Hi Martin,

very cool. Is this a patch against the git version?



On 03.03.2011 06:26, Martin Nordholts wrote:
> On 03/03/2011 02:00 AM, "Jörn P. Meier" wrote:
>> Hi,
>> I would like to implement the following layer mode in the GIMP:
>> 1) Transform destination and source pixels to HSL space.
>> 2) Note original destination pixel saturation.
>> 3) Set luminance component of destination pixel to luminance component
>>       of source pixel.
>> 4) Transform destination to HSV color space.
>> 5) Set saturation of destination pixel to original saturation of
>>       destination pixel.
>> I'm assuming destination is also the result of the operation. Not sure
>> how GIMP handles this, though.
>> The purpose of the mode is to colorize a greyscale image while keeping
>> both the saturation and hue data of the color layer and the luminance
>> data of the greyscale image. Existing modes (as far as I see)
>> unfortunately either mess up the color information or the luminance
>> information.
>> So, the question is, what changes would I need to make to add this
>> layer mode?
>> I would be very grateful for any hints. :)
> There is already a patch for that (using the CIELCH space instead), see
> the most recent patch in
> https://bugzilla.gnome.org/show_bug.cgi?id=325564
>    / Martin

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