how to set the pixel values to 1 and o's based on some threshold values

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senthil vadivu
senthil vadivu 2016-11-20
评论： senthil vadivu 2016-11-21
Eg. if redpixel>th and redpixel>green and greenpixel>blue then mark all the pixel values as 1 otherwise to 0

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Guillaume
Guillaume 2016-11-20
binaryimage = rgbimage(:, :, 1) > threshold ... red pixels greater than threshold
& ... AND
rgbimage(:, :, 1) > rgbimage(:, :, 2) ... red greater than green
& ... AND
rgbimge(:, :, 2) > rgbimage(:, :, 3); ... green greater than blue
Or in one line:
binaryimage = rgbimage(:, :, 1) > threshold & rgbimage(:, :, 1) > rgbimage(:, :, 2) & rgbimge(:, :, 2) > rgbimage(:, :, 3);

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