corner detection on chessboard

2013 1 7
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I = checkerboard(100,2,2);
C = corner(I);
??? Undefined function or method 'corner' for input arguments of type 'double'.
Is this error is due to version problem.?
I am currently using MATLAB R2008b.
No corner function is shown in help menu..

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Walter Roberson
Walter Roberson 2013-1-7

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Lalit Patil
Lalit Patil 2013-1-7
First i am generating chessboard.. on this chessboard i want to detect all corners..
on this page http://www.mathworks.in/help/images/ref/corner.html chessboard is given and corners are detected in red colour.. Same as i want to detect..
Walter Roberson
Walter Roberson 2013-1-7
Please refer to the Answer noted above. (Which I have just updated.)
Lalit Patil
Lalit Patil 2013-1-7
Ok.. Thank you.. I have to develope my algorithm..

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