Re: [Gimp-developer] Some blend modes break in unbounded mode sRGB

[Elle Stone <ellestone ninedegreesbelow com>]

On 04/13/2014 11:49 AM, Elle Stone wrote:

> Forcing the conversion to
> sRGB rearranges the channel data radically, depending on the source
> color space and also the image color gamut. Consequently fundamental
> editing operations like Channel Mixer and channel blending no longer
> work as expected.

I would ask the GIMP developers to please take a look at this link:

http://ninedegreesbelow.com/gimpgit/unbounded-srgb-channel-blend-convert-black-white.html

The test file can be downloaded. The profiles are also available.

The black and white conversion that I envisioned and accomplished with 
trivial simplicity in the custom RGB working space *can't be done* in 
the sRGB color space, unbounded ICC profile conversion notwithstanding.

Thanks in advance to anyone who reads the post and tries the conversion 
to black and white in the sRGB color space.

Elle