@WorBry - if you have serially changing each generation , it suggests some interpolation going on, probably bicubic. If you have blocky sharp color borders and preserved same up/down over each generation, it can only be nearest neighbor . You can verify this by controlling the algorithm in say vapoursynth or avisynth or ffmpeg , export either v210 or v410 and check . You can check the RGB conversion algorithm this way too
"desireable" is debatable and depends on the situation - what looks good on a test pattern might not look so good on real material .
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