imread function displaying error, Undefined function or method 'imread' for input arguments of type 'char',

I have checked that I am working from correct folder, checked that the image processing toolbox license is still valid and have used code from the examples to read in a didcom image and used a filter on it so the toolbox still seems to be working. Also I have tried reading images provided as examples such as imread('moon.tif') but still the error persists. Any help would be greatly appreciated.

Thanks

Answer 1

[Image Analyst]

What does this say:

>> which -all imread

Does it say this:

C:\Program Files\MATLAB\R2012b\toolbox\matlab\imagesci\imread.m

[Kamran Sattar Awaisi]

>> which -all imread says C:\Program Files\MATLAB\R2012b\toolbox\matlab\imagesci\imread.m but i am still having the error. Please guide

[Walter Roberson]

You might not have a licence for image processing toolbox