Le 14/07/2015 11:59, Shameem A Puthiya Parambath a écrit :

Hi,

I pass a 3D integer matrix to the label function in scikit.measure

My original matrix contains integers in the range {-1..4}. But he output matrix from label function contains label from {1..199}. I am expecting it to be between {-1 .. 4}. Why so ?

--

Hi Shameem,

scikit.measure.label labels the connected components in your data (from the documentation):

"""
Two pixels are connected when they are neighbors and have the same value.
"""

If you look at the first example in the documentation:
http://scikit-image.org/docs/dev/api/skimage.measure.html#skimage.measure.label

you'll notice that the input array contains integers in the range {0..1} but the output labels are in the range {0...4}.

Otherwise what would you expect from the label function?

Kind Regards,

Kevin