ios开发之人脸识别（给眼睛打上马赛克）

翻滚的code

于 2017-11-03 09:16:41 发布

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分类专栏：人脸识别文章标签：人脸识别

本文链接：https://blog.youkuaiyun.com/autom_lishun/article/details/78425004

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本文介绍了一种使用Objective-C进行图像处理的方法，包括加载图片、显示图片并进行面部特征检测的过程。通过CIDetector组件实现了面部数据的获取，并对检测结果进行了简单的处理。

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#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    UIImage *aImage = [UIImage imageNamed:@"证件照.jpg"];
    
    UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, aImage.size.width, aImage.size.height)];
    imageView.center = self.view.center;
    imageView.layer.borderWidth = 1.0;
    imageView.layer.masksToBounds = YES;
    //自适应图片宽高比例
    imageView.contentMode = UIViewContentModeScaleAspectFit;
    imageView.image = aImage;
    [self.view addSubview:imageView];
    
    CIImage* image = [CIImage imageWithCGImage:aImage.CGImage];
    
    NSDictionary  *opts = [NSDictionary dictionaryWithObject:CIDetectorAccuracyHigh
                                                      forKey:CIDetectorAccuracy];
    
    CIDetector* detector = [CIDetector detectorOfType:CIDetectorTypeFace
                                              context:nil
                                              options:opts];
    
    //得到面部数据
    NSArray* features = [detector featuresInImage:image];
    for (CIFaceFeature *f in features)
    {
        
        CGRect aRect = f.bounds;
        aRect.origin.y = imageView.bounds.size.height - aRect.size.height - aRect.origin.y;//self.bounds.size
//给