no_connection Posted September 20, 2017 Share Posted September 20, 2017 Or how I lost my fringe Ok puns aside, using old or sometime new glass can be both interesting and challenging. And sometime they give results that are very pleasing just due to their defects. But that can also have a back side with lenses showing strong abberations where you really don't want them. So I wanted to see if I could take some of the edge off the worst part. Quote Link to comment Share on other sites More sharing options...
freeman Posted September 21, 2017 Share Posted September 21, 2017 nice work! I encounter this a lot with my c mount glass, you definitely knocked it down a bit. Quote Link to comment Share on other sites More sharing options...
no_connection Posted September 22, 2017 Author Share Posted September 22, 2017 I could maybe post the fusion file if anyone wants it. The method is pretty simple, start by making a saturation map, detect edges on that so sharp change in saturation make up the bright parts and no change becomes black. Blur that slightly and convert to apha channel.. Use that to blend a desaturated version with the original. That way any sharp color transisions (like fringes) gets dialed down while the overall color remains unchanged. Slow change also remains unaffected, but depends on edge size. The same technique can also be used to bring a busy area down a notch sina_html and freeman 2 Quote Link to comment Share on other sites More sharing options...
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