I have a black turtle tank (black wood) and I want to simulate what it would look like if we painted the wood a different color.
Original photo below
My attempt at doing it below
Any tips on how to do this?
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To make the colorize process a bit more natural we have to make sure that at least some of the furniture structure is preserved from the source image. Therefore it may be needed to obtain an image where the shadows are lit brighter than on the example here. This can e.g. be done by exposure bracketing, and combining layers with different exposures. We may alternatively try to use a flashlight to make sure the turtle tank is better lit for more details.
At present the details preserved in the image given are far from optimal, and also they suffer a lot from JPEG artifacts.
Let me below outline steps to colorize a single object.
Manually cut out the opject with a select tool.
Paste the object to new image in orded to adjust contrast, brightness, and color.
Be gentle with that. Less is often more to give natural results (below I already overdid it)
Consider desaturation of the object before colorizing.
Cut out, contrast optimized, and desaturized turtle tank
Use your colorizing tool for desired colors.
Finally copy and paste the now contrast-optimized, and colorized object back to the source.