Image Processing Toolbox Problems

2 min readJan 6, 2022

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’.

??? 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.

NOTE:-

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Hi,

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 Matlabsolutions, they will help you.

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