Q. on Colorization Plugin

[Boudewijn Rempt]

On Friday 05 January 2007 01:33, Schleimer, Ben wrote:
> Hi Bala,
>    I can't tell what the details of SIOX are (because
> they didn;t publish the algorithm on their site) but
> the re-colorization algorithm doesn't require any
> alpha. Basically, the image is converted into YUV
> colorspace. The Y channel is always kept but the U and
> V channels propogate depending on how similar the Y
> channel is of ajacent pixels. Most of the repainted
> examples in the paper are grayscale so I'm not sure
> you could emulate SIOX 100%. I guess if you paint a
> region a funky color and then generate a colormask in
> YUV space and then apply that mask to the RGB image,
> it might work... however IANAE

Gimp has a pretty complete implementation of the SIOX algorithm. I think that 
Michael Thaler's abortive attempt at a SIOX tool for Krita was based on the 
Gimp's code.

-- 
Boudewijn Rempt 
http://www.valdyas.org/fading/index.cgi
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