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1. 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
2. How to find a new Type Locality with CRISM?
   

   crism How to find a new Type Locality with CRISM?

   Nathan Weinstein posted a topic in For data users

   Hello, What do I need to define a new mineral Type Locality? How do I search for new minerals that have not yet been defined with a type locality? I thought of calculating the RGB color of a target mineral lab reference spectrum, with related summary products and then looking for pixels in the related Browse Product scene that have a similar color. Is it a good way? If yes, how do I do the band math on a spectrum instead of on an image? And is there a way to do this with the codes from the directory ‘CAT_ENVI\save_add\CAT_programs\Additions\SummaryParams2014’ ? Thanks, Nathan

   • March 16, 20223 yr
   • 1 reply
   • • cat
     • band math
     • browse products
     • type locality