iOS 处理图片 高斯模糊 image图片 blur模糊度

#pragma mark - 高斯模糊 image图片 blur模糊度

```

- (UIImage *)blurryImage:(UIImage *)image withBlurLevel:(CGFloat)blur

{

___start_log___

CIImage *inputImage = [CIImage imageWithCGImage:image.CGImage];

CIFilter *filter = [CIFilter filterWithName:@"CIGaussianBlur"

keysAndValues:kCIInputImageKey, inputImage,

@"inputRadius", @(blur), nil];

CIImage *outputImage = filter.outputImage;

CIContext *context = [CIContext contextWithOptions:nil];

CGImageRef outImage = [context createCGImage:outputImage fromRect:[inputImage extent]];

return [UIImage imageWithCGImage:outImage];

}

```

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