Hi,
For my transformations I start with an icm file build
with following values :
PrimariesRedx 0.6400
PrimariesRedy 0.3300
PrimariesRedYY 1.0
PrimariesGreenx 0.3000
PrimariesGreeny 0.6000
PrimariesGreenYY 1.0
PrimariesBluex 0.1500
PrimariesBluey 0.0600
PrimariesBlueYY 1.0
whitePoint 6504
Gamma red 1
Gamma green 1
Gamma blue 1
I use as a 2nd ICM file in which I try to insert
transformation curves built manually.
For example I need that :
? All red output values become 0.75 times their input
value.
? Green output values equals input values.
? Blue output values are given by a known curve
matching a gamma of 2.
I was thinking that to create this 2nd icc file I had
to use the same primary colors and the same white
point. And that modifying arrays built with
cmsBuildGamma function will be sufficient.
But apparently this doesn?t work. Can someone help me
?
Thank
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