范围阈值二值化处理。
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阈值二值化处理一般是大于n为1,小于n为0。
请问如果我想让图像(n1,n2)范围内的为1,而(0,n1)和(n2,255)范围的为0,请问要怎么改?
%读取一张图片,并显示
original_picture=imread('a.jpg');
%把图像转换成灰度图像
GrayPic=rgb2gray(original_picture);
%对图像进行二值化处理
Pic2=im2bw(original_picture,thresh);
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