A VLSI Progressive Coding for Wavelet-based Image Compression

Images compression by using cubic spline-functions methods

“…Despite the fact that several illustrations are usually used, and the fact that they are often much larger (for example, with color printing), keeping them unpackaged becomes expensive. In recent years, serious attention has been paid to solving this problem [1][2][3][4][5]. A large number of different algorithms for archiving graphics have been developed: both modified universal and completely new algorithms oriented only on images were used.…”

“…Blocks of size M × N elements are coded according to the probability of their appearance. For the most probabilistic blocks, short codewords are used, and for less probabilistic blocks, long codewords (the Huffman algorithm) are used, which results in data compression [4,5]. Compression factors using these methods can reach 4-5.…”

“…A review of literature sources shows that the main ways to solve the problem of image compression is the use of wavelet-coding [1][2][3] and using the jpeg format to reduce the amount of image files [4,5]. A technique for reducing the size of image files based on scaling methods has also been proposed [6].…”

“…Considering the method [5], the author notes that the resulting raster is less redundant. Transformation can be used for images with large areas of equal coloration.…”