From c0b89ac5bfb90835ef01573267020e42d4fe070c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Sun, 23 Aug 2015 12:17:05 +0200 Subject: Imported Upstream version 1.8.0 --- doc/invprofcheck.html | 295 ++++++++++++++++++++++++++++---------------------- 1 file changed, 165 insertions(+), 130 deletions(-) mode change 100644 => 100755 doc/invprofcheck.html (limited to 'doc/invprofcheck.html') diff --git a/doc/invprofcheck.html b/doc/invprofcheck.html old mode 100644 new mode 100755 index bd611b3..65502ee --- a/doc/invprofcheck.html +++ b/doc/invprofcheck.html @@ -1,133 +1,168 @@ - - invprofcheck - - - - -

profile/invprofcheck

-

Summary

-Check ICC forward against reverse -lookup. -
-

Usage Summary

-usage: invprofcheck -[-options] profile.icm
- -v [level]   -verbosity level (default 1), 2 to print each DE
- -l -limit     set total ink -limit (estimate by default)
- -L -klimit    set black channel ink -limit (estimate by default)
- -h           -high res test (27)
- -u           -Ultra high res test (61)
- -R res       Specific grid -resolution
- -c           -Show CIE94 delta E values
- -k           -Show CIEDE2000 delta E values
- -w           -create X3DOM visualisation (profile.x3d.html)
- -x           -Use X3DOM axes
- -e           -Color vectors acording to delta E
- profile.icm  -Profile to check -
-

Usage Details and Discussion

-invprofcheck provides a way of checking how well an ICC profile inverse transform inverts -the forward transform. For devices with more than 4 channels, a total -ink limit is assumed, and (if no -l -parameter is given) a reasonable number is deduced from the reverse -table. A grid of device values is created, and the transform from -PCS->device, and then device->PCS is computed in L*a*b* space. -The average, maximum and RMS error delta E values are computed and -displayed in the chosen delta E metric. A X3DOM plot of the error vectors can -be created. invprofcheck tries -to only test in-gamut color values. Note that because it scans a device -grid, for a CMYK device, the density of test points will be -progressively higher in the dark regions, and the average and RMS -values will be distorted by the denser sampling.
-
-The -v flag prints out extra information during the checking. A -value greater than 1 will print the color values of each test point.
-
-The -l flag allows setting a total ink limit (TAC) for printing -devices. If a device has a total ink limit, and hasn't been -characterised with device values above this limit, then plotting the -gamut in these areas will almost certainly be misleading. The ink limit -will be in final calibrated device values if the profile includes -calibration information.
-
-The -L flag allows setting a black channel ink limit for -printing -devices. If a device has a black ink limit, and hasn't been -characterised with device values above this limit, then plotting the -gamut in these areas will almost certainly be misleading. The black ink -limit -will be final calibrated device values if the profile -includes calibration information.
-
-The default device grid is relativy low, and 11 (ie. 11 x 11 x 11 for -an RGB device, 11 x 11 x 11 x 11 for a CMYK device etc.).
-
-The -h flag selects a higher -device grid resolution of 27.
-
-The -u flag selects an -extremely high device grid resolution of 61. This will probably take a -long time to run.
-
-The -G res option allows a -specific grid resolution to be used.
-
-The -c option causes the error differences to be -displayed -in CIE94 delta E, rather than plain L*a*b* delta E. CIE94 delta E has a -closer -correspondence with perceived color differences than the default CIE76 -delta E values.
-
-The -k option causes the error differences to be -displayed -in CIEDE2000 delta E, rather than plain L*a*b* delta E. CIEDE2000 delta -E has a -closer -correspondence with perceived color differences than either CIE76 or -CIE94 delta E values.
-
-The -w creates a X3DOM 3D -visualization -of the differences between the test points and the profiles prediction -of -the resulting colors.
-
-The -x flag adds Lab axes to the X3DOM output.
-
-The -e flag causes the error -vectors in the X3DOM output to be color coded according to their -lengths, from longest to shortest: yellow, red, magenta, blue, cyan and -green.
-
-
-
- + + invprofcheck + + + + +

