how can i detect edges

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Naomi Penelope
Naomi Penelope 2021-7-8
编辑： DGM 2021-7-8
i am trying to find the edges on my image using this code
I = imread('image.tif');
imshow(I)
BW1 = edge(I, 'Canny');
BW2 = edge(I, 'Prewitt');
imshowpair(BW1, BW2, 'montage')
but i get the following error
Execution of script edge as a function is not supported:
/Users/betty/Documents/MATLAB/edge.m
Error in edge (line 3)
BW1 = edge(I, 'Canny');
please help

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回答（1 个）

DGM
DGM 2021-7-8
编辑：DGM 2021-7-8
You have some script labeled 'edge.m' that's overloading the function you're trying to use. Use unique names for files and variables so that doesn't happen.
which edge -all
Will list all instances of edge.m on the path. Rename the one that's causing the conflict (the one in the error message), or remove it from the path.

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