Issue using vision.Cas​cadeObject​Detector

I'm trying to use the command vision.CascadeObjectDetector to create a face detector object but when I do

faceDetector = vision.CascadeObjectDetector();

I encounter an error saying:

Error using vision.CascadeObjectDetector
License checkout failed.
License Manager Error -5
Cannot find a license for SR_Video_and_Image_Blockset.

Troubleshoot this issue by visiting:
http://www.mathworks.com/support/lme/R2015b/5

Diagnostic Information:
Feature: SR_Video_and_Image_Blockset
License path:
/Users/Hardy/.matlab/R2015b_licenses/license_Hardys-MBP_2603179_R2015b.lic:/Applications/MATLAB_R2015b.app/licenses/license.dat:/Applications/MATLAB_R2015b.app/licenses/*.lic
Licensing error: -5,357.

I just recently upgraded from trial to student version (Bought for $100). This command is from the Computer Vision Toolbox, and is included in the student version right? So I assume that I should be able to use it. Any solution??

[Image Analyst]

What do you see when you type ver on the command line? (Delete your license number and then paste results here.)

[Hardy Pham]

MATLAB                                                Version 8.6         (R2015b)
Simulink                                              Version 8.6         (R2015b)
Communications System Toolbox                         Version 6.1         (R2015b)
Computer Vision System Toolbox                        Version 7.0         (R2015b)
Control System Toolbox                                Version 9.10        (R2015b)
Curve Fitting Toolbox                                 Version 3.5.2       (R2015b)
DSP System Toolbox                                    Version 9.1         (R2015b)
Database Toolbox                                      Version 6.0         (R2015b)
Global Optimization Toolbox                           Version 3.3.2       (R2015b)
Image Acquisition Toolbox                             Version 4.10        (R2015b)
Image Processing Toolbox                              Version 9.3         (R2015b)
Instrument Control Toolbox                            Version 3.8         (R2015b)
Neural Network Toolbox                                Version 8.4         (R2015b)
Optimization Toolbox                                  Version 7.3         (R2015b)
Parallel Computing Toolbox                            Version 6.7         (R2015b)
Signal Processing Toolbox                             Version 7.1         (R2015b)
Simulink Control Design                               Version 4.2.1       (R2015b)
Stateflow                                             Version 8.6         (R2015b)
Statistics and Machine Learning Toolbox               Version 10.1        (R2015b)
Symbolic Math Toolbox                                 Version 6.3         (R2015b)
System Identification Toolbox                         Version 9.3         (R2015b)

I get this when i type in ver

[Hardy Pham]

As you can see, I have the computer vision system toolbox, so I'm not sure why commands from that toolbox are not working

[Walter Roberson]

The license might not have gotten installed properly. I suggest deactivating and reactivating.

Answer 1

[Madhu Govindarajan]

I recommend trying the following in MATLAB command window

>> license('checkout','video_and_image_blockset')

If the answer is not 1 from MATLAB, contact Installation support of MathWorks.

[mert oguzhan acar]

I got 1 from matlab but still ı am getting error .

[Walter Roberson]

Are you getting the error -5 message? Please show the complete error you are getting.

[Gnanasekar M S]

I am using online matlab which is free trail for 30 days ,when I tried this command faceDetector = vision.CascadeObjectDetector();It shows error like this

fapart1

Unable to resolve the name vision.CascadeObjectDetector.

and I tried your command in my command window It shows like this

license('checkout','video_and_image_blockset')

License checkout failed.

License Manager Error -5

Cannot find a license for video_and_image_blockset.

Troubleshoot this issue by visiting:

https://www.mathworks.com/support/lme/R2021a/5

Diagnostic Information:

Feature: video_and_image_blockset

License path: [e-mail]:[e-mail]:/home/mluser/.matlab/R2021a_licenses:/MATLAB/licenses/license.dat:/MATLAB/licenses

Licensing error: -5,0.

ans=

0

can you please tell how to resolve this error?

[VIJAYALAXMI NYAMAGOUDA]

yaa even same i got error

Answer 2

[Saira]

How to solve this error?

My Code is working well on MATLAB 2015a but when I run it on MATLAB 2017a, I got this error.

Error using imwrite

(line 420)

Expected DATA to be one of these types: numeric, logical. Instead its type was vision.CascadeObjectDetector.

Error in Trainingcode (line 38)

imwrite(Mouth,strcat('E:\SVM\JAFFE Local Features\', int2str(i),int2str(j), '.tiff'));