From f6b8e0eae4374f339487a33e3e4fe5462d5816e1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Sat, 25 Nov 2017 10:16:00 +0100 Subject: New upstream version 2.0.0 --- doc/synthread.html | 347 ++++++++++++++++++++++++++++------------------------- 1 file changed, 185 insertions(+), 162 deletions(-) mode change 100644 => 100755 doc/synthread.html (limited to 'doc/synthread.html') diff --git a/doc/synthread.html b/doc/synthread.html old mode 100644 new mode 100755 index 116a43d..d5cc57e --- a/doc/synthread.html +++ b/doc/synthread.html @@ -1,166 +1,189 @@ - - fakeread - - - - -

spectro/synthread

-

Summary

-Simulate the measurement of a devices response using a synthetic device -model. This is intended for testing of profile creation accuracy. A -device link -separation or color space conversion can be applied before the -print/measure simulation.
-

Usage

-synthread [-v] [separation.icm] inoutfile
- -v                -        Verbose mode
- -p                        -Use separation profile
- -l                        -Output Lab rather than XYZ
-
- -0 -pow                    -Apply power to input device chanel 0-9 (after sep.)
-
- -r -level                  -Add average random deviation of <level>% to input device values -(after sep.)
- -R -level                  -Add average random deviation of <level>% to output PCS values
- -u -      -                 -Make random deviations have uniform distributions rather than normal
- -b -L,a,b                  -Scale black point to target Lab value
- [separation.icm]          -Device link separation profile
- profile.[icm|mpp|ti3]     ICC, MPP -or .ti3 -profile/file to use
+ + synthread + + + + +

spectro/synthread

+

Summary

+ Simulate the measurement of a devices response using a synthetic + device + model. This is intended for testing of profile creation accuracy. A + device link + separation or color space conversion can be applied before the + print/measure simulation.
+

Usage

+ synthread [-v] [separation.icm] inoutfile
+  -v                  -inoutfile           -        Base name for -input[.ti1]/output[.ti3] file
-
-Examples
-
-synthread xxxx testvalues
-synthread -p xxx separation.icm testvalues
-

Comments
-

-The -v flag does nothing at -the moment.
-The -p flag enables a device -to device value conversion before -converting to expected PCS values.
-The -l flag causes the CIE -output values to be L*a*b* rather than the -default XYZ values.
-
-The -0, -1, -2 .. -9 -parameters are a way of simulating changes in the -behaviour of the simulated printing system. The parameter supplied to -the flag will be used to modify the device values (after any separation -is applied) by raising them to the power of the parameter. This applies -a transfer curve to the simulated device response.
-
-The -r parameter is a way of -simulating instability in the behaviour of -the simulated -printing system. The parameter supplied to the flag will be used to -scale a random offset added to the device values (after any separation -is applied). The offset will be a normally distributed error with an -average deviation of level%. A typically value supplied -might be 1.0 to simulate 1% randomness.
-
-The -R parameter is a way of -simulating instability in the behaviour of -the simulated -measuring system. The parameter supplied to the flag will be used to -scale a random offset added to the PCS values. The offset will be a -normally distributed error with an average deviation of level%. A -typically value supplied -might be 1.0 to simulate 1% randomness.
-
-The -u flag changes the -distribution of the random offsets applied using the -r or -R flags, from the default standard -deviation, to a uniform deviation distribution. The level is still -specified as an average deviation.
-
-The -b parameter is a way of -simulating devices that have a different black point to the profile -used. This only works if an ICC profile is used, and scales the black -point to the parameter value. This will be done in XYZ space by -default, and in L*a*b* space if the -l -flag is used.
-
-synthread is useful in creating artificial test value for testing colprof, as well as providing one path for -turning an MPP profile into an ICC profile. If a .ti3 file is -specified instead of an ICC or MPP profile, -then the closest matching measured points in the ..ti3 are substituted -for the test values in the .ti1 -file on -output. If the .ti1 -file is a monochrome test file with a White device value, then an RGB ICC profile, MPP or .ti3 may be used, and the White -values will be translated to equal RGB values. If the .ti1 -file is a monochrome test file with a Black device value, then a CMYK ICC profile, MPP or .ti3 may be used, and the Black -values will be translated to equal CMY = 0, K = grey values.
-
-If a separation device profile is provided (e.g. from CMY -> CMYK, -or perhaps CMYK->CMYK, to simulate a color correction step before -"printing"), then this will be applied to the .ti1 device values, -before converting the the device values into .ti3 PCS values.
-
-
-
- +       Verbose mode
+  -p                        +Use + separation profile
+  -l                        +Output + Lab rather than XYZ
+
+  -0 + pow                    +Apply + power to input device chanel 0-9 (after sep.)
+
+  -r + level                  +Add + average random deviation of <level>% to input device + values + (after sep.)
+  -R + level                  +Add + average random deviation of <level>% to output PCS values
+  -u +  +     +                  +Make + random deviations have uniform distributions rather than normal
+  -b + L,a,b                  +Scale + black point to target Lab value
+  [separation.icm]          +Device + link separation profile
+  profile.[icm|mpp|ti3]     ICC, MPP + or .ti3 + profile/file to use
+   + inoutfile           +  +       Base name for + input[.ti1]/output[.ti3] file
+
+ Examples
+
+ synthread xxxx testvalues
+ synthread -p xxx separation.icm testvalues
+

