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Diffstat (limited to 'doc/colprof.html')
| -rwxr-xr-x[-rw-r--r--] | doc/colprof.html | 1076 |
1 files changed, 435 insertions, 641 deletions
diff --git a/doc/colprof.html b/doc/colprof.html index d5df56e..ac80c3b 100644..100755 --- a/doc/colprof.html +++ b/doc/colprof.html @@ -15,8 +15,8 @@ [ Note that currently, Monochrome and N-Color profiles are not supported. ]<br> <h3>Usage Summary</h3> - <tt><small>colprof [-<i>options</i>] inoutfile<br> - <a href="#v">-v</a> + <tt>colprof [-<i>options</i>] inoutfile<br> + <a href="#v">-v</a> @@ -54,21 +54,6 @@ - Verbose mode<br> - <a href="#A">-A "manufacturer"</a> Set the - manufacturer description string<br> - <a href="#M">-M "model"</a> - Set the model - description string<br> - <a href="#D">-D "description"</a> Set the - profile Description string (Default "<span - style="font-style: italic;">inoutfile</span>")<br> - <a href="#C">-C "copyright"</a> Set the - copyright string<br> - <a href="#Za">-Z tmnb </a> - Attributes: - Transparency, Matte, Negative, BlackAndWhite<br> - </small></tt><tt><small> <a href="colprof.html#Zi">-Z prsa</a> @@ -79,6 +64,30 @@ + Verbose mode<br> + <a href="#A">-A "manufacturer"</a> Set the + manufacturer description string<br> + <a href="#M">-M "model"</a> + Set the model + description string<br> + <a href="#D">-D "description"</a> Set the + profile Description string (Default "<span + style="font-style: italic;">inoutfile</span>")<br> + <a href="#C">-C "copyright"</a> Set the + copyright string<br> + <a href="#Za">-Z tmnb </a> + Attributes: + Transparency, Matte, Negative, BlackAndWhite<br> + </tt><tt> <a href="colprof.html#Zi">-Z prsa</a> + Default intent: + Perceptual, Rel. Colorimetric, Saturation, Abs. Colorimetric</tt><tt><br> + </tt><tt> </tt><tt> <a href="#q">-q lmhu</a> + Quality - Low, Medium (def), + High, Ultra<br> + <a href="#b">-b [lmhun]</a> + Low quality B2A table - or specific B2A quality or none for + input device<br> + <a href="#ni">-ni</a> @@ -96,16 +105,6 @@ - Default - intent: Perceptual, Rel. Colorimetric, Saturation, Abs. - Colorimetric</small></tt><tt><br> - </tt><tt> </tt><tt><small> <a href="#q">-q lmhu</a> - Quality - Low, - Medium (def), High, Ultra<br> - <a href="#b">-b [lmhun]</a> - Low quality B2A table - or specific B2A quality or none - for input device<br> - <a href="#ni">-ni</a> @@ -136,6 +135,12 @@ + Don't create input (Device) shaper + curves<br> + </tt><tt> <a href="#np">-np</a> + + Don't create input (Device) grid position curves</tt><tt><br> + </tt><tt> </tt><tt> <a href="#no">-no</a> @@ -143,12 +148,6 @@ - Don't create input (Device) shaper - curves<br> - </small></tt><tt><small> <a href="#np">-np</a> - - Don't create input (Device) grid position curves</small></tt><tt><br> - </tt><tt> </tt><tt><small> <a href="#no">-no</a> @@ -186,300 +185,59 @@ - Don't create output (PCS) shaper - curves<br> - </small></tt><tt><small> <a href="#nc">-nc</a> - - Don't put the input .ti3 data in the profile</small></tt><tt><br> - </tt><tt> </tt><tt><small> <a href="#k">-k zhxr</a> - Black Ink generation: z = - zero K,<br> - - - - - -h -= -0.5 -K -(def), -x -= - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - max K, r = ramp K<br> - <a href="#kp">-k p stle stpo enpo enle shape</a><br> - - - - - -stle: -K -level -at -White -0.0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1.0<br> - + Don't create output (PCS) shaper + curves<br> + </tt><tt> <a href="#nc">-nc</a> + + Don't put the input .ti3 data in the profile</tt><tt><br> + </tt><tt> </tt><tt> <a href="#k">-k zhxr</a> + Black Ink generation: z = zero K,<br> + + h = 0.5 K (def), x = max + K, r = ramp K<br> + <a href="#kp">-k p stle stpo enpo enle