代码：

RootViewController.h

#import 
     
      @interface RootViewController : UIViewController@end
     

 

RootViewController.m

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.            UIImage * image = [UIImage imageNamed:@"1.jpg"];    NSData * tempData;    if (UIImagePNGRepresentation(image)) {        tempData = UIImagePNGRepresentation(image);        NSLog(@"%@",tempData);    }    else{        tempData = UIImageJPEGRepresentation(image, 1);    }    CIImage * iImg = [CIImage imageWithData:tempData];    UIImage * tImg = [UIImage imageWithCIImage:iImg scale:1 orientation:UIImageOrientationRight];    NSLog(@"%@",UIImagePNGRepresentation(tImg));    UIImageView * imageView = [[UIImageView alloc]initWithFrame:CGRectMake(10, 200, 200, 80)];    imageView.image = tImg;    [self.view addSubview:imageView];    }