Question

我目前正在开发一款iPhone应用程序，该应用程序使用带有自定义叠加层的UIImagePickerController拍摄照片。

不幸的是，我无法直接访问iPhone 4S，但有几位测试人员报告相机选择器在脸部周围画出绿色边框，如下所示：http://cdn.iphonehacks.com/wp-content/uploads/2012/03/camera_faces.jpg

由于此应用程序的性质，这是不可取的。

彻底搜索UIImagePickerController文档没有发现任何内容，同样我在这里找到的与面部检测相关的所有内容都提供了有关如何使用CIDetector或类似内容的说明。

如何在UIImagePickerController中禁用面部检测？

这是我的UIImagePickerController初始化代码：

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

试试这个 - ＆gt;

让我们说我们有一个名为 - RecordVideoViewController的UIViewController

实施 - 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

实施 - 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];
 }
}

实现此代码，希望这对您有所帮助。

Answer 2

查看这篇文章。这里有一些提示，但仍然无法在Apple的文档上找到有关此API的更多信息。 Proper usage of CIDetectorTracking

UIImagePickerController禁用iPhone 4S人脸检测（iOS 5.1）

2 个答案: