We propose a new scheme to re-compress JPEG images in a lossless way. Using a JPEG image as an input the algorithm partially decodes the signal to obtain quantized DCT coefficients and then re-compress them in a more effective way.
@article{arxiv.2310.10517,
title = {Distribution prediction for image compression: An experimental re-compressor for JPEG images},
author = {Maxim Koroteev and Yaroslav Borisov and Pavel Frolov},
journal= {arXiv preprint arXiv:2310.10517},
year = {2023}
}