MATLAB Central Newsreader - image processing toolbox error

image processing toolbox error

Sivagami samy — Wed, 04 Nov 2009 15:24:03 -0500

i am using matlab7.0. i am n ew to this software. is there any rules to follow to include image processing toolbox functions....

>> I=imread('d:\matlab7\img_mri_brain_tumor.jpg');
>> g=entropy(I)
??? Undefined command/function 'entropy'.

how to solve this error.

Re: image processing toolbox error

Steve Eddins — Wed, 04 Nov 2009 15:38:06 -0500

Sivagami samy wrote:
> i am using matlab7.0. i am n ew to this software. is there any rules to follow to include image processing toolbox functions....
>
>>> I=imread('d:\matlab7\img_mri_brain_tumor.jpg');
>>> g=entropy(I)
> ??? Undefined command/function 'entropy'.
>
> how to solve this error.

Hi Sivagami,

Your software version is 5.5 years old. The function entropy (and many,
many others mentioned in the current version of the documentation
available online) was added later. So you might want to consider
upgrading to the latest version of MATLAB and the Image Processing Toolbox.

---
Steve Eddins
http://blogs.mathworks.com/steve/

Re: image processing toolbox error

Wayne King — Wed, 04 Nov 2009 15:43:04 -0500

"Sivagami samy" <sivagamithiru@gmail.com> wrote in message <hcs6aj$kkh$1@fred.mathworks.com>...
> i am using matlab7.0. i am n ew to this software. is there any rules to follow to include image processing toolbox functions....
>
> >> I=imread('d:\matlab7\img_mri_brain_tumor.jpg');
> >> g=entropy(I)
> ??? Undefined command/function 'entropy'.
>
> how to solve this error.
Hi, I see that ImageAnalyst has been trying to help you and giving you good advice.

Are you sure you have the Image Processing Toolbox installed? If you type

>>ver

at the command prompt is there an entry for the Image Processing Toolbox?

Wayne