how to resize an object in binary image ?
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ElizabethR
le 20 Mar 2016
Commenté : ElizabethR
le 21 Mar 2016
i try to resize (minimize) an object in binary image, but I get the whole picture is to be small. even though I just wanted to minimize only its object. please help me. thanks
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Image Analyst
le 20 Mar 2016
If you want to shrink a binary image in place, without cropping out, then you can use imerode() to eat away outer layers of the binary blob(s).
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Image Analyst
le 20 Mar 2016
You can create a circle mask as shown in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_do_I_create_a_circle.3F
So if the mask is true in the circle and false outside, do
binaryImage(~mask) = true;
For what it's worth, I've also attached a circle masking demo.
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Walter Roberson
le 20 Mar 2016
You need to extract the object first and imresize() on the extracted part. Consider using regionprops with the Image property to get the extracted object.
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Walter Roberson
le 20 Mar 2016
props = regionprops(YourBinaryImage, 'Image');
extracted_image = props.Image;
smaller_extracted = imresize(extracted_image, [64 64]); %example output size
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