Thorsten's Blog

Note to myself:

1. File => Open
2. Image => Mode => Grayscale
3. Edit => Copy
4. Edit => Undo
5. Layer => New => Transparency => ok
6. Edit => Paste
7. Layer => Anchor Layer
8. Layer => Mask => Add Layer Mask => White (full opacitiy) => Add
9. Now use the Paintbrush-Tool to (re)color the parts of the image you like

Here’s a sample image:

Colorkey image made with GIMP

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