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Convert black and white photo to colour
#9
For one or two, use the clone tool and clone in from around the blemish.


For lots of dust type dots you can use a (compiled) plugin called resynthesizer with its associated python plugin heal-selection see: https://www.gimp-forum.net/Thread-Resynt...or-Windows  EDIT: I see you have already been there. Does it not work with your images?

For spots on a photograph: You will have to imagine this one for the speckles. https://i.imgur.com/GKmKI1V.jpg While it is greyscale, easier to demo in RGB.

Bottom of the select menu is Toggle Quick Mask (shift-Q) That puts a mask over the image (default is red which does not show very well in greyscale) Using a small white FG brush, paint over the speckles. Looks like this: https://i.imgur.com/H61F8Mi.jpg

When complete, toggle the quick mask off. (shift-Q again) and there are selections around the speckles. https://i.imgur.com/84tEpx4.jpg

Start the heal-selection plugin Edit -> Enhance -> Heal Selection settings depend on what you are doing, speckles typically: small width, All around, Inwards. https://i.imgur.com/VUHe1Ng.jpg

OK it and when complete, the speckles are replaced by adjacent pixels. https://i.imgur.com/Xj5hpHw.jpg Takes a little practice. Sometimes best, missing the odd speckle out and returning later to fix. Telephone lines for example best using "top & bottom" ...
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RE: Convert black and white photo to colour - by rich2005 - 04-16-2019, 02:17 PM

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