Re: floor()

[Shai Ayal]

It works for me using the cygwin 0ctave 2.1.73:

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octave:1> mm=[1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  0.996078431372549 0.980392156862745 0.992156862745098 1 1 1 1 1 1 1
> 1 0.556862745098039 0.733333333333333 0.733333333333333 
0.733333333333333 0.733333333333333 0.733333333333333 0.737254901960784 
0.729411764705882 0.996078431372549
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
> ];
octave:3> floor(mm)
ans =

  1  1  1  1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1
  0  0  0  1  1  1  1  1  1  1
  1  0  0  0  0  0  0  0  0  0
  1  1  1  1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1
  1  1  1  1  1  1  1  1  1  1

octave:12> which floor
floor is a built-in function

Are you sure you are using the floor function correctly ?
Shai

shoker_17 wrote:
> Octave Version:  2.1.72
> Knowledge of Octave: Beginner
>
> ############### matrix of an image#######################
> 1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  0.996078431372549 0.980392156862745 0.992156862745098 1 1 1 1 1 1 1
>  1 0.556862745098039 0.733333333333333 0.733333333333333 0.733333333333333
> 0.733333333333333 0.733333333333333 0.737254901960784 0.729411764705882
> 0.996078431372549
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
> ############### matrix of an image#######################
>
> The above matrix was used during image floor() computation. When I used
> floor() to round down the decimal values, I got the following result which
> is not what I wanted.
>
> ############### result#######################
>  1 1 1 1 1 1 1 1 1 1
>  0 0 0 0 0 0 0 0 0 0
>  0 0 0 0 0 0 0 0 0 0
>  0 0 0 1 1 1 1 1 1 1
>  1 0 0 0 0 0 0 0 0 0
>  0 0 0 0 0 0 0 0 0 0
>  0 0 0 0 0 0 0 0 0 0
>  1 1 1 1 1 1 1 1 1 1
>  1 1 1 1 1 1 1 1 1 1
>  0 0 0 0 0 0 0 0 0 0
> ############### result#######################
>
> Its not difficult for us to see that the result does not tally with the
> original image.
> Anyone faced this problem before?? Please enlighten me!!
>
> H E L P!
>
> Shoker