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Proceedings Paper

Removal of artifacts from JPEG compressed document images
Author(s): Basak Oztan; Amal Malik; Zhigang Fan; Reiner Eschbach
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Paper Abstract

We present a segmentation-based post-processing method to remove compression artifacts from JPEG compressed document images. JPEG compressed images typically exhibit ringing and blocking artifacts, which can be objectionable to the viewer above certain compression levels. The ringing is more dominant around textual regions while the blocking is more visible in natural images. Despite extensive research, reducing these artifacts in an effective manner still remains challenging. Document images are often segmented for various reasons. As a result, the segmentation information in many instances is available without requiring additional computation. We have developed a low computational cost method to reduce ringing and blocking artifacts for segmented document images. The method assumes the textual parts and pictorial regions in the document have been separated from each other by an automatic segmentation technique. It performs simple image processing techniques to clean out ringing and blocking artifacts from these regions.

Paper Details

Date Published: 29 January 2007
PDF: 9 pages
Proc. SPIE 6493, Color Imaging XII: Processing, Hardcopy, and Applications, 649306 (29 January 2007); doi: 10.1117/12.705414
Show Author Affiliations
Basak Oztan, Univ. of Rochester (United States)
Amal Malik, Xerox Corp. (United States)
Zhigang Fan, Xerox Corp. (United States)
Reiner Eschbach, Xerox Corp. (United States)

Published in SPIE Proceedings Vol. 6493:
Color Imaging XII: Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu, Editor(s)

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