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how to find the largest region in binary image and replace all other region with black?

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Sokhib Tukhtayev 2017-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/338982-how-to-find-the-largest-region-in-binary-image-and-replace-all-other-region-with-black

评论： Sokhib Tukhtayev 2017-5-6

采纳的回答： Walter Roberson

randomm.jpg

I have a binary image (attached as 'randomm.jpg') that consists of several shapes.

How to extract the shape with most pixels (white) and replace other figures with black?

Thank you!

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Walter Roberson 2017-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/338982-how-to-find-the-largest-region-in-binary-image-and-replace-all-other-region-with-black#answer_265881

bwareafilt() asking to keep 1

https://www.mathworks.com/help/images/ref/bwareafilt.html

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Image Analyst 2017-5-6

在 MATLAB Online 中打开

binaryImage = bwareafilt(binaryImage, 1);

Sokhib Tukhtayev 2017-5-6

Awesome, thank you!

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