shape</a><br> + + stle: K level at White 0.0 + - 1.0<br> + + stpo: start point of transition + Wh 0.0 - Bk 1.0<br> + + enpo: End point of transition + Wh 0.0 - Bk 1.0<br> + + enle: K level at Black 0.0 - + 1.0<br> + + shape: 1.0 = straight, 0.0-1.0 + concave, 1.0-2.0 convex<br> + <a href="#K">-K parameters</a> + Same as -k, but target is K locus rather than K value itself<br> + <a href="#l">-l <i>tlimit</i></a> + override CMYK total ink limit, 0 - 400% (default from + .ti3)<br> + <a href="#L">-L <i>klimit</i></a> + override black ink limit, 0 - 100% (default from + .ti3)<br> + <a href="#a">-a lxXgsmGS</a> + Algorithm type override<br> + + l = Lab cLUT (def.), x = XYZ + cLUT, X = display XYZ cLUT + matrix<br> + + g = gamma+matrix, s = + shaper+matrix, m = matrix only,<br> + + G = single gamma+matrix, S = + single shaper+matrix<br> + <a href="#u">-u</a> - -stpo: -start -point -of -transition -Wh - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 - Bk 1.0<br> - - - - - - -enpo: -End -point -of -transition -Wh - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 - Bk 1.0<br> - - - - - - -enle: -K -level -at -Black - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 - 1.0<br> - - - - - - -shape: -1.0 -= -straight, -0.0-1.0 -concave, - - - - - - - - - - - - - - - - - - - - - - - - - @@ -492,8 +250,6 @@ concave, - 1.0-2.0 convex<br> - <a href="#K">-K parameters</a> @@ -521,95 +277,24 @@ concave, - - Same as -k, but target is K locus rather than K value itself<br> - <a href="#l">-l <i>tlimit</i></a> - override CMYK total ink limit, 0 - 400% - (default from .ti3)<br> - <a href="#L">-L <i>klimit</i></a> - override black ink limit, 0 - 100% (default - from .ti3)<br> - <a href="#a">-a lxXgsmGS</a> - Algorithm type override<br> - - - - - - -l -= -Lab -cLUT -(def.), - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - x = XYZ cLUT, X = display XYZ cLUT + matrix<br> - - - - - - -g -= -gamma+matrix, -s -= - - - - - - - - - - - - - - - - - - - + If input profile, auto scale WP to allow extrapolation</tt><br> + <tt><tt> <a href="colprof.html#ua">-ua</a> + + If input profile, force Absolute Colorimetric + intent</tt><br> + </tt><tt> </tt><tt> <a href="#uc">-uc</a> + + If input profile, clip cLUT values above WP<br> + </tt><tt><a href="#U">-U <span style="font-style: italic;">scale</span></a> + If input + profile, scale media white point by scale</tt><tt><br> + </tt><tt> </tt><tt> </tt><tt><a href="#R">-R</a></tt><tt> +Restrict +white +<= +1.0, +black +and @@ -628,19 +313,6 @@ s - shaper+matrix, m = matrix only,<br> - - - - - - -G -= -single -gamma+matrix, -S -= @@ -670,6 +342,8 @@ S + primaries to be +ve</tt><tt><br> + <a href="#B">-B X,Y,Z</a> @@ -678,14 +352,6 @@ S - single shaper+matrix<br> - <a href="#u">-u</a> - - - - - - @@ -700,6 +366,8 @@ S + Display Black Point override hack<br> + <a href="#V">-V demphasis</a> @@ -713,21 +381,6 @@ S - If input profile, auto scale WP to allow extrapolation</small></tt><tt><br> - </tt><tt> </tt><tt><small><small> <a href="#uc">-uc</a> - - If input profile, clip cLUT values above WP<br> - </small> </small></tt><tt><small><a href="#U">-U <span - style="font-style: italic;">scale</span></a> - If input - profile, scale media white point by scale</small></tt><tt><br> - </tt><tt> </tt><tt> </tt><tt><a href="#R">-R</a></tt><tt> -Restrict -white -<= -1.0, -black -and @@ -743,6 +396,12 @@ and + Degree of dark region cLUT grid emphasis 1.0-3.0 (default 1.00 = + none)<br> + </tt><tt> </tt><tt><a href="#f">-f [<i>illum</i>]</a> + Use Fluorescent + Whitening Agent compensation [opt. simulated inst. illum.:<br> + @@ -765,8 +424,6 @@ and - primaries to be +ve</tt><tt><br> - <a href="#B">-B X,Y,Z</a> @@ -779,11 +436,33 @@ and - Display Black Point override hack<br> - <a href="#V">-V demphasis</a> + M0, M1, M2, </tt><tt>A, C, D50 (def.), D50M2, D65, F5, F8, F10 or + file.sp ]</tt><tt><br> + </tt><tt> <a href="#i">-i <i>illum</i></a> + Choose illuminant for computation of CIE XYZ + from spectral data & FWA:<br> + + A, C, D50 (def.), D50M2, D65, + F5, F8, F10 or file.sp<br> + <a href="#o">-o <i>observ</i></a> + Choose CIE Observer for spectral data:<br> + + 1931_2 </tt><tt>(def.)