Document segmentation for high-quality printing

Hakan Ancin

doi:10.1117/12.271612

4 April 1997 Document segmentation for high-quality printing

Hakan Ancin

Proceedings Volume 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II; (1997) https://doi.org/10.1117/12.271612
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

A technique to segment dark texts on light background of mixed mode color documents is presented. This process does not perceptually change graphics and photo regions. Color documents are scanned and printed from various media which usually do not have clean background. This is especially the case for the printouts generated from thin magazine samples, these printouts usually include text and figures form the back of the page, which is called bleeding. Removal of bleeding artifacts improves the perceptual quality of the printed document and reduces the color ink usage. By detecting the light background of the document, these artifacts are removed from background regions. Also detection of dark text regions enables the halftoning algorithms to use true black ink for the black text pixels instead of composite black. The processed document contains sharp black text on white background, resulting improved perceptual quality and better ink utilization. The described method is memory efficient and requires a small number of scan lines of high resolution color documents during processing.

Citation Download Citation

Hakan Ancin "Document segmentation for high-quality printing", Proc. SPIE 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II, (4 April 1997); https://doi.org/10.1117/12.271612

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