Position a resized matrix onto original matrix

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Mike Rovan 2019-10-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/487327-position-a-resized-matrix-onto-original-matrix

编辑： Mike Rovan 2019-10-24

If I have an original matrix consisting of 1 or more irregular shaped binary blogs, I cropped it by removing leading and trailing zeros then resized the cropped image using:

imresize(cropped,1.5,'nearest');

i then cropped the resized image using the same previous technique

How do i now position the cropped resized image on top of the original image

i tried taking the Center of mass with regionprops(X,'centroid'); of the original image, the cropped image, and the cropped resized image

then positioning the cropped resized image to start at the location of the center of mass(original image,)-center of mass(cropped resized image,)+1

However, the problem is that the resized image doesnt match up completely with the original. I wanted it so that it is over the original in the exact correct position, but with my method there are some pixels where it doesnt overlap centered and you can see the pixels of the original image not being covering by the resized image

Is there another method that would work better?