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6Â¥2012-06-07 08:44:44
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2Â¥2012-06-06 23:41:12
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zhang8826857: ½ð±Ò+5, ¡ïÓаïÖú 2012-06-11 10:52:02
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zhang8826857: ½ð±Ò+5, ¡ïÓаïÖú 2012-06-11 10:52:02
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http://blog.csdn.net/daxiamit/article/details/6619075 http://hi.baidu.com/%BA%A3%B3%E6 ... 9cc7f1e7cd403e.html |
3Â¥2012-06-07 02:41:42
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zhang8826857: ½ð±Ò+5, ¡ïÓаïÖú 2012-06-11 10:52:10
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zhang8826857: ½ð±Ò+5, ¡ïÓаïÖú 2012-06-11 10:52:10
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matlab×Ô´øµÄgraythreshÓõľÍÊÇostu·½·¨£º help graythresh GRAYTHRESH Compute global image threshold using Otsu's method. LEVEL = GRAYTHRESH(I) computes a global threshold (LEVEL) that can be used to convert an intensity image to a binary image with IM2BW. LEVEL is a normalized intensity value that lies in the range [0, 1]. GRAYTHRESH uses Otsu's method, which chooses the threshold to minimize the intraclass variance of the thresholded black and white pixels. Class Support ------------- The input image I can be of class uint8, uint16, or double and it must be nonsparse. LEVEL is a double scalar. Example ------- I = imread('coins.png'); level = graythresh(I); BW = im2bw(I,level); imview(BW) See also im2bw. Reference page in Help browser doc graythresh |

5Â¥2012-06-07 08:43:27















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