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How can I complete one of these two rectangles? I want to use it as mask for RGB image.

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Oveis Hassanijalilian
评论： Oveis Hassanijalilian 2014-11-10

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Image Analyst
Image Analyst 2014-11-10
Use bwconvhull();
% Get convex hull of mask.
mask = bwconvhull(mask);
% Mask the image using bsxfun() function
maskedRgbImage = bsxfun(@times, rgbImage, cast(mask, class(rgbImage)));
You can use ~mask in the cast() if you want the inverse of the mask.

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