How do i median combine 2-D arrays?

I have 2D arrays in text file format, arranged as rows and colums. These files correspond to pixel values from a CCD. cosmic ray rejection is done by median combining a number of these files, so essentially if i have 10 files, I need to combine element (0,0) with the same element in all ten files and get the median, and write that to a new file, then do the same with element (0,1) etc etc- only thing is - How?! :-) Maybe IMAQ has this facility, but i've not been able to locate it. Thanks!
john

Attached is an example that reads 3 files with 2D tables of numbers...and finds the median.
Using binary files and writing the result array to another file should be a simple modification...
Mads
MTO
Attachments:
FindMedian_Example.zip ‏14 KB

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How do i median combine 2-D arrays?

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