In this paper we present an algorithm for the lossless compression of true color images. Our aim was to develop a practical algorithm with a fast decompression phase. The algorithm executes a block adaptive predictive filtering phase, followed by a color filtering phase that exploits color correlation, and finally compresses the prediction errors through context assignment and Huffman coding. Comparing the proposed algorithm with competing standards as Jpeg2000 and Jpeg-LS, we show how our method yields better compression ratios without having a slower decompression speed.
BCIF: Another Algorithm for Lossless True Color Image Compression / E. Barcucci; S. Brocchi. - STAMPA. - 6636:(2011), pp. 372-384. (Intervento presentato al convegno Combinatorial Image Analysis - 14th International Workshop, IWCIA 2011 tenutosi a Madrid, Spagna nel 23-25 maggio 2011).
BCIF: Another Algorithm for Lossless True Color Image Compression
BARCUCCI, ELENA;BROCCHI, STEFANO
2011
Abstract
In this paper we present an algorithm for the lossless compression of true color images. Our aim was to develop a practical algorithm with a fast decompression phase. The algorithm executes a block adaptive predictive filtering phase, followed by a color filtering phase that exploits color correlation, and finally compresses the prediction errors through context assignment and Huffman coding. Comparing the proposed algorithm with competing standards as Jpeg2000 and Jpeg-LS, we show how our method yields better compression ratios without having a slower decompression speed.
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