ScreenshotAsBlurredImages.m

-(UIImage *)convertViewToImage
{
    UIGraphicsBeginImageContext(self.view.bounds.size);
    [self.view drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return image;
}


- (void)doIt
{
    UIImage* imageOfUnderlyingView = [self convertViewToImage];
      imageOfUnderlyingView = [imageOfUnderlyingView applyBlurWithRadius:5
                                                               tintColor:[UIColor colorWithWhite:1.0 alpha:0.2]
                                                  saturationDeltaFactor:1.3
                                                              maskImage:nil];
}