Image processing toolbox not working

Hello,

I installed matlab with the image processing toolbox, but it doesn't work.

When I try to use the toolbox's functions matlab can't find them:

     >> dicomread
Undefined function or variable 'dicomread'.

The ver command doesn't show the imaging toolbox as being installed:

-----------------------------------------------------------------------------------------------------
MATLAB                                                Version 9.5         (R2018b)
Simulink                                              Version 9.2         (R2018b)
RF Toolbox                                            Version 3.5         (R2018b)
Signal Processing Toolbox                             Version 8.1         (R2018b)
Statistics and Machine Learning Toolbox               Version 11.4        (R2018b)
Symbolic Math Toolbox                                 Version 8.2         (R2018b)

However, the license command tells me the opposite.

>> license('test', 'image_toolbox')

ans =

     1

>> license('checkout','image_toolbox')

ans =

     1

Thanks for your help.

[Walter Roberson]

As far as MATLAB can tell you have the toolbox licensed but not installed.

[Jan]

The add-on explorer shows that it's installed:

[Qi Li]

Do you mind to restart your matlab or restart your computer and try that again?

[Walter Roberson]

The image shows you have Image Processing Toolbox installed in R2020b, but your ver shows you are using R2018b

[Jan]

@Qi Li I did restart my computer but the image toolbox still doesn't work.

@Walter Roberson I installed the imaging toolbox and Matlab at the same time. So there's an version mismatch between the imaging toolbox and matlab for the 2018b installation?

What's the fastest way to make it work? Install matlab 2020b?

[Jan]

I installed matlab 2020b along with the image processing toolbox and the image processing toolbox still doesn't work.

>> ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.9.0.1592791 (R2020b) Update 5
MATLAB License Number: 6XXXXXXX
Operating System: Microsoft Windows 10 Enterprise Version 10.0 (Build 18362)
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB                                                Version 9.9         (R2020b)
Simulink                                              Version 10.2        (R2020b)
RF Toolbox                                            Version 4.0         (R2020b)
Statistics and Machine Learning Toolbox               Version 12.0        (R2020b)
Symbolic Math Toolbox                                 Version 8.6         (R2020b)

>> license('test', 'image_toolbox')
ans =
     1

Can you please help?

[Walter Roberson]

Odd, it does show up for me on Mac:

-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.9.0.1592791 (R2020b) Update 5
MATLAB License Number: 1XXXXXXXX
Operating System: Mac OS X  Version: 10.15.7 Build: 19H524 
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB                                                Version 9.9         (R2020b)
Simulink                                              Version 10.2        (R2020b)
Communications Toolbox                                Version 7.4         (R2020b)
Curve Fitting Toolbox                                 Version 3.5.12      (R2020b)
DSP System Toolbox                                    Version 9.11        (R2020b)
Global Optimization Toolbox                           Version 4.4         (R2020b)
Image Processing Toolbox                              Version 11.2        (R2020b)
Optimization Toolbox                                  Version 9.0         (R2020b)
Signal Processing Toolbox                             Version 8.5         (R2020b)
Simscape                                              Version 5.0         (R2020b)
Simscape Electrical                                   Version 7.4         (R2020b)
Symbolic Math Toolbox                                 Version 8.6         (R2020b)

[Jan]

I had to add the folder C:\Program Files\MATLAB\R2020b\toolbox\images by hand, now it works.

Unlike for the RF toolbox matlab didn't add it to the path for the signal processing toolbox automatically for some reason...

[Jan]

>> ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.9.0.1592791 (R2020b) Update 5
MATLAB License Number: 6XXXXXXXX
Operating System: Microsoft Windows 10 Enterprise Version 10.0 (Build 18362)
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB                                                Version 9.9         (R2020b)
Simulink                                              Version 10.2        (R2020b)
Image Processing Toolbox                              Version 11.2        (R2020b)
RF Toolbox                                            Version 4.0         (R2020b)
Statistics and Machine Learning Toolbox               Version 12.0        (R2020b)
Symbolic Math Toolbox                                 Version 8.6         (R2020b)