UIImagePickerController disable iPhone 4S face detection (iOS 5.1) - ios

Question

I am currently developing an iPhone app that makes use of a UIImagePickerController with a custom overlay to take photos.
Unfortunately I do not have direct access to an iPhone 4S but several testers have reported that the camera picker is drawing a green border around faces exactly like this: http://cdn.iphonehacks.com/wp-content/uploads/2012/03/camera_faces.jpg
Due to the nature of this app this is not desirable.
A thorough search of the UIImagePickerController docs didn't turn up anything and similarly everything I could find on here relating to face detection was providing instructions in how to use a CIDetector or similar.
How can I disable face detection in my UIImagePickerController?
Here is my initialisation code for the UIImagePickerController:
UIImagePickerController *cameraPicker = [[UIImagePickerController alloc] init];
[cameraPicker setSourceType:UIImagePickerControllerSourceTypeCamera];
[cameraPicker setCameraDevice:UIImagePickerControllerCameraDeviceRear];
if ([UIImagePickerController isFlashAvailableForCameraDevice:cameraPicker.cameraDevice]){
[cameraPicker setCameraFlashMode:UIImagePickerControllerCameraFlashModeOn];
}
[cameraPicker setShowsCameraControls:NO];
[cameraPicker setCameraOverlayView:cameraOverlayView];
cameraPicker.delegate = self;
[self presentModalViewController:cameraPicker animated:YES];

Answer 1

Try This -->
Lets Say We have one UIViewController named as - RecordVideoViewController
Implementation of -- RecordVideoViewController.h
#import <UIKit/UIKit.h>
#import <MediaPlayer/MediaPlayer.h>
#import <MobileCoreServices/UTCoreTypes.h>
#import <AssetsLibrary/AssetsLibrary.h>
#interface RecordVideoViewController : UIViewController
- (IBAction)recordAndPlay:(id)sender;
-(BOOL)startCameraControllerFromViewController:(UIViewController*)controllerusingDelegate:
(id)delegate;
-(void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error
contextInfo(void*)contextInfo;
#end
Implementation of -- RecordVideoViewController.m
- (IBAction)recordAndPlay:(id)sender {
[self startCameraControllerFromViewController:self usingDelegate:self];
}
-(BOOL)startCameraControllerFromViewController:(UIViewController*)controller
usingDelegate:(id )delegate
{
// 1 - Validattions
if (([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] ==
NO)
|| (delegate == nil)
|| (controller == nil)) {
return NO;
}
// 2 - Get image picker
UIImagePickerController *cameraUI = [[UIImagePickerController alloc] init];
cameraUI.sourceType = UIImagePickerControllerSourceTypeCamera;
// Displays a control that allows the user to choose movie capture
cameraUI.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];
// Hides the controls for moving & scaling pictures, or for
// trimming movies. To instead show the controls, use YES.
cameraUI.allowsEditing = NO;
cameraUI.delegate = delegate;
// 3 - Display image picker
[controller presentViewController:cameraUI animated:YES completion:nil];
return YES;
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:
(NSDictionary *)info {
NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
[self dismissViewControllerAnimated:YES completion:nil];
// Handle a movie capture
if (CFStringCompare ((__bridge_retained CFStringRef) mediaType, kUTTypeMovie, 0) ==
kCFCompareEqualTo) {
NSString *moviePath = [[info objectForKey:UIImagePickerControllerMediaURL] path];
if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath)) {
UISaveVideoAtPathToSavedPhotosAlbum(moviePath,
self,#selector(video:didFinishSavingWithError:contextInfo:),nil);
}
}
}
-(void)video:(NSString*)videoPath didFinishSavingWithError:(NSError*)error contextInfo:
(void*)contextInfo {
if (error) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error" message:#"Video Saving
Failed"
delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
} else {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Video Saved" message:#"Saved To
Photo Album" delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
}
}
Implement This code it, i hope this will help you .

Answer 2

Check out this post. There are some hints here, but still can't find much info outside of Apple's docs on this API.
Proper usage of CIDetectorTracking