Image Processing Toolbox Problems

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Brandon Slattery
Brandon Slattery 2011-12-14
评论： DGM 2024-9-28
Hi
I have been having problems with using the imshow function, and other functions related to the image processing toolbox. I've been getting messages like these when I try to use them:
??? Undefined function or variable 'implay'.
??? Undefined function or variable 'imtool'.
or
??? Undefined function or method 'imshow' for input arguments of type 'uint8'.
I'm pretty sure I have the image toolbox installed because when i check the version this shows up in the list:
Image Processing Toolbox Version 7.2 (R2011a)
So if anyone could provide any help I would really appreciate it as this is kind of an urgent matter.
Thanks.

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Wayne King
Wayne King 2011-12-14
Hi Brandon, Can you use any of the functions in Image? If not, are you working in a networked configuration where you have to checkout licenses?
What does:
license('test','image_toolbox')
return?
If that returns a 1, then perhaps try
addpath(genpath([matlabroot '\toolbox\images\']))
savepath
If you are in a networked configuration, check with your local MATLAB administrator. If you have a standalone installation and the above suggestion does not work, do contact MathWorks, they will help you.
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Aboozar S
Aboozar S 2024-9-27
编辑：Aboozar S 2024-9-27
for me it gave 1 for license and after adding and saving the path it still gives me the same error, what should I do?
I'm on linux and have R2024a, my problem was with imguassfilt function
the error is: undefined function 'imguassfilt' for input arguments of type 'string'\'double'
the code line is: A=imguassfilt(B,5,FilterDomain='spatial')
B is a 200x180 double
DGM
DGM 2024-9-28
I'm not the one to ask to troubleshoot messed up installations, but if the rest of IPT works, this is equivalent:
% given this parameter
sigma = 5;
% this is the same
A = imgaussfilt(inpict,sigma);
% as this
fk = fspecial('gaussian',2*ceil(2*sigma)+1,sigma);
B = imfilter(inpict,fk,'replicate');
... but if the rest of IPT is somehow not on the path, that won't help either.

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