diedaifa
所属分类:图形图像处理
开发工具:matlab
文件大小:1KB
下载次数:64
上传日期:2010-05-19 17:50:58
上 传 者:
faststar1987
说明: 迭代法求阈值的原理:
基于逼近的思想,步骤如下:
1. 求出图象的最大灰度值和最小灰度值,分别记为ZMAX和ZMIN,令初始阈值T0=(ZMAX+ZMIN)/2;
2. 根据阈值TK将图象分割为前景和背景,分别求出两者的平均灰度值ZO和ZB
3. 求出新阈值TK+1=(ZO+ZB)/2;
4. 若TK=TK+1,则所得即为阈值;否则转2,迭代计算。
( Iteration method threshold principle: based on the ideological approach, the steps are as follows: 1. Images obtained the maximum and minimum gray value of gray value, denoted ZMAX and ZMIN, so that initial threshold value T0 = (ZMAX+ ZMIN)/2 2. TK under the threshold will be divided into foreground and background images were obtained between the average gray value ZO and ZB 3. Calculate the new threshold TK+1 = (ZO+ ZB)/2 4. If TK = TK+1, then the proceeds shall threshold otherwise turn 2 iteration.)
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迭代法.txt (946, 2010-05-19)
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