profile/invprofcheck

+

Summary

+ Check ICC forward against + reverse + lookup. +
+

Usage Summary

+ usage: invprofcheck + [-options] profile.icm
+  -v [level]   + verbosity level (default 1), 2 to print each DE
+  -l + limit     set total ink + limit (estimate by default)
+  -L +klimit +    set black channel ink + limit (estimate by default)
+  -h           +high + res test (27)
+  -u           +Ultra + high res test (61)
+  -R res       Specific grid + resolution
+  -I           + Do bwd to fwd check
+  -c           +Show + CIE94 delta E values
+  -k           +Show + CIEDE2000 delta E values
+  -w           +create + X3DOM visualisation (profile.x3d.html)
+  -x           +Use + X3DOM axes
+  -e           +Color + vectors acording to delta E
+  profile.icm  + Profile to check +
+

Usage Details and Discussion

+ invprofcheck provides a way of checking how well an ICC profile inverse transform + inverts + the forward transform. For devices with more than 4 channels, a + total + ink limit is assumed, and (if no -l + parameter is given) a reasonable number is deduced from the reverse + table. A grid of device values is created, and the transform from + PCS->device, and then device->PCS is computed in L*a*b* space. + The average, maximum and RMS error delta E values are computed and + displayed in the chosen delta E metric. A X3DOM plot of the error vectors + can + be created. invprofcheck + tries + to only test in-gamut color values. Note that because it scans a + device + grid, for a CMYK device, the density of test points will be + progressively higher in the dark regions, and the average and RMS + values will be distorted by the denser sampling.
+
+ The -v flag prints out extra information during the + checking. A + value greater than 1 will print the color values of each test point.
+
+ The -l flag allows setting a total ink limit (TAC) for + printing + devices. If a device has a total ink limit, and hasn't been + characterised with device values above this limit, then plotting the + gamut in these areas will almost certainly be misleading. The ink + limit + will be in final calibrated device values if the profile includes + calibration information.
+
+ The -L flag allows setting a black channel ink limit for + printing + devices. If a device has a black ink limit, and hasn't been + characterised with device values above this limit, then plotting the + gamut in these areas will almost certainly be misleading. The black + ink + limit + will be final calibrated device values if the profile + includes calibration information.
+
+ The default device grid is relativy low, and 11 (ie. 11 x 11 x 11 + for + an RGB device, 11 x 11 x 11 x 11 for a CMYK device etc.).
+
+ The -h flag selects a + higher + device grid resolution of 27.
+
+ The -u flag selects an + extremely high device grid resolution of 61. This will probably take + a + long time to run.
+
+ The -G res option allows a + specific grid resolution to be used.
+
+ If the -I option is used, then the grid is in L*a*b* space, + so out of gamut clipping behavior can be examined. Delta E's will be + high due to the clipping.
+
+ The -c option causes the error differences to be + displayed + in CIE94 delta E, rather than plain L*a*b* delta E. CIE94 delta E + has a + closer + correspondence with perceived color differences than the default + CIE76 + delta E values.
+
+ The -k option causes the error differences to be + displayed + in CIEDE2000 delta E, rather than plain L*a*b* delta E. CIEDE2000 + delta + E has a + closer + correspondence with perceived color differences than either CIE76 or + CIE94 delta E values.
+
+ The -w creates a X3DOM + 3D + visualization + of the differences between the test points and the profiles + prediction + of + the resulting colors.
+
+ The -x flag adds Lab axes to the X3DOM output.
+
+ The -e flag causes the + error + vectors in the X3DOM output to be color coded according to their + lengths, from longest to shortest: yellow, red, magenta, blue, cyan + and + green.
+
+
+
+ -- cgit v1.2.3