Problem in detecting the face of an input recorded video.

Hi.im using matlab7.10 R2010a..im making use of haarcascade_frontalface in my code bt when i run my code im getting a still image of my input.im supposed to get an output recorded video in which the face region is alone blocked and detected.im using windows 7 64 bit os.. when i run the same code in windows xp 32 bit os im getting the correct output..can someone help me how to solve this problem.. this is the error which im getting.

 ??? Undefined function or method 'FaceDetect' for input arguments of type 'char'.

Error in ==> demo at 24 Face = FaceDetect('haarcascade_frontalface_alt2.xml',Img);

>> >>

Answer 1

[Walter Roberson]

Perhaps the system with the error does not have the MATLAB File Exchange contribution installed; see http://www.mathworks.com/matlabcentral/fileexchange/19912

FaceDetect is not part of MATLAB itself.

Answer 2

[owday btoush]

??? Undefined function or method 'FaceDetect' for input arguments of type 'char'.