: In Gimp how to take the brightest value of each color channel for every pixel? In Gimp I want to generate a gray scale image of a RGB image defined by this per-pixel formula: value_xy =

In Gimp I want to generate a gray scale image of a RGB image defined by this per-pixel formula: value_xy = max(R_xy, G_xy, B_xy).

I didn't find a builtin feature so I wonder if there's some generic filter out there where I can operate on a per-pixel basis by just defining some formula.

Is there something like this already? Would I have to write my own filter for Gimp?

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@Dunderdale640

No need for specific filter...

Color>Components>Decompose and use RGB Model, you get a grayscale image where each layer is one of the RGB channels of the original image
Set the top two layers to Lighten only mode.

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: In Gimp how to take the brightest value of each color channel for every pixel? In Gimp I want to generate a gray scale image of a RGB image defined by this per-pixel formula: value_xy =

More posts by @Jessie844

: What does Photoshop's "High Pass" filter actually do under the hood? I'm trying to wrap my head around this filter. Like some other filters, I find that I don't understand how it works, both

: Illustrator- cannot warp embedded image Recently I have been trying to warp an image using Adobe Illustrator CC2017, but I'm experiencing some problems. Using the distort command (cmd alt c) I

: Create Path from Outline Is there basically an inverse of the "Outline Path" operation? I have a particular shape which is filled with basically even paths, but they've been outlines. I'm using

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