[Bf-committers] Color to greyscale conversion - confusion

Jason Wilkins jason.a.wilkins at gmail.com
Sun Jul 8 21:44:47 CEST 2012


On Sun, Jul 8, 2012 at 11:40 AM, Troy Sobotka <troy.sobotka at gmail.com> wrote:
> And finally, there has been some rather exhaustive perceptual research
> on the various weights here:
> http://dcgi.felk.cvut.cz/home/cadikm/color_to_gray_evaluation/

The "decolorize" algorithm on this page is not just a simple set of
weights it is?  That algorithm appears to choose luminance values
based on perceptual differences in color so that more information is
preserved when converting to luminance only (i.e., it tries to make
different colors appear with different brightness).  I don't think you
could do that with a linear mapping.


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