How to get smoothed edges afeter background removal ?

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voxey 2019-12-31

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/498530-how-to-get-smoothed-edges-afeter-background-removal

回答： Image Analyst 2019-12-31

How to get smoothed edges afeter background removal ? from below file exchange ?

https://in.mathworks.com/matlabcentral/fileexchange/73804-image-background-removal-by-user-hand

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KALYAN ACHARJYA 2019-12-31

编辑：KALYAN ACHARJYA 2019-12-31

There complete background is not yet remove. After only you should proceed for make smooth boundary.

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Answer 1

Image Analyst 2019-12-31

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/498530-how-to-get-smoothed-edges-afeter-background-removal#answer_408287

在 MATLAB Online 中打开

Take your binary image and smooth it then threshold at 0.5 and apply it.

windowSize = 9; % An odd number.  Bigger = more smoothing.
kernel = ones(windowSize)/windowSize^2;
blurryMask = conv2(mask, kernel, 'same') > 0.5;
% Mask the image using bsxfun() function to multiply the mask by each channel individually.
maskedRgbImage = bsxfun(@times, rgbImage, cast(blurryMask, 'like', rgbImage));