DMD ROI Image Registration Correct Procedure

I fixed the problem. I was kind of sheepish about the question and don't want to leave it posted.

Answer 1

[Anumeha]

Hi Samuel,

I understand that “imresize” is not a good option for you while working with multiple sized images and transformation matrices. In most image processing problems, “imresize” is not used due to resolution differences and other issues. The solution to your problem is to use tranformation on ROI coordinates, and not on the mask. Check out this documentation page:

https://www.mathworks.com/help/images/ref/affinetform2d.transformpointsforward.html

using "tform" within this function "transfromPointForward" would help transform your ROI points and it wouldn’t depend on the size of the image, so you can remove the “imresize” lines.

Hope this helps!

[Samuel]

I figured out what I did wrong. Thanks!