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abcboy

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Posts posted by abcboy

  1. Images that already have 256 or fewer colors, whether as a result being converted to grayscale or being from a format with a palette, are being dithered unnecessarily on save. I believe this is a regression in 4.2.16. This is particularly concerning because it makes Auto-detect lossy for these PNGs.

     

    The following PNG-8 and GIF were generated externally:

     test.png.5169e0b3e49f6be0a173e875f2d2562e.png test.gif.083c1350b3de5c378c3f1a61f7c69173.gif

    The files after being opened and saved with default settings in paint.net:

     test2.png.87bca7bc3331f9eb90e6d7dda2da56d8.png test2.gif.db37af07cf2e33690ef1c35e473636d8.gif

    There is now noticeable dithering on the previously solid square.

    dithering.thumb.png.ff3d16035f2b14bdf4dea3aa37abd64a.png

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