</tt><tt>, + 1964_10, 2012_2, 2012_10, S&B 1955_2, shaw, J&V 1978_2 or + file.cmf<br> + <a href="#r">-r avgdev</a> + Average deviation of device+instrument readings as a percentage + (default 0.5%)<br> + <a href="#s">-s src.icm|cperc</a> Apply gamut mapping + to output profile perceptual B2A table for given source, or + compression percentage<br> + <a href="#S">-S src.icm|experc</a> Apply gamut mapping + to output profile perceptual and saturation B2A table, or + expansion percentage<br> + <a href="#nP">-nP</a> @@ -799,12 +478,6 @@ and - Degree of dark region cLUT grid emphasis 1.0-3.0 (default 1.00 = - none)<br> - </tt><tt> </tt><tt><small><small><a href="#f">-f [<i>illum</i>]</a> - Use Fluorescent - Whitening Agent compensation [opt. simulated inst. illum.:<br> - @@ -832,14 +505,14 @@ and - M0, M1, M2, </small></small></tt><tt><small><small><small>A, - C, D50 (def.), D50M2, D65, F5, F8, F10 or file.sp ]</small></small></small></tt><tt><br> - </tt><tt><small><small><small><small> <a href="#i">-i <i>illum</i></a> + Use colormetric source gamut to make output profile perceptual + table<br> + <a href="#nS">-nS</a> @@ -862,19 +535,6 @@ and - Choose illuminant for - computation of CIE XYZ from spectral data & FWA:<br> - - - - - - -A, -C, -D50 -(def.), -D50M2, @@ -900,12 +560,19 @@ D50M2, + Use colormetric source gamut to make output profile saturation + table<br> + <a href="#g">-g src.gam</a> + Use source image gamut + as well for output profile gamut mapping<br> + <a href="#p">-p aprof.icm,...</a> Incorporate + abstract profile(s) into output tables<br> + <a href="#t">-t intent</a> + Override gamut mapping + intent for output profile perceptual table:<br> + <a href="#T">-T intent</a> - D65, F5, F8, F10 or file.sp</small></small></small><br> - <a href="#o">-o <i>observ</i></a> - Choose CIE Observer for spectral data:<br> - @@ -943,18 +610,6 @@ D50M2, - 1931_2 </small></tt><tt><small>(def.)</small></tt><tt><small>, - 1964_10, S&B 1955_2, shaw, J&V 1978_2<br> - <a href="#r">-r avgdev</a> - Average deviation of device+instrument readings as - a percentage (default 0.5%)<br> - <a href="#s">-s src.icm|cperc</a> Apply gamut - mapping to output profile perceptual B2A table for given source, - or compression percentage<br> - <a href="#S">-S src.icm|experc</a> Apply gamut - mapping to output profile perceptual and saturation B2A table, - or expansion percentage<br> - <a href="#nP">-nP</a> @@ -963,6 +618,24 @@ D50M2, + Override gamut mapping intent for output profile saturation table:<br> + </tt><tt> + + a - Absolute Colorimetric (in Jab) [ICC Absolute Colorimetric]<br> + + aw - Absolute Colorimetric + (in Jab) with scaling to fit white point<br> + + aa - Absolute Appearance<br> + + r - White Point Matched Appearance + [ICC Relative Colorimetric]<br> + + la - Luminance matched Appearance<br> + + p - Perceptual (Preferred) [ICC + Perceptual]<br> + </tt><tt> @@ -992,9 +665,6 @@ D50M2, - Use colormetric source gamut to make output profile perceptual - table<br> - <a href="#nS">-nS</a> @@ -1013,6 +683,8 @@ D50M2, + pa - Perceptual Appearance</tt><br> + <tt><tt> @@ -1028,21 +700,19 @@ D50M2, + lp - Luminance Preserving Perceptual</tt><br> + </tt><tt> </tt><tt> + ms - Saturation<br> + + s - Enhanced Saturation [ICC + Saturation]<br> + + al - Absolute Colorimetric (Lab)</tt><tt><br> + - Use colormetric source gamut to make output profile saturation - table<br> - <a href="#g">-g src.gam</a> - Use source image - gamut as well for output profile gamut mapping<br> - <a href="#p">-p aprof.icm,...