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1. Mineral lab reference color calculation for browse product
   

   crism Mineral lab reference color calculation for browse product

   Nathan Weinstein posted a topic in For data users

   Hello, For my thesis completion: I’m trying to calculate the color of a lab reference mineral with the summary parameters formulations as Viviano et al. (2014) did in this figure (9): For that, I used the relevant summary parameters formulations described in Viviano et al. (2014), table 2, and section 4. But first, to check that my calculations are correctly implemented (using Matlab), I tried to calculate them on an IF_TER cube to reproduce the same browse product as I would get if I opened it by the pre-calculated summary parameters bands in the SU_TER cube (as was shown originally in the data processing pipeline by Seelos et al. 2011). Unfortunately, it wasn’t a matching result. What could be the problem? I appreciate any help you can provide. Nathan

   

   • January 20, 20233 yr
   • 10 replies
   • • summary parameters
2. How the Spectral Summary Parameters are converted to 8-bit?
   

   crism How the Spectral Summary Parameters are converted to 8-bit?

   Nathan Weinstein posted a topic in For data users

   Hello, How exactly is each summary product converted to an 8-bit RGB channel component of the browsing product? Is there a code procedure in CAT to use with IDL? Are the values in the summary product at a normalized intensity from 0 to 1? If so then is it only left to convert the values to a range [0, 255]? Thanks, Nathan

   • March 16, 20223 yr
   • 4 replies
   • • cat
     • browse products
     • summary parameters