How to crop an image in MATLAB

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Kumar Arindam Singh 2017-3-17

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https://ww2.mathworks.cn/matlabcentral/answers/330337-how-to-crop-an-image-in-matlab

回答： Image Analyst 2017-3-17

I have this binary image. Now I want to crop this image in such a way that I have only the leaf part and the remaining part(which contains another angled black part) are removed. I wont use manual cropping. This should be by final image:

Thank You!

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回答（1 个）

Image Analyst 2017-3-17

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https://ww2.mathworks.cn/matlabcentral/answers/330337-how-to-crop-an-image-in-matlab#answer_259115

在 MATLAB Online 中打开

Simply invert then call bwareaopen() and imclearborder()

mask = bwareaopen(~mask, 1000);
mask = imclearborder(mask);
% Invert again if you want black on white (usually that's not a good idea though).
mask = ~mask;