Text-Color-Independent Binarization for Degraded Document Image Based on MAP-MRF Approach
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概要
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We propose a novel background and foreground estimation algorithm in MAP-MRF approach for binarization of degraded document image. In the proposed algorithm, an assumption that background whiteness and foreground blackness is not employed differently from the conventional algorithm, and we employ characters irregularities based on local statistics. This makes the method possible to apply to the image with various colored characters, ex. outlined characters by colored background. The effectiveness and the validity are shown by applying the proposed method to various degraded document images.
- 2011-11-01
著者
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Kawano Hideaki
Faculty Of Engineering Kyushu Institute Of Technology
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Maeda Hiroshi
Faculty Of Pharmaceutical Sciences Okayama University:kumamoto University Medical School
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Orii Hideaki
Graduate School Of Engineering Kyushu Institute Of Technology
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Ikoma Norikazu
Faculty Of Engineering Kyushu Institute Of Technology
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Maeda Hiroshi
Faculty Of Engineering Kyushu Institute Of Technology
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