Preprocessing for improved performance in image and video coding

V. Ralph Algazi; Gary E. Ford; Adel I. El-Fallah; Robert R. Estes Jr.

doi:10.1117/12.217401

22 August 1995 Preprocessing for improved performance in image and video coding

V. Ralph Algazi, Gary E. Ford, Adel I. El-Fallah, Robert R. Estes Jr.

Proceedings Volume 2564, Applications of Digital Image Processing XVIII; (1995) https://doi.org/10.1117/12.217401
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In previous work, we reported on the benefits of noise reduction prior to coding of very high quality images. Perceptual transparency can be achieved with a significant improvement in compression as compared to error free codes. In this paper, we examine the benefits of preprocessing when the quality requirements are not very high, and perceptible distortion results. The use of data dependent anisotropic diffusion that maintains image structure, edges, and transitions in luminance or color is beneficial in controlling the spatial distribution of errors introduced by coding. Thus, the merit of preprocessing is for the control of coding errors. In this preliminary study, we only consider preprocessing prior to the use of the standard JPEG and MPEG coding techniques.

Citation Download Citation

V. Ralph Algazi, Gary E. Ford, Adel I. El-Fallah, and Robert R. Estes Jr. "Preprocessing for improved performance in image and video coding", Proc. SPIE 2564, Applications of Digital Image Processing XVIII, (22 August 1995); https://doi.org/10.1117/12.217401

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