I am planning to obtain the numerical information of an image and save it as a matrix in either text or excel. what is the best way to obtain it
I would suggest that you modify the code of the SaveImages module. This module will give you the infrastructure where the image you want can be loaded into memory as a variable. The variable is a Matlab matrix and then you can read in Matlab’s help about how to save variables in text (or comma-delimited) format.