slightly updated the wavelet code again… i had a little inspiration yesterday evening (well… it should’ve been the obvious thing to do): i now reorder the coefficients that were set to 0 (for non power-of-2 dimensions) to the end of the block. this improves compression on such images by about 0.7-1.2%. yey. and makes old images look odd. ^_^
updated the code page w/ the wavelet kompressor, made some (very minor) changes to the code and added documentation (i think that’s a first for me ;)!
finished the GUI, commented the wavelet compression code (together with everything else) and released it all with source under the GPL. have fun… wavelet.zip!! and please give feedback 😉
working on a GUI for my wavelet compression for people to play around w/… should be done on monday! (but still haven’t put sensible comments into the code :-/)
iteration 3 of my wavelet image compression. and no, it’s not better than anything that’s already out, but it’s simple.
my wavelet compression consistently beats jpg by about 10%…
starting work on my “images & vision” assignment. we had the choice between partitioning an image (which sounded too easy) and compressing it by a factor of 64. being the geek that i am, i went for the compression… did some research into wavelets and started coding on that. looks quite promising, although i don’t have any numbers yet (Rice run-length encoding on the bitplanes still has to be written). very interesting.