Comments
+

+ The -v flag does nothing at + the moment.
+ The -p flag enables a + device + to device value conversion before + converting to expected PCS values.
+ The -l flag causes the CIE + output values to be L*a*b* rather than the + default XYZ values.
+
+ The -0, -1, -2 .. -9 + parameters are a way of simulating changes in the + behaviour of the simulated printing system. The parameter supplied + to + the flag will be used to modify the device values (after any + separation + is applied) by raising them to the power of the parameter. This + applies + a transfer curve to the simulated device response.
+
+ The -r parameter is a way + of + simulating instability in the behaviour of + the simulated + printing system. The parameter supplied to the flag will be used to + scale a random offset added to the device values (after any + separation + is applied). The offset will be a normally distributed error with an + average deviation of level%. A typically value supplied + might be 1.0 to simulate 1% randomness.
+
+ The -R parameter is a way + of + simulating instability in the behaviour of + the simulated + measuring system. The parameter supplied to the flag will be used to + scale a random offset added to the PCS values. The offset will be a + normally distributed error with an average deviation of level%. A + typically value supplied + might be 1.0 to simulate 1% randomness.
+
+ The -u flag changes the + distribution of the random offsets applied using the -r or -R flags, from the default standard + deviation, to a uniform deviation distribution. The level is still + specified as an average deviation.
+
+ The -b parameter is a way + of + simulating devices that have a different black point to the profile + used. This only works if an ICC profile is used, and scales the + black + point to the parameter value. This will be done in XYZ space by + default, and in L*a*b* space if the -l + flag is used.
+
+ synthread is useful in creating artificial test value for testing colprof, as well as providing one path for + turning an MPP profile into an ICC profile. If a .ti3 file is + specified instead of an ICC or + MPP profile, + then the closest matching measured points in the ..ti3 are substituted + for the test values in the .ti1 + file on + output. If the .ti1 + file is a monochrome test file with a White device value, then an + RGB ICC profile, MPP or .ti3 may be used, and the White + values will be translated to equal RGB values. If the .ti1 + file is a monochrome test file with a Black device value, then a + CMYK ICC profile, MPP or .ti3 may be used, and the Black + values will be translated to equal CMY = 0, K = grey values.
+
+ If a separation device profile is provided (e.g. from CMY -> + CMYK, + or perhaps CMYK->CMYK, to simulate a color correction step before + "printing"), then this will be applied to the .ti1 device values, + before converting the the device values into .ti3 PCS values.
+
+
+
+ -- cgit v1.2.3