灰度图像的二维Otsu自动阈值分割法
The Automatic Thresholding of Gray-Level Pictures via Two-Dimensional OTSU Method
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摘要: Otsu法是最常用的利用图象一维灰度直方图的阈值化方法之一,本文的目的是将它推广 到二维直方图,二维otsu法除了考虑象素点的灰度信息外还考虑了象素点与其邻域的空间 相关信息,通过与一维的0tsu法比较表明,在有噪声的图象中,本文提出的方法性能好得 多.Abstract: One of the most useful thresholding techniques ruing gray-level histogram of an image is the OTSU method. The objective of this paper is ,to extend it to the 2-dimensional histogram. The 2-dimensional OTSU method utilizes both the gray level information of each pixel and its spatial correlation information within the neighborhood. The comparison between this method and the 1-dimensional OTSU method show that this method performs much better When the images are corrupted by noise.
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Key words:
- Histogram /
- thresholding /
- OTSU method
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