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

1
votes

I'd like to call functions like imgradientxy or gray2ind in matlab, but either one will cause the error of Undefined function 'imgradientxy' for input arguments of type 'uint8'.

I'm using R2012a version and added toolbox to path.

MATLAB Version: 7.14.0.739 (R2012a)

Mapping Toolbox Version 3.5 (R2012a)

imgradientxy and gray2ind are native functions of matlab. Why is that happening?

1
matlabimage-processing
No. They are NOT native to MATLAB. They are part of the image processing toolbox. - user85109
@woodchips But I've included the image processing toolbox - Ovilia
check which imgradientxy to make sure the functions are visible to matlab - Jonas
Seems like your matlab doesn't see the imgradientxy ... (if I'm not mistaken it only appeared at the Image Processing Toolbox of Matlab 2012b, and you have 2012a) - bla
exist imgradientxy ans = 0 - Ovilia

1 Answers

4
votes

The imgradient and imgradientxy functions appear to be new to MATLAB Version R2012b, according to the image processing release notes.

I am, however, using R2011a, and I have access to gray2ind. If you still cannot find that one, type ver to insure you have properly loaded the image processing toolbox.