</a> Incorporate - abstract profile(s) into output tables<br> - <a href="#t">-t intent</a> - Override gamut - mapping intent for output profile perceptual table:<br> - <a href="#T">-T intent</a> @@ -1074,31 +744,14 @@ D50M2, + rl - White Point Matched Colorimetric (Lab)<br> + <a href="#c">-c viewcond</a> - Override gamut mapping intent for output profile saturation - table:<br> - </small></tt><tt><small> - - a - Absolute Colorimetric (in Jab) [ICC Absolute Colorimetric]<br> - - aw - Absolute Colorimetric - (in Jab) with scaling to fit white point<br> - - aa - Absolute Appearance<br> - - r - White Point Matched - Appearance [ICC Relative Colorimetric]<br> - - la - Luminance matched Appearance<br> - - p - Perceptual (Preferred) [ICC - Perceptual]<br> - </small></tt><tt><small> @@ -1136,15 +789,14 @@ D50M2, - pa - Perceptual Appearance</small></tt><br> - <tt><tt><small> + set input viewing conditions for output profile CIECAM02 gamut + mapping,<br> + - lp - Luminance Preserving Perceptual</small></tt><br> - </tt><tt> </tt><tt><small> @@ -1182,13 +834,6 @@ D50M2, - ms - Saturation<br> - - s - Enhanced Saturation [ICC - Saturation]<br> - - al - Absolute Colorimetric (Lab)</small></tt><tt><small><br> - @@ -1198,6 +843,8 @@ D50M2, + either an enumerated choice, or a parameter<br> + <a href="#d">-d viewcond</a> @@ -1214,8 +861,6 @@ D50M2, - rl - White Point Matched Colorimetric (Lab)<br> - <a href="#c">-c viewcond</a> @@ -1247,15 +892,15 @@ D50M2, + set output viewing conditions for output profile CIECAM02, gamut + mapping<br> + - set input viewing conditions for output profile CIECAM02 gamut - mapping,<br> - @@ -1293,12 +938,12 @@ D50M2, - either an enumerated choice, or a parameter<br> - <a href="#d">-d viewcond</a> + either an enumerated choice, or a parameter:value change<br> + @@ -1332,9 +977,6 @@ D50M2, - set output viewing conditions for output profile CIECAM02, gamut - mapping<br> - @@ -1349,6 +991,8 @@ D50M2, + Also sets out of gamut clipping CAM space.<br> + @@ -1372,8 +1016,6 @@ D50M2, - either an enumerated choice, or a parameter:value change<br> - @@ -1398,12 +1040,44 @@ D50M2, + Enumerated Viewing Conditions:<br> + </tt><tt> + </tt><tt><tt>pc - Critical print evaluation environment + (ISO-3664 P1)</tt><tt><br> + + </tt>pp - Practical Reflection Print (ISO-3664 P2)<br> + + pe - Print evaluation environment (CIE + 116-1995)<br> + </tt><tt> + pm - Print evaluation with partial Mid-tone + adapation</tt><tt><br> + </tt><tt> </tt><tt> + mt - Monitor in typical work environment<br> + + mb - Monitor in bright work environment<br> + + md - Monitor in darkened work environment<br> + + jm - Projector in dim environment<br> + + jd - Projector in dark environment<br> + + pcd - Photo CD - original scene outdoors<br> + + ob - Original scene - Bright Outdoors<br> + + cx - Cut Sheet Transparencies on a viewing box</tt><tt><br> + + s:surround n = auto, a = average, m = + dim, d = dark,<br> + @@ -1411,8 +1085,6 @@ D50M2, - Also sets out of gamut clipping CAM space.