图片处理 模糊效果 

 1 // 模糊效果：
 2 
 3 //        CIContext *context = [CIContext contextWithOptions:nil];
 4 //        CIImage *inputImage = [[CIImage alloc] initWithImage:[UIImage imageNamed:@"IMG_7530.JPG"]];
 5 //        // create gaussian blur filter
 6 //        CIFilter *filter = [CIFilter filterWithName:@"CIGaussianBlur"];
 7 //        [filter setValue:inputImage forKey:kCIInputImageKey];
 8 //        [filter setValue:[NSNumber numberWithFloat:10.0] forKey:@"inputRadius"];
 9 //        // blur image
10 //        CIImage *result = [filter valueForKey:kCIOutputImageKey];
11 //        CGImageRef cgImage = [context createCGImage:result fromRect:[result extent]];
12 //        UIImage *image = [UIImage imageWithCGImage:cgImage];
13 //        CGImageRelease(cgImage);
14 ////        self.mainImageView.image = image;

 

posted @ 2014-10-06 16:07  超级马力  阅读(167)  评论(0)  编辑  收藏  举报