I am getting error in edge function like "Attempt to execute SCRIPT edge as a function:" b=edge(img​,'canny',0​.40); Can someone solve this error?

a=imread('D:\canal images\df.jpg'); imshow(a); title('Original');

img=rgb2gray(a); imshow(img); title('Grayscale');

b=edge(img,'canny',0.40); figure,imshow(b); title('canny');

Answer 1

[Jan]

This error occurs, if the parent folder of edge.m is the current folder. Try this:

cd(tempdir)

and run the code again. Does it help? If so, remember that it can have strange side-effects, if one of the toolbox folders is the current directory.

[Jainee Solanki]

Where should i write this code?

[Jan]

Try it in the command window and run the code again.

Do you know the debugger? Type this in the command window:

dbstop if error

Then Matlab stops, when the problem occurs and you can check the cause - here by

cd
which edge -all

Then you should see, which edge function is called. And if it is the edge.m in the toolbox folder, this contains the help section as comment only. Note that Matlab prefers an M-file in the current folder before the built-in functions. Therefore changing the current directory to a folder inside matlabroot is a bad idea.

Maybe you have another problem, but this is a likely reason.

[Jainee Solanki]

I m still getting this script error.Can you tell me from beginning how to solve it?

[Jainee Solanki]

Solved it