Open Ser-Gen opened 5 years ago
Current subsampling implementation, as in libjpeg, makes contrast colors look blurry. There are an attempts to make it better.
source 186289
petitojpeg 90 4:2:0 51118
sjpeg 90 4:2:0 sharp 51071
About implementations. Some info from mozjpeg issues. https://github.com/mozilla/mozjpeg/issues/8 https://github.com/mozilla/mozjpeg/issues/193 https://github.com/kornelski/jpeg-compressor#subsampling https://github.com/kornelski/jpeg-compressor/blob/9eeb009fdb8673224de5be978574cb139e4b8bf6/jpge.cpp#L611
sjpeg has sharp yuv, like in webp, gives closer result. https://github.com/webmproject/sjpeg
Current subsampling implementation, as in libjpeg, makes contrast colors look blurry. There are an attempts to make it better.
source 186289
petitojpeg 90 4:2:0 51118
sjpeg 90 4:2:0 sharp 51071
About implementations. Some info from mozjpeg issues. https://github.com/mozilla/mozjpeg/issues/8 https://github.com/mozilla/mozjpeg/issues/193 https://github.com/kornelski/jpeg-compressor#subsampling https://github.com/kornelski/jpeg-compressor/blob/9eeb009fdb8673224de5be978574cb139e4b8bf6/jpge.cpp#L611
sjpeg has sharp yuv, like in webp, gives closer result. https://github.com/webmproject/sjpeg