Instead of INTERP2 I'd prefer imresize(Img, [nROWS, nCOLS], 'lanczos3').
But to be exact: Every resizing add artifacts to the image. Of course it is necessary for some cases, e.g. an automatic comparison. But if anybody uses the method for cinical decision making keep in mind, that the results must be compared visually again using the original resolution. Do never, never, never plan a surgical operation, because the patient has a Moiree pattern!
I'm not joking. A lot of healthy legs and arms have been amputated due to missinterpreted images.
