Always thanks for the lcms engine. ^^*
I want to make the rough color balance program like qp-card 501
(http://www.qpcard.com) But I can't find solution in lcms engine in myself.
How to solve ?
Following is the my approach procedure
>> Step 1.
I build the color array in sRGB color space (D65)
(sRGB Cube RGB 3x3x3 and gray curve 5 patch)
R 0, 128, 255 = 3 Step
G 0, 128, 255 = 3 Step
B 0, 128, 255 = 3 Step
3x3x3= 27 RGB Patch
RGB 0, 0, 0
RGB 64,64,64
RGB 128,128,128
RGB 192,192,192
RGB 255,255,255
5 Gray Level Patch
Total 32(27RGB + 5Gray) Color Patch (White Point D65)
>> Step 2.
all color patch are printed by fuji frontier printer
(silver photo graphic printer)
>> Step 3.
all color patch are measured L*a*b* value via Spectrolino (gretag-macbeth)
>> Step 4.
every L*a*b value is converted to sRGB by lcms engine for real RGB value.
>> Step 5.
my camera is taken the scene with pre-made color patch[~step4] with various illuminance.(ex. sun, dark, halogen...)
>> Step 6.
Of course, Step 4 and Step 5 's rgb values are different.
How to make the rough estimation profile or enforce color mapping ?
(ex. digital camera color[step 5] -> real color[step4] )
Sorry for the long my question and bad english...
simon
south korea
[EMAIL PROTECTED]
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