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Continue to ChatQuery : You can use a levels adjustment layer. I did this in Photoshop but the same technique can be used in other programs. On the left I applied a 50% opacity white layer to show the effect. https://vmapp.org/query/38343/You-Can-Use-A-Levels-Adjustment-Layer-I-Did-This-In-Photoshop-But-The-Same-Technique-Can-Be-Used-In-Other-Programs-On-The-Left-I-Applied-A-50-Opacity-White-Layer-To-Show-The-Effect/