[Tcl-nap-users] Missing values

[salah j. <s_...@ya...>]

Hi all
   
  While doing some image analysis i did NDVI "near-red/near+red" , some pixel values of  both images has zero value thats mean (0-0)/(0-0)  afetr thai i trid to get the max but i get a strange result.
   
  how can i get the max value in that case.
   
    
   
   

		
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