profile_line

[Jaime Lopez Carvajal]

Sorry, the correct coordinates are:
coords = np.array([[0, 0],

       [0, 0],
       [1, 1],
       [1, 2],
       [2, 3],
       [2, 3],
       [3, 4],
       [4, 5],
       [4, 6],
       [5, 6],
       [5, 7],
       [6, 8],
       [7, 9]])


On Thursday, April 14, 2016 at 11:42:01 AM UTC-4, Jaime Lopez Carvajal 
wrote:
>
> HI friends,
>
> I am having problems with *profile_line function*, because I want to get 
> gray values following some coordinates, but it is given to me wrong gray 
> values
> that does not exist in the original image, like 128, 126 or 64.
>
> image = np.array([[170, 170,  70,  70,  70,  70,  70,  70,  70,  70],
>        [170, 170,  70,  70,  70,  70,  70,  70,  90,  70],
>        [170, 170, 170,  70,  70,  70,  70,  70,  70,  70],
>        [170, 170, 170,  70,  70,  70,  70,  70,  70,  70],
>        [170, 170, 170,  70,  70,  70,  70,  70,  70,  70],
>        [170, 170, 170, 170,  70,  70,  70,  70,  70,  70],
>        [110, 170, 170, 170,  70,  70,  70,  70,  70,  70],
>        [ 50, 170, 170, 170,  70,  70,  70,  70,  70,  10],
>        [ 50,  50, 170, 170,  70,  70,  70,  70,  10,  10],
>        [ 50, 110, 110, 110,  70,  70,  70,  70,  10,  10]], dtype=uint8)
>
>
> coords = np.array([[70,  0],
>
>        [70,  0],
>        [71,  1],
>        [71,  2],
>        [72,  3],
>        [72,  4],
>        [73,  4],
>        [74,  5],
>        [74,  6],
>        [75,  7],
>        [75,  8],
>        [76,  8],
>        [77,  9]])
>
>
> gray_values = profile_line(image,(0,0),(7,9)).astype(int)
>
> gray_values
>
> array([170, 170, 128, 126,  70,  70,  70,  70,  70,  70,  70,  64,  10])
>
>
> but the correct values would be:
>
> gray_values
>
> array([170, 170, 170, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70])
>
>
> Do you know why this is happening? Any suggestion?
>
>
> Thanks in advance, Jaime
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/scikit-image/attachments/20160414/6be5f044/attachment.html>