I have a mask(mask is for an image) which is saved in .mat format. Now, i want to take the boundary of this mask. Is it possible to convert from mask to boundary? Can anyone kindly guide me?
MATLAB: How to get the boundary points
boundaryImage Processing Toolbox
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Assuming you have a good binary image, you do this
measurements = regionprops(logical(binaryImage), 'Area');allAreas = [measurements.Area];DON'T USE IMAGE AS THE NAME OF YOUR VARIABLE. It's a built in function and you will overwrite it if you do that. It's never a good idea to use the names of functions or keywords as variable names. I probably wouldn't do it the same way as you but it depend on what your image looks like. For example, I wouldn't burn the perimeter into the image like you're doing - I'd use bwboundaries() and just display the boundaries in the overlay above the image. I'd maybe change some other things too, but whatever, if it works, then fine.
If f1 is a uint8 RGB image, you can set
f1(~mask) = 255;See attached masking demo, attached below this image it creates:
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