How to compare two images in matlab?

Hi,

I don't know if this is the right place to post this, but I hope so...

How can I compare two images or two matrices in matlab with each other. The thing is, I have a couple of master images and I want to compare a new image with them to see which one resembles the most to the new image. They all have the same size.
Is there a general approach to this problem or some script I can use?
I tried subtracting one from another but this doesn't take into account that the image may be rotated or translated.
The images represent the various displacements of potentiometers of a human lying on a mattress. Basically it represents the displacements of the mattress.
I have the image of different humans lying on their back, on their side, on their front,...
and now I want to know how a new person is lying on the mattress based on the new image.

I hope I have made myself clear and you understand everything.

Many thanks,
Jurgen
.

Relevant Pages

  • How to compare two images in matlab?
    ... I have a couple of master images and I want to compare a new image with them to see which one resembles the most to the new image. ... The images represent the various displacements of potentiometers of a human lying on a mattress. ...
    (sci.stat.math)
  • Re: How to compare two images in matlab?
    ... I have a couple of master images and I want to compare a new image with them to see which one resembles the most to the new image. ... The images represent the various displacements of potentiometers of a human lying on a mattress. ...
    (sci.stat.math)