Paper Details: Downloads: 1924
Serial Number: P1151517373
Title: HAMMING GRAPH BASED IMAGE COMPRESSION WITH VARIABLE THRESHOLD
Authors: Levstein F. and Lezama J. and Maldonado C. and Penazzi, D. and Schilman M.
Abstract: In this paper a lossy image compression method using the adjacency matrix of a graph is proposed. We instantiate the method us- ing the Hamming graph, which gives rise to an image com- pression algorithm that uses a Hadamard Matrix together with a threshold approach. In threshold methods, selec- tion of the correct (static) threshold value is dicult. In our approach we use a new threshold determination that changes from block to block obtaining an algorithm that uses only integer and mod- ular operations and obtains good results in some stan- dard images. The new method has better stability under re- compression iteration than jpg.
Keywords: Image compression; Hadamard transform; Block truncation; Variable thresold;
Journal/Conference: International Journal of Graphics, Vision and Image Processing
Volume: 15
Issue: 1
Submission Date: 4/22/2015 12:00:00 AM
Review Date: 5/17/2015 12:28:05 AM
Publishing Date: 6/12/2015 2:08:20 AM
Article Downloads: 1924
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