what's the difference between scaling two images based on scale factor (microns per pixel in each image) and scaling the images randomly (e.g bring two images to the same size regardless the scale factor)?
Resizing an image of size x X y such that new image size is x/c X y/c (reduce size) or cx X cy (increase size). c can be considered a scaling factor here.
Resizing images randomly to make them equal may involve unevenly changing image dimensions.