Segmentation of Compressed Documents

3/4/98


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Table of Contents

Segmentation of Compressed Documents

Objective

JPEG-Domain Processing

Feature Extraction

Encoding Cost Map (ECM)

ECM Stability

ECM Histogram Per Region

Segmentation Example

Find Halftones

Find Background

Find Continuous tone

Text and Graphics

Replacing/Extracting Regions

Conclusions

Author: Ricardo De Queiroz

Email: queiroz@wrc.xerox.com

Home Page: www.wrc.xerox.com/~queiroz