<br> - @@ -1450,40 +1122,35 @@ D50M2, - Enumerated Viewing Conditions:<br> - </small></tt><tt><small> - pp - Practical Reflection Print (ISO-3664 - P2)<br> - - pe - Print evaluation environment (CIE - 116-1995)<br> - </small></tt><tt><small> - pc - Critical print evaluation - environment (ISO-3664 P1)</small></tt><tt><br> - </tt><tt> </tt><tt><small> - mt - Monitor in typical work - environment<br> - - mb - Monitor in bright work environment<br> - - md - Monitor in darkened work environment<br> - - jm - Projector in dim environment<br> - - jd - Projector in dark environment<br> - - pcd - Photo CD - original scene outdoors<br> - - ob - Original scene - Bright Outdoors<br> - - cx - Cut Sheet Transparencies on a viewing box</small></tt><tt><small><br> - - s:surround n = auto, a = average, m = - dim, d = dark,<br> - + + c = transparency (default average)<br> + + + w:X:Y:Z Adapted white point as + XYZ (default media white)<br> + + + w:x:y Adapted + white point as x, y<br> + + a:adaptation Adaptatation + luminance in cd.m^2 (default 50.0)<br> + + b:background Background % of + image luminance (default 20)<br> + + l:imageewhite Image + white in cd.m^2 if surround = auto (default 250)</tt><br> + <tt><span style="font-family: monospace;"><span style="font-family: + monospace;"> + + f:flare Flare light % of + image luminance (default 0)<br> + </span> </span><span + style="font-family: monospace;"> @@ -1518,39 +1185,49 @@ D50M2, - - c = transparency (default average)<br> - - - w:X:Y:Z Adapted white point - as XYZ (default media white)<br> - - - w:x:y Adapted - white point as x, y<br> - - a:adaptation Adaptatation - luminance in cd.m^2 (default 50.0)<br> - - b:background Background % - of image luminance (default 20)<br> - - - l:imageewhite Image white in cd.m^2 if surround = auto - (default 250)</small></tt><br> - <tt><small><small><span style="font-family: monospace;"><small><span - style="font-family: monospace;"> - - - f:flare Flare light - % of image luminance (default 0)<br> - </span></small> + g:glare Glare light % of + ambient (default 5)</span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> + + + g:X:Y:Z Glare color as XYZ + (default media white)</span><br style="font-family: monospace;"> + <span style="font-family: monospace;"> + + + g:x:y Glare + color as x, y<br> + </span></tt><tt><span style="font-family: monospace;"><tt><span + style="font-family: monospace;"><span style="font-family: + monospace;"> + + + h:hkscale Helmholtz-Kohlrausch + effect scale factor (default 1.0)<br> + </span> </span><span style="font-family: monospace;"> + m:mtaf Mid-tone + partial adaptation factor (default 0.0)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + + + m:X:Y:Z Mid-tone + Adaptation white as XYZ (default D50)</span><br + style="font-family: monospace;"> + <span style="font-family: monospace;"> + + + m:x:y + Mid-tone Adaptation white as x, y</span></tt></span> <br> + <a href="#P">-P</a> + + @@ -1570,22 +1247,6 @@ D50M2, - g:glare Glare light % of - ambient (default 5)</span><br style="font-family: - monospace;"> - <span style="font-family: monospace;"> - - - g:X:Y:Z Glare color as - XYZ (default media white)</span><br style="font-family: - monospace;"> - <span style="font-family: monospace;"> - - - g:x:y Glare - color as x, y</span></small> <br> - <a href="#P">-P</a> - @@ -1613,6 +1274,9 @@ D50M2, + Create gamut gammap_p.x3d.html and gammap_s.x3d.html diagostics<br> + </tt><tt> <a href="#O">-O outputfile</a> +Override @@ -1623,9 +1287,6 @@ D50M2, - Create gamut gammap_p.x3d.html and gammap_s.x3d.html diagostics<br> - </small></tt><tt><small> <a href="#O">-O outputfile</a> -Override @@ -1663,10 +1324,10 @@ Override - the default output filename & extension.</small></tt><tt><br> - </tt><tt> </tt><tt><small> <a href="#p1"><i>inoutfile</i></a> - Base name for - input.ti3/output.icc file</small></tt><br> + the default output filename & extension.