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Im in the process of creating some custom colour
charts for work, Theis is be based on LCH. I dont want to print all the
colours in the LCH colourspace as this is too many and most are out of
gamut (3600 colours at 360 step 10 and L/C step 0.1) I want to limit the range to colours inside the gamut of
the device. I have working code based on the below steps but I just
want to check if this is the correct way
Firstly im converting from LCH to D50 LAB and
calling this LAB1
Then im Converting from LAB1 to Device Colours via
Absolute Colourmetric transform, Im then taking
this Device Colour and converting it back from the Device colour
via Absolute Colourmetric transform and calling this LAB2.
Im then discarding all colours where the Delta E
between LAB1 and LAB2 > 20 (The ensures im getting colours just outside the
gamut)
Is this the best way?
Oh BTW is the range for Chroma and Hue H
0.0 to 1.0?
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