A problem with 'bwconncomp' function ....

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mmm ssss 2012-8-1

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采纳的回答： Walter Roberson

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hi all,

please i need a help this is a part of my code ,

T = maketform('affine',[cn -sn 0; 
                         sn cn 0; 
                        (size(im,2)/2-ct(2)) (size(im,1)/2-ct(1)) 1]);
im = imtransform(im,T);
BW = im>thr;
CC = bwconncomp(BW);

when i tried to run it ,i got this error : "??? Undefined function or method 'bwconncomp' for input arguments of type 'logical'."

what is the solution please?

Thanks

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Sean de Wolski 2012-8-1

What version of MATLAB are you using?

mmm ssss 2012-8-1

Thanks for your reply .

i used this 7.7.0.471 (R2008b)

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Walter Roberson 2012-8-1

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bwconncomp() was introduced in R2009a.

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Image Analyst 2012-8-1

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It could be newer than your version. Check here: http://www.mathworks.com/help/techdoc/rn/rn_intro.html Either that, or you overrode the definition with your own somehow.