Undefined function 'dwt2' for input arguments of type 'uint8'

Undefined function 'dwt2' for input arguments of type 'uint8'

I get this error when running the code below:

[ll1,hl1,lh1,hh1]=dwt2(ROIout,'db1');

ROIout is the ROI output of a DICOM image which was converted to uint 8.

Thanks in advance.

[Ankita Bansal]

Hi, can you share ROIout and which version of MATLAB you are using?

[umair ilyas]

Input image A is undefined or invalid.

>> bfilter2

Error using bfilter2 (line 5)

Input image A is undefined or invalid.

[Walter Roberson]

What are you expecting to have happen when you invoke bfilter2 as a command with no arguements ?

Answer 1

[Image Analyst]

So, try casting to double and see if that works:

[ll1, hl1, lh1, hh1] = dwt2(double(ROIout), 'db1');

[Sai Challa]

It didn't work.

Undefined function 'dwt2' for input arguments of type 'double'.

This is the error, I get.

[Image Analyst]

Are you sure you have the Wavelet Toolbox installed? Type ver to double check.

Answer 2

[Sajjad Ali]

I have Wavelet Toolbox installed I tried your solution but it did not worked error is same still

[Image Analyst]

Whose solution did you try? You forgot to post any code. How do you think anyone could even begin to help you. All you've done is to make an announcement. You haven't even asked a question, nor given anyone anything whatsoever to help you solve your problem.

[Jan]

Please show us the result of

which dwt2 -all
S = license('inuse')

[Mohammad Bhat]

 which dwt2 -all
 S = license('inuse')
 'dwt2' not found.

 S = 

 1x2 struct array with fields:

    feature
    user

what to do now

[Walter Roberson]

You need to reinstall the Wavelet toolbox and then command

rehash toolboxcache