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I have this pic of a race car that I want to change the color of the car, to get an idea what color to paint it.
Can anyone direct me to a tutorial that will help me accomplish this ?
The problem is the car is white with replacement body parts that are black.

All help is appreciated !

Here is the pic:

I do not know of a tutorial and not really beginner stuff but try;

Use the path tool https://docs.gimp.org/2.10/en/gimp-tool-path.html and
1. Trace around the car body
2. Trace around the black panel

3. Use the body path (path to selection) for layer masks https://docs.gimp.org/2.10/en/gimp-layer-mask-add.html

4. One for the colour layer (in multiply mode) and 5. one for the original image (in normal mode).

6. The other path - black panel - supplies a selection. 7. Use the curves tool to get some sort of match (hopefully) with the main body.

I got this (detached the docks for visibility).



Once that is satisfactory, paint in the colour layer mask to uncover the wheels and the window area.

For you to play with: https://www.dropbox.com/s/r2caeb0xscfyyr...cf.gz?dl=0 1.5MB Gimp .xcf.gz image

If you have a larger image use that. One of those things where larger is easier.

rich2005,
Thank You for your reply.
I'll give this a try and if successful will post up the result

Well as crude as it is, here is my end result.