How to check a image selected is Panorama image or Not

Question

How to check, the image selected from UIImagePickerController is a Panorama Image or not?

Answer 1

In this UIImagePickerController delegate method (be sure to add delegate methods to your View Controller class):

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
  [self dismissViewControllerAnimated:YES completion:NULL];
  UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];   

  // determine if it's panorama by checking its dimension
  CGFloat imageWidth = image.size.width;
  CGFloat imageHeight = image.size.height;

  // display the image if needed
  [self.imageView setImage:image];

  self.imagePickerController = nil;
}

Theoretically panorama images have much longer width than normal image. But this can't check if it is a web image downloaded from elsewhere.