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![1
DEEP LEARNING JP
[DL Papers]
http://deeplearning.jp/
A Generalization of Otsu’s Method and Minimum Error
Thresholding [E...](https://image.slidesharecdn.com/20200807deeplearningjpyokota-200807052117/75/DL-A-Generalization-of-Otsu-s-Method-and-Minimum-Error-Thresholding-ECCV2020-1-2048.jpg?cb=1668293695)
![1.1 背景
• 二値化は画像内のノイズを
除去し、性能向上に貢献す
る重要な前処理
• 二値化アルゴリズムの例:
• Otsu’s Binarization [Otsu
1979]
• Kittler’s Binarization [Kitt...](https://image.slidesharecdn.com/20200807deeplearningjpyokota-200807052117/75/DL-A-Generalization-of-Otsu-s-Method-and-Minimum-Error-Thresholding-ECCV2020-4-2048.jpg?cb=1668293695)
![2.1 Otsu’s Binarization [Otsu 1979]
クラス間分散𝜎𝑏
2
がもっとも大き
くなる値をしきい値とする
アルゴリズム:
11](https://image.slidesharecdn.com/20200807deeplearningjpyokota-200807052117/75/DL-A-Generalization-of-Otsu-s-Method-and-Minimum-Error-Thresholding-ECCV2020-11-2048.jpg?cb=1668293695)
![2.2 Minimum Error Thresholding [Kittler et.
al. 1986]
12
http://www.thothchildren.com/chapter/5bc4b10451d930518902af3b
𝑃𝑘 ...](https://image.slidesharecdn.com/20200807deeplearningjpyokota-200807052117/75/DL-A-Generalization-of-Otsu-s-Method-and-Minimum-Error-Thresholding-ECCV2020-12-2048.jpg?cb=1668293695)
