Re: [Gimp-developer] burn blend mode photoshop equivalent

[Guiu Rocafort <neandertalspeople gmail com>]

Hmm I took a look at the current git code and I discovered that the
Gimp burn blend mode is already exported as "colour burn" photoshop
blend mode, so this is not a problem anymore. I'm sorry maybe I
precipitated myself a little bit answering this question.

Another question I have is if there are going to be more Gimp 2.8.X
releases before , and if it will be, how often do they happen. I
couldn't find any roadmap or similar in the wiki. I'm sorry I'm new
and I'm don't know much about the gimp release process.

Thanks
Guiu Rocafort

On Mon, Nov 26, 2012 at 10:05 PM, Guiu Rocafort
<neandertalspeople gmail com> wrote:
> Related to this thread in the user mailing list:
> https://mail.gnome.org/archives/gimp-user-list/2012-November/msg00240.html
>
> I've took a look and photoshop has 2 blend modes, "linear burn" and
> "color burn", and I'm guessing if any of these blend modes are
> equivalent to the "burn" blend mode that there is in Gimp.
>
> According to the GIMP Documentation about the burn mode (
> http://docs.gimp.org/en/gimp-concepts-layer-modes.html )
>
> "Burn mode inverts the pixel value of the lower layer, multiplies it
> by 256, divides that by one plus the pixel value of the upper layer,
> then inverts the result. It tends to make the image darker, somewhat
> similar to “Multiply” mode."
>
> An according to the Adobe Photoshop help (
> http://help.adobe.com/en_US/photoshop/cs/using/WSfd1234e1c4b69f30ea53e41001031ab64-77eba.html#WSfd1234e1c4b69f30ea53e41001031ab64-77e9a
> )
>
> "Color Burn Looks at the color information in each channel and darkens
> the base color to reflect the blend color by increasing the contrast
> between the two. Blending with white produces no change."
>
> "Linear Burn Looks at the color information in each channel and
> darkens the base color to reflect the blend color by decreasing the
> brightness. Blending with white produces no change."
>
> I've done a little testing and it seems to me that "burn" gimp mode
> corresponds with the "color burn" in photoshop, but I'm not completely
> sure.
>
> --
> Please avoid sending me Word or PowerPoint attachments.
> See http://www.gnu.org/philosophy/no-word-attachments.html



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