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In this paper, a comparative study of JPEG and SPIHT compression algorithms is presented. A set of objective picture quality measures like peak signal to noise ratio (PSNR), maximum difference (MD), least mean square error (LMSE), structural similarity index (SSIM) and picture quality scale(PQS) are used to measure the picture quality and comparison is done based upon the results of these quality...
In wavelet based image coding, a variety of orthogonal and biorthogonal filters have been developed by researchers for signal analysis and compression. The selection of wavelet filters plays a crucial part in achieving an effective coding performance, because there is no filter that performs the best for all images. The aim of this paper is to examine a set of wavelet filters from different families...
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