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