I have a problem with (undefined functions) in image processing toolbox

Hello,

I'm teaching a collage course (Digital image processing) and I face a problem in the lab software.

Some functions couldn't be used and a message showed in the screen said("undefined function"). I face the same problem with more than one function whiten the image processing toolbox.

You can see what I mean in this picture in the green rectangles:

please help me to solve this problem because i need it in the class I teach!

How can I define these functions in the software.

Thank you. Nora

Answer 1

[Mischa Kim]

Nora, you possibly have not installed/licensed the corresponding toolbox(es). What do you get when you execute in the MATLAB command window

 which maketform

It should be something like

 C:\Program Files\MATLAB\R2013b\toolbox\images\images\maketform.m

Alternatively you could use

 ver

to get a list of all installed toolboxes, and

 license('test','Image_Toolbox')  % returns 1 if toolbox is installed

to see if a particular toolbox is licensed.

[Nora]

Thank you very much Mischa Kim for your replay, I'm going to try the code. but what should I do if it wasn't installed?

Can I install the functions by its own?

[Mischa Kim]

I just noticed your warning msg (path cache). Check out this answer, which might resolve your issue.

If it does not, contact your system administrator or IT responsible, who will be able to tell you if the Image Processing Toolbox is part of the license. In short, if it is not, you're out of luck at the moment. You need the toolbox to access the functionality.

[Image Analyst]

When you type ver, if you have the Image Processing Toolbox, you should see something like this:

-------------------------------------------------------------
MATLAB                               Version 8.2        (R2013b)
Image Acquisition Toolbox            Version 4.6        (R2013b)
Image Processing Toolbox             Version 8.3        (R2013b)
MATLAB Compiler                      Version 5.0        (R2013b)
Signal Processing Toolbox            Version 6.20       (R2013b)

and so on. Do you see the Image Processing Toolbox listed?