我在iPhone应用程序上工作,我试图实现CIDetectorEyeBlink以检查图像中的人是否闭眼。但是LeftEyeClosed和rightEyeClosed属性总是返回0 / NO。
我粘贴了一些我的代码来实现。
CIImage* image = [CIImage imageWithCGImage:originalImage.CGImage];
CIDetector* detector = [CIDetector detectorOfType:CIDetectorTypeFace
context:nil options:[NSDictionary dictionaryWithObject:CIDetectorAccuracyHigh forKey:CIDetectorAccuracy]];
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES], CIDetectorEyeBlink, [NSNumber numberWithBool:YES], CIDetectorSmile, nil];
NSArray* features = [detector featuresInImage:image options:options];
for(CIFaceFeature* faceObject in features)
{
NSLog(@"TEST left eyeblink: %@", faceObject.leftEyeClosed ? @"YES" : @"NO");
NSLog(@"TEST right eyeblink: %@", faceObject.rightEyeClosed ? @"YES" : @"NO");
}
答案 0 :(得分:8)
我遇到了同样的问题,但在尝试了这个tutorial后,我意识到我没有添加:CIDetectorImageOrientation选项,例如:
NSDictionary *detectorOptions = @{ CIDetectorAccuracy : CIDetectorAccuracyHigh };
CIDetector *faceDetector = [CIDetector detectorOfType:CIDetectorTypeFace context:nil options:detectorOptions];
NSArray *features = [faceDetector featuresInImage:[CIImage imageWithCGImage:_imageView.image.CGImage]
options:@{ CIDetectorSmile : @YES,
CIDetectorEyeBlink : @YES,
CIDetectorImageOrientation :[NSNumber numberWithInt:ORIENTATION_NUMBER] }];
现在它工作顺利;)
答案 1 :(得分:0)
您的代码没有任何问题。眨眼检测器将在某些图像上成功并在其他图像上失败,而不是一致。在几张图片上尝试自己。