Precision vs. error in JPEG compression

Jose C. Bins; Bruce A. Draper; Willem A. P. Bohm; Walid Najjar

doi:10.1117/12.365892

7 October 1999 Precision vs. error in JPEG compression

Jose C. Bins, Bruce A. Draper, Willem A. P. Bohm, Walid Najjar

Proceedings Volume 3817, Parallel and Distributed Methods for Image Processing III; (1999) https://doi.org/10.1117/12.365892
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

By mapping computations directly onto hardware, reconfigurable machines promise a tremendous speed-up over traditional computers. However, executing floating-point operations directly in hardware is a waste of resources. Variable precision fixed-point arithmetic operations can save gates and reduce clock cycle times. This paper investigates the relation between precision and error for image compression/decompression. More precisely, this paper investigates the relationship between error and bit- precision for the Discrete Cosine Transform and JPEG.

Citation Download Citation

Jose C. Bins, Bruce A. Draper, Willem A. P. Bohm, and Walid Najjar "Precision vs. error in JPEG compression", Proc. SPIE 3817, Parallel and Distributed Methods for Image Processing III, (7 October 1999); https://doi.org/10.1117/12.365892

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