal processing + option, in which the per device curve lookup table processing is + merged into the main multi-dimensional interpolation lut lookup.<br> + <br> + <a name="c"></a>Whenever PCS values are to be specified or displayed + in Jab/CIECAM02 colorspace, a set of viewing conditions will be used + to determine the details of the conversion. The <b>-c</b> parameter + allows the specification of the viewing conditions. Viewing + conditions can be specified in two basic ways. One is to select from + the list of "pre canned", enumerated viewing conditions, choosing + one that is closest to the conditions that are appropriate for the + media type and situation. Alternatively, the viewing conditions + parameters can be specified in detail individually. If both methods + are used, them the chosen enumerated condition will be used as a + base, and its parameters will then be individually overridden.<br> + <br> + <a name="p1"></a> The final parameter is the name of the <a + href="File_Formats.html#ICC">ICC</a> profile to be used. On the + MSWindows platform a .icm extension is generally used, and on Apple + or Unix/Linux platforms a .icc extension is often used.<br> + <h3>Usage and Discussion</h3> + Typical usage for an output profile might be:<br> + <br> + xicclu -ff -ip profile.icm<br> + <br> + Normally the program is interactive, allowing the user to type in + input color values, each number separated by a space, and the + resulting output color being looked up and displayed after pressing + return. To batch process a group of color values, prepare a text + file containing each input value on a separate line, and use the + input indirection facilities of your command line shell to redirect + this input file into the standard input of xicclu. The output can be + captured to a file by redirecting standard output to a file. In most + shells this would be done something like this:<br> + <br> + xicclu -ff -ip profile.icm < inputvalues.txt + > outputvalues.txt<br> + <br> + <a name="xg"></a>When plotting the neutral axis behavior, plotting + the existing B2A table behavior would typically be done something + like this:<br> + <br> + xicclu -g -fb profile.icm<br> + <br> + Exploring possible black generation and ink limiting behavior might + be done like this:<br> + <br> + xicclu -g -fif -kp 0 .1 .9 1 .5 -l230 -L95 + profile.icm<br> + <br> + <br> + <br> + <br> + <br> + <br> + <br> + </body> </html> |