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Proceedings Paper

Deblocking DCT compressed images
Author(s): Albert J. Ahumada; Rensheng Horng
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Paper Abstract

Image compression based on quantizing the image in the discrete cosine transform (DCT) domain can generate blocky artifacts in the output image. It is possible to reduce these artifacts and rms error by correcting DCT domain measures of block edginess and image roughness, while restricting the DCT coefficient values to values that would have been quantized to those of the compressed image.

Paper Details

Date Published: 1 May 1994
PDF: 8 pages
Proc. SPIE 2179, Human Vision, Visual Processing, and Digital Display V, (1 May 1994); doi: 10.1117/12.172662
Show Author Affiliations
Albert J. Ahumada, NASA Ames Research Ctr. (United States)
Rensheng Horng, NASA Ames Research Ctr. (United States)


Published in SPIE Proceedings Vol. 2179:
Human Vision, Visual Processing, and Digital Display V
Bernice E. Rogowitz; Jan P. Allebach, Editor(s)

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