jrmsmith

Have you checked tis paper: [PSNR-based optimization of JPEG baseline compression on color images](http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4106737)? On the plus side the paper is 10 years old and I haven't found the patent...

Apparently there is even a better algorithm that doubles average size savings: [Joint Optimization of Run-Length Coding, Huffman Coding, and Quantization Table With Complete Baseline JPEG Decoder Compatibility](http://ieeexplore.ieee.org/iel5/83/4711346/04682736.pdf?arnumber=4682736). Unfortunately, it...

In my opinion, this is a waste of time. A time that would be better spent implementing #182 and #223 -- which provide the best quantization table and the best...

According to the authors [see patent], this algorithm provides the best thresholding strategy: > [The] threshold selection for the DCT coefficients of an image or video frame is based on...