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Just wondering if there any automated method to make ratio image (I/F ratio or pixel-wise ratio) of MTRDR data. Since the image is projected, how to find denominator (or column median) in MTRDR data for extracting ratio spectra? 

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Hi Al,

After communicating with CRISM team scientist (Dr. Frank Seelos), he suggests:

"For this kind of thing it’s probably easier to work with the sensor space TERs and then move back into the projected space at the end of the workflow. However, the MTR IN (information) product does have the pixel traceability info into the source VNIR and IR image cubes, so with some indexing it is possible to work ‘in column’ in the MTRs."



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