</tt><tt><br> + </tt><tt> </tt><tt> <a href="#p1"><i>inoutfile</i></a> + Base name for + input.ti3/output.icc file</tt><br> <h3>Options<br> </h3> <b><a name="v"></a>-v</b> Turn on verbose mode. Gives progress @@ -1824,6 +1485,16 @@ the + + + + + + + + + + device and CIE/spectral sample data and calibration curves used to create a profile is stored in the <span style="font-weight: bold;">'targ'</span> text tag in the resulting ICC profile. To suppress this and make the @@ -1864,6 +1535,16 @@ the + + + + + + + + + + </span>flag. <span style="font-weight: bold;">Note</span> that this will then preclude final calibrated device value ink limits from being computed for the resulting profile in subsequent use (ie. <a @@ -1939,6 +1620,16 @@ the + + + + + + + + + + | _______ enle<br> @@ -1979,6 +1670,16 @@ the + + + + + + + + + + | /<br> @@ -2018,6 +1719,16 @@ the + + + + + + + + + + | /<br> @@ -2057,6 +1768,16 @@ the + + + + + + + + + + | /<br> @@ -2096,6 +1817,16 @@ the + + + + + + + + + + | /<br> stle | ------/<br> @@ -2143,6 +1874,16 @@ White &nb + + + + + + + + + + Black<br> </tt> <br> For minimum sensitivity of printed output to the lighting spectrum, @@ -2261,19 +2002,28 @@ White &nb lut table. Using the <b>-u</b> flag causes the media white point to be automatically scaled (using the same type of scaling as the <span style="font-weight: bold;">-U scale</span> option) to avoid - clipping values up to full device white. This flag can be useful - when an input profile is needed for using a scanner as a "poor mans" - colorimeter, or if the white point of the test chart doesn't - represent the white points of media that will be used in practice, - and that white point adjustment will be done individually in some - downstream application.<br> + clipping values up to full device white, while still correcting the + hue. This flag can be useful when the white point of the test chart + doesn't represent the white points of media that will be used in + practice, and that white point adjustment will be done individually + in some downstream application.<br> + <br> + <a name="ua"></a> <span style="font-weight: bold;">-ua:</span> For + input profiles, this flag forces the effective intent to be Absolute + Colorimetric even when used with Relative Colorimetric intent + selection in a CMM, by setting a D50 white point tag. This + also has the effect of preserving the conversion of colors whiter + than the white patch of the test chart without clipping them + (similar to the <b>-u</b> flag), but does not hue correct white. + This flag can be useful when an input profile is needed for using a + scanner as a "poor mans" colorimeter.<br> <br> <a name="uc"></a> <span style="font-weight: bold;">-uc:</span> For input profiles it is sometimes desirable that any highlights - brighter than the white point, map exactly to white, and this option - post processes the cLUT entries to ensure this is the case. Note - that due to the finite nature of the cLUT grid, this may affect the - accuracy of colors near the light surface of the device gamut.<br> + brighter than the white point, map (clip) exactly to white, and this + option post processes the cLUT entries to ensure this is the case. + Note that due to the finite nature of the cLUT grid, this may affect + the accuracy of colors near the light surface of the device gamut.<br> <br> <a name="U"></a><span style="font-weight: bold;"> -U <span style="font-style: italic;">scale</span>:</span> Input profiles @@ -2406,6 +2156,16 @@ White &nb + + + + + + + + + + Violet</span> spectral content, otherwise FWA compensation won't work properly. This means you ideally need to measure your illuminant spectrum using an instrument that can measure down to @@ -2505,13 +2265,18 @@ White &nb <b> 1931_2</b> selects the standard CIE 1931 2 degree observer. The default.<br> <b>1964_10</b> selects the standard CIE 1964 10 degree - observer.