Improvements to JPEG-LS via diagonal edge-based prediction

Eran Anusha Edirisinghe; Satish Bedi; Christos Grecos

doi:10.1117/12.453103

4 January 2002 Improvements to JPEG-LS via diagonal edge-based prediction

Eran Anusha Edirisinghe, Satish Bedi, Christos Grecos

Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453103
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

JPEG-LS is the latest pixel based lossless to near lossless still image coding standard introduced by the Joint Photographic Experts Group (JPEG). In this standard simple localized edge detection techniques are used in order to determine the predictive value of each pixel. These edge detection techniques only detect horizontal and vertical edges and the corresponding predictors have only been optimized for the accurate prediction of pixels in the locality of diagonal edges. In this paper we propose a low complexity, low cost technique that accurately detects diagonal edges and predicts the value of pixels to be encoded based on the gradients available within the standard predictive template of JPEG-LS. We provide experimental results to show that the proposed technique outperforms JPEG-LS in terms of predicted mean squared error, by a margin of up to 8.51%.

Citation Download Citation

Eran Anusha Edirisinghe, Satish Bedi, and Christos Grecos "Improvements to JPEG-LS via diagonal edge-based prediction", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453103

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