how to make two images of same size without using imresize ?

good day all I have 2 images with size A = 377*365*3 and B =584 * 565*3 how do i make these to same size,My aim is to calculate sensitivity and specificity ,the problem when i use resize is, comparing A and B gives me 80% sensitivity but comparing B and A gives me 50%...is there any other way to make these images equal size

Answer 1

[Image Analyst]

You can use interp2() or griddedInterpolant.