A New Predictive Image Compression Scheme Using Histogram….pdfVIP

2010 Second International Conference on Computer Engineering and Applications A New Predictive Image Compression Scheme using Histogram Analysis and Pattern Matching Farhad Keissarian University of Wollongong in Dubai farhadkeissarian@uowdubai.ac.ae Abstract—In this paper, we introduce a new predictive image coding scheme that combines the advantages of AMBTC, compression scheme that compresses an image by a set of predictive coding scheme, VQ, and DCT coding algorithms parameters computed for individual blocks of different types. is presented in [7]. In this method, the predictive coding These parameters include the average and difference of the scheme combined with VQ is used in encoding the bit-map representative intensities of an image block, together with the blocks generated by AMBTC. In this study, Hamming index of a pattern associated with the block visual activity. The distance is used to measure the difference rather than block representative gray values are computed through a Euclidean distance. Hamming distances of the current block histogram analysis of the block residuals and a pattern with the neighboring blocks are compared with a pre-defined matching technique is employed to find the best match for the threshold, and the current block is replaced with the block bit-pattern from a pre-defined pattern b