Re:Faster Images using HTTP2 and Progressive JPEGs
by vladdanilov on Wednesday December 28, 2016 @12:56PM
(#13272221)
The AI approach is interesting but there are just too many problems with it.
MozJPEG is actually using something similar called trellis quantization or soft-thresholding. The idea is to further quantize DCT coefficients in noisy areas. There are some limitations [1] though. But it's not an issue with locally sensitive metrics and can be improved with edge detection.
Another challenge here is to estimate the current image quality and the target error.
MozJPEG is actually using something similar called trellis quantization or soft-thresholding. The idea is to further quantize DCT coefficients in noisy areas. There are some limitations [1] though. But it's not an issue with locally sensitive metrics and can be improved with edge detection.
Another challenge here is to estimate the current image quality and the target error.
[1] https://github.com/mozilla/mozjpeg/issues/129