wavelet toolbox

i am using MATLAB 2010a in my college.i think wavelet toolbox is not installed. i could not execute the command [cA cH cV cD]=dwt2(img,'db4'). please provide me a solution.whether i have to install new version of MATLAB. Thanks in advance..

Answer 1

[Walter Roberson]

The wavelet toolkit is optional and extra cost, even for the Student Version . You will have to arrange a license with your college or else purchase it.