Blurring an image in iOS

Image 1 like this can be blurred to the one seen on the right image 2

]

Below is the code to do this.

self.imageView.image = [UIImage imageNamed:@"register_page.jpeg"];

    

    // create effect

    UIBlurEffect *blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];

    

    // add effect to an effect view

    UIVisualEffectView *effectView = [[UIVisualEffectView alloc]initWithEffect:blur];

    effectView.frame = self.view.frame;

    

    // add the effect view to the image view

    [self.imageView addSubview:effectView];

  

References:
http://stackoverflow.com/questions/17036655/ios-7-style-blur-view