[Octave-bug-tracker] [bug #45131] image package: rgb2hsv is not compatible to Matlab

[Avinoam Kalma]

URL:
  <http://savannah.gnu.org/bugs/?45131>

                 Summary: image package: rgb2hsv is not compatible to Matlab
                 Project: GNU Octave
            Submitted by: avinoam
            Submitted on: Mon May 18 14:26:23 2015
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Avinoam
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:


In Matlab 2010A


>> B = uint8(100*ones(2,2,3));
>> rgb2hsv(double(B))

ans(:,:,1) =

     0     0
     0     0


ans(:,:,2) =

     0     0
     0     0


ans(:,:,3) =

   100   100
   100   100


In Octave


>> B = uint8(100*ones(2,2,3));
>> rgb2hsv(double(B))
error: rgb2hsv: floating point images may only contain values between 0 and 1
error: called from
    rgb2hsv at line 47 column 5


double(B) is in the range [0:255] and not in [0:1]
 





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