I guess, its not that simple. If you have to read from the scanner, then I am afraid you have to interface with the device?? I personally have not done any in Matlab. But i think there is no alternative.
If you are doing post processing use:
READBMP Read image data from a BMP file.
READGIF Read an image from a GIF file.
READHDF Read an image from an HDF file.
READJPG Read image data from a JPEG file.
READPCX Read image data from a PCX file.
READPNG Read an image from a PNG file.
READTIF Read an image from a TIFF file.
READXWD Read image data from an XWD file.
RJPGC Read a JPEG image.
RTIFC Read a TIFF image.
To do real time acquisition from your Scanner you will have to get the programing
info from the scanner and figure it out yourself. You might be able to use
a MEX file or Active X in Matlab.