Photo info on iPhone 4

Question

I'm picking photos from the photo albums on iPhone 4 with the help of UIImagePickerController. One question:

• I would like to verify the origin of the photo the user picked. Specifically speaking, I want to know that weather this photo was taken right by this iPhone 4, or was imported or downloaded from elsewhere. Where can I get this set of information? The corresponding NSDictionary?

Thanks in advance.

Answer 1

What you want is extracting EXIF info from the picture and check the camera-model.

You will never be sure that the picture is taken from THIS iPhone but chances are good :-)

Check this post : How to get EXIF data from my jpegs?