I have two images of the same matrix size (512x512) but different pixel spacing. One image has a pixel spacing of 0.7 and the other 0.4. How do I get the two images to have the same pixel spacing and still maintain the matrix size of both images.

Image Processing

Answer 1

[Chaya N]

You could extract the image pixel values into new arrays. This would preserve the size of the images and ignore pixel spacing (or consider them equal if you will). I would suggest using the impixel function.

[Slim]

I don't want to extract the pixels from the image, my aim is to make these images the same both in matrix size and pixel spacing so I can register them. At the moment my registration is failing because although my images are the same in size the spacing between my matrices are different.