Title :
Region-based and scalable image compression by wavelet localization
Author_Institution :
Dept. of Comput. Sci., Nat. Taiwan Ocean Univ., Taiwan
Abstract :
In this paper a wavelet and region-based image compression scheme was proposed. The wavelet coefficients at each level related to a square or circular interested regions were accurately located. Methods of combining localization of wavelets with weighting factors are presented. This approach overcomes the difficulty arising from JPEG and exhibits the ability to allow users to construct the region of interest with PSNR scalability in a compressed image.
Keywords :
data compression; image coding; wavelet transforms; region-based image compression scheme; scalable image compression; wavelet combining localization; Discrete cosine transforms; Frequency; Image coding; Image reconstruction; PSNR; Signal processing; Transform coding; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
Signal Processing and Its Applications, 2003. Proceedings. Seventh International Symposium on
Print_ISBN :
0-7803-7946-2
DOI :
10.1109/ISSPA.2003.1224911
