How to overlay camera capture image? - ios

Question

I am replacing the part of image by capture image from camera. i need to perform the activity like this app in my application. https://itunes.apple.com/in/app/replace-my-face-funny-girls/id794033892?mt=8
I need a way of how can i take picture from background view with super view image and save the new generated image with merging of both image.
Please suggest me solution.
The simple work i did
- (void)viewDidLoad {
[super viewDidLoad];
self.picker = [[UIImagePickerController alloc] init];
self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.picker.delegate = self;
self.picker.allowsEditing = NO;
self.picker.showsCameraControls = NO;
self.picker.cameraDevice = UIImagePickerControllerCameraDeviceFront;
CGRect overlayRect = CGRectMake(0, 0, self.imageView.frame.size.width,self.imageView.frame.size.height);
UIView *overlayView = [[UIView alloc] initWithFrame:overlayRect];
UIImageView *capture_image=[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.imageView.frame.size.width,self.imageView.frame.size.height)];
capture_image.image=[UIImage imageNamed:#"1.jpg"];
[overlayView addSubview:capture_image];
[self.picker setCameraOverlayView:overlayView];
[self.navigationController presentViewController:self.picker animated:YES completion:nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerOriginalImage];
self.imageView.image = chosenImage;
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
Please also suggest me if there is any repository working like this approach.

Answer 1

About capturing the image: you might want to look at FastttCamera, which allows you to set the camera view to your defined image view and crops the image accordingly.
Good luck!