4 ms·

You can more accurately invert the quantisation step

• viraptor 3y ago
  You can't do it more accurately. You can make up expected details which aren't encoded in the file. But that's explicitly less accurate.
  • adgjlsfhk1 3y ago
    If the encoders know what model the decoders will be running, they can improve accuracy. You could pretty easily make a codec that doesn't encode high resolution detail if the decoder NN will interpolate it correctly.
    • viraptor 3y ago
      That's changing the encoder and sure, you could do that. But that's basically a new version of the format. It's not the JPEG we're using anymore + ML in decoder. It's JPEG-ML on both the encoder and decoder side. And with the speed that we adopt new image formats... That's going to take ages :(
    • samus 3y ago
      That makes sense if the goal is lossless compression. Since JPEG is lossy, it is sufficient to consider the Pareto front between quality, compressed size, and encoding/decoding performance.