![]() It's placed in the edge detection filter group: Now you can fade slow brightness changes by applying Gaussian High-pass Filtering. It destroys colors, so you can as well desaturate the image.ĭuplicate the image layer and apply Filter > Adjust > Desaturate. A fast way is to use filtering - slow changes can be faded with high pass filtering. That's, of course, a good method if one wants full control. There's an older answer where the job is done manually. The apparent large area brightness variations very likely should be faded. ![]() Its deformation filter Quadrangle at least is simple and straightens the pattern substantially:īut the color and brightness variations need still fixes. It's so sharp that one can try more tricks and to straighten the wood texture (not asked, but I guess it's useful). The question has been edited to contain a link to high resolution version of the wood image. I'd have started with a more photogenic piece of wood ) …and the same thing without the earlier curve It still felt a bit patchy, so I added a little a little dodge & burn on the extremes. & just for sake of completeness, here's the whole image, fully treated as above… If you really still need all the darks lighter & the lights darker, you can use a curve… More time & starting from the full-size image would give far better results. ![]() You could go further & use a healing brush to take out the scratches on the right…Īgain, you could be more subtle, I've just given it a single swipe. The main issue with the lighting is probably a lens issue, it's vignetting darker towards the outside edges, so I've just dialled that back out again. I've then used a vignette tool to lighten the outer margins of the image. In the image below I've just hit it at 100% over roughly the top half of the image. You can be as harsh or as subtle as you like with this method. You're left with a single colour, but multiple levels of light. ![]() This takes one sample point from the existing image, then adjusts all the other colour to match. To be perfectly honest, I'd have started from a better photo - I'd look for one that's already tilable too.Īnyway, armed with what we have I'd start by brushing over with a Colour Brush. ![]()
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