Title :
Image compression with adaptive local cosines: a comparative study
Author :
Meyer, François G.
Author_Institution :
Dept. of Electr. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
The goal of this work is twofold. First, we demonstrate that an advantage can be gained by using local cosine bases to encode images that contain periodic textures. We designed a coder that outperforms a wavelet coder on a large number of images. This new coder constitutes the first contribution of the paper. Second, we used our coder to compare the performance of several optimized bells in terms of rate-distortion for a large collection of images
Keywords :
data compression; image coding; image texture; transforms; adaptive local cosines; bell function; image coding; image compression; local cosine bases; optimized bells; periodic textures; rate-distortion; wavelet coder; Attenuation; Focusing; Fourier transforms; Frequency; Image coding; Image reconstruction; Lapping; Rate-distortion;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.958529
