圖像虛擬化處理(圖片背景虛擬化)

    CIContext *context = [CIContext contextWithOptions:nil];
    CIImage *inputImage = [[CIImage alloc] initWithImage:image];
    CIFilter *filter = [CIFilter filterWithName:@"CIGaussianBlur"];
    [filter setValue:inputImage forKey:kCIInputImageKey];
    [filter setValue:[NSNumber numberWithFloat:10.0] forKey:@"inputRadius"];
    CIImage *result=[filter outputImage];
    CGImageRef cgImage = [context createCGImage:result fromRect:[inputImage extent]];
    self.bgImageView.image = [UIImage imageWithCGImage:cgImage];;