<br> + observer<br> + <b> 2012_2</b> selects the proposed CIE 2012 2 degree observer<br> + <b>2012_10</b> selects the proposed CIE 2012 10 degree + observer<br> <b>1955_2</b> selects the Stiles and Birch 1955 2 degree observer<br> <b>1978_2 </b>selects the Judd and Voss 1978 2 degree observer<br> <b>shaw</b> selects the Shaw and Fairchild 1997 2 degree observer<br> + <i><b>file.cmf</b></i> selects an observer specified by the + given <a href="File_Formats.html#.cmf">.cmf</a> file.<br> <br> Note that if an observer other than 1931 2 degree is chosen, the resulting ICC profile will not be standard, and cannot be freely @@ -2566,7 +2331,7 @@ White &nb be compressed to fit into it. The same percentage is used for expansion if a saturation table is generated, or a separate percentage can be specified by including both a <b>-s</b> and <b>-S</b> - percentage. You can optionally specify <u>both</u> and input ICC + percentage. You can optionally specify <u>both</u> an input ICC profile and a general compression percentage by using the -S option twice, in which case the input profile determines just the luminance range mapping, with the percentage determining the gamut volume @@ -2596,6 +2361,14 @@ White &nb <b>Note</b> that an input, output, display or device colororspace profile should be specified, not a non-device colorspace, device link, abstract or named color profile.<br> + <b>Note</b> that specifying a very large gamut colorspace as the + source gamut (i.e. <b>ProPhoto</b> etc.) is probably <u><b>NOT</b></u> + what you want to do, since unless the source images have a similar + very large gamut to that of the colorspace, they will end up getting + over compressed and come out looking dull. Instead use a source + profile that has a gamut more representative of the images gamut, <b>or</b> + you should provide a gamut using the the <a href="#g">-g parameter</a>. + <br> <br> <a name="nP"></a><span style="font-weight: bold;">-nP</span>: Normally when a source profile is provided to define the source @@ -2740,7 +2513,11 @@ White &nb the resulting <a href="File_Formats.html#ICC">ICC</a> output profile (.icm extension on the MSWindows platform, .icc on Apple or Unix platforms). The <span style="font-weight: bold;">-O</span> - parameter will override this default. + parameter will override this default.<br> + <br> + For information on typical usage, see the <a + href="file:///Users/graeme/src/argyll/doc/Scenarios.html">Typical + Usage Scenarios</a> page. <h3><a name="Di"></a>Discussion</h3> Note that monochrome profiling isn't currently supported. It may be supported sometime in the future.<br> @@ -2781,6 +2558,23 @@ White &nb subsequent evaluation of ink limits can compute the final calibrated device values.<br> <br> + The viewing condition parameter <b>m:</b> is a hack, intended to + address certain situations involving the use of papers containing + FWA/OBE brighteners when viewed in an environment that has a very + noticeably warmer white point than the paper itself under the + illuminant. While the white point will remain that of the paper, it + allows the mid-tones to be partially adapted to a warmer white + point, possibly reducing visual discrepancy. NOTE though, that this + viewing situation doesn't often arise in real world viewing of such + media, as such documents are typically viewed in isolation or + against a background of other pieces of the same paper. Note that it + is a trap to evaluate such FWA/OBE rich paper using standard + proofing viewing conditions, since they deliberately use a + spectrally flat grey surround, unnaturally emphasizing the white + point difference between FWA/OBE rich papers and spectrally flat + neutrals, something that isn't present in real world conditions. The + <b>pm</b> preset condition has mtaf value of 0.7, and Wxyz2 of D50.<br> + <br> <br> <br> <br> |