![]() ![]() I don't believe you can do much better by thislike simple methods except by redrawing. Now it works because the unwanted moire pattern remnants really are lighter than the wanted texts and shapes. The cleaned layer got finally the level adjustment which was suggested in earlier answers. Then the nearly vanished parts were erased from the cleaned version. The remedy was to copy the cleaned image over the original as a new layer. Unfortunately all faint buttont texts (Save, help, Exit) have nearly vanished. The noise sample was taken from the dense pattern in the middle of the photo. The following example is the output from Neat Image (the 5 years old free version). ![]() If you want to fix your already taken photos, you can use some good noise eliminating program. Also have a good tripod to be able to keep the ISO as low as possible for low real noise and no camera shaking blur. Use a small aperture, for example 1:11 to keep the barrel distortion low. Take several photos at the same distance but having a little different zoom settings. ![]() There's a scaling differences between the areas of your image. You should note that the pattern does not exist everywhere. Digital signal prosessing mathematician would say that you have got a visible difference of the sampling frequencies both in the vertical direction and in the horizontal direction. One gets the same problem if he scans a printed photo. There's a heavy Moire pattern due the fact that you rasterized something already rasterized. ![]()
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