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In my prototype I have to detect an image in real time, when an camera view is opened through my application it starts to capture through its view port now I am able to access the video frames individually using AVFoundation framework but I want to compare each and every frames with the images saved in the data base and show an alert if any match found.

Thanks in advance....

GuruPrasad R Gujjar
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    Not sure what your question is? "How do I extract a still image from a video stream?", "How do I compare an image to one in a database?" What have you tried so far? What is the format of your video stream? – Floris May 14 '13 at 04:30
  • I want to identify mac mine from my application when I open a camera view from my application and hold it in front of macmine I have to display an alert view telling that it is a mac mine. – GuruPrasad R Gujjar May 14 '13 at 04:38

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I would really suggest to use OpenCV it's a library with support for iOS as long as I know.

I've been using it with Python and C++ and prooved is a really powerful library.

http://opencv.willowgarage.com/wiki/

diegoaguilar
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    You should also try out SimpleCV which is easier to install, configure and even code...I think objects and features recognition would be better with it – diegoaguilar May 14 '13 at 05:06