[Kdenlive-devel] color 2 greyscale

[Alexandre Prokoudine]

Hi,

For the frei0r tinkerers:

http://cg.postech.ac.kr/research/robust_c2g/

"This paper presents a fast color-to-gray conversion algorithm which
robustly reproduces the visual appearance of a color image in
grayscale. The conversion preserves feature discriminability and
reasonable color ordering, while respecting the original lightness of
colors, by simple optimization of a nonlinear global mapping.
Experimental results show that our method produces convincing results
for a variety of color images. We further extend the method to
temporally coherent color-to-gray video conversion. "

Alexandre Prokoudine
http://libregraphicsworld.org