phidrho Posted March 21, 2015 Share Posted March 21, 2015 more info in video: problem is present in paint.net (except for unfocus blur) 1 Quote Link to comment Share on other sites More sharing options...
silverhammermba Posted March 22, 2015 Share Posted March 22, 2015 (edited) This bug might actually apply to many features of paint.net in addition to Gaussian blur. It seems to me that almost any operation which modifies existing pixels will be incorrect if the gamma correction is not done beforehand. It's just especially noticeable for blurs because we have an intuitive sense for how that should look. Mathematically, a function f which operates on the color components of pixels must take into account sRGB gamma correction unless f(xy) = f(x)y. I imagine such a property is pretty uncommon. Edited March 22, 2015 by silverhammermba Quote Link to comment Share on other sites More sharing options...
midora Posted March 22, 2015 Share Posted March 22, 2015 I would not qualify this as a bug as long as Paint.NET does not use a CMS. You may call it a feature which you are missing. Quote Link to comment Share on other sites More sharing options...
silverhammermba Posted March 22, 2015 Share Posted March 22, 2015 I don't think this really has to do with a CMS. Even without a CMS, paint.net operates in some color space. If it doesn't operate on that space correctly (by taking into account the space's gamma) isn't that a bug? Quote Link to comment Share on other sites More sharing options...
midora Posted March 22, 2015 Share Posted March 22, 2015 From my point of view you should assume most operations are working in sRGB without taking a gamma of 2.2 into account. There are plugins doing this but not a lot. At the end without using a cms you still will not get perfect results. Quote Link to comment Share on other sites More sharing options...
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