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My ICIP 2006 Schedule
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Paper Detail
| Paper: | WP-P3.4 |
| Session: | Image and Video Coding - II |
| Time: | Wednesday, October 11, 14:20 - 17:00 |
| Presentation: |
Poster |
| Topic: |
Image & Video Coding: Lossy image coding |
| Title: |
PRE-PROCESSING FOR MRC LAYERS OF SCANNED IMAGES |
| Authors: |
Ricardo de Queiroz; Universidade de Brasilia | | |
| Abstract: |
The mixed raster content (MRC) imaging model represents compound images as a superposition of layers. The model is very efficient for representing sharp text and graphics onto a background, but, since the mask layer is binary, it is difficult to deal with scanned data and soft edges. The edge transitions don´t fully belong to the foreground neither to the background, and cause some ``halo'' to the object edges using the MRC model. We present a method to detect segmented soft edges and a method to correct and sharpen the image within the MRC model. An improved data filling algorithm for the redundat regions is also presented. The original ``softness'' and relative position of the edges are estimated and we present a method to attempt to recreate the edge softness effect at the decoder. |
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