iOS

#import <UIKit/UIKit.h>
#import <Accelerate/Accelerate.h>

@interface UIImage (TY_ImageEditP)
/**
 *  对图片进行模糊
 *
 *  @param image 要处理图片
 *  @param blur  模糊系数 (0.0-1.0)
 *
 *  @return 处理后的图片
 */
+ (UIImage *)blurryImage:(UIImage *)image withBlurLevel:(CGFloat)blur;

@end

 1 #import "UIImage+TY_ImageEditP.h"

@implementation UIImage (TY_ImageEditP)
+ (UIImage *)blurryImage:(UIImage *)image withBlurLevel:(CGFloat)blur {
    if (!image) {
        return nil;
    }
    if ((blur < 0.0f) || (blur > 1.0f)) {
        blur = 0.5f;
    }
    
    int boxSize = (int)(blur * 200);
    boxSize -= (boxSize % 2) + 1;
    
    CGImageRef img = image.CGImage;
    
    vImage_Buffer inBuffer, outBuffer;
    vImage_Error error;
    void *pixelBuffer;
    
    CGDataProviderRef inProvider = CGImageGetDataProvider(img);
    CFDataRef inBitmapData = CGDataProviderCopyData(inProvider);
    
    inBuffer.width = CGImageGetWidth(img);
    inBuffer.height = CGImageGetHeight(img);
    inBuffer.rowBytes = CGImageGetBytesPerRow(img);
    inBuffer.data = (void*)CFDataGetBytePtr(inBitmapData);
    
    pixelBuffer = malloc(CGImageGetBytesPerRow(img) * CGImageGetHeight(img));
    
    outBuffer.data = pixelBuffer;
    outBuffer.width = CGImageGetWidth(img);
    outBuffer.height = CGImageGetHeight(img);
    outBuffer.rowBytes = CGImageGetBytesPerRow(img);
    
    error = vImageBoxConvolve_ARGB8888(&inBuffer, &outBuffer, NULL,
                                       0, 0, boxSize, boxSize, NULL,
                                       kvImageEdgeExtend);
    
    
    if (error) {
        NSLog(@"error from convolution %ld", error);
    }
    
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    CGContextRef ctx = CGBitmapContextCreate(
                                             outBuffer.data,
                                             outBuffer.width,
                                             outBuffer.height,
                                             8,
                                             outBuffer.rowBytes,
                                             colorSpace,
                                             CGImageGetBitmapInfo(image.CGImage));
    
    CGImageRef imageRef = CGBitmapContextCreateImage (ctx);
    UIImage *returnImage = [UIImage imageWithCGImage:imageRef];
    
    //clean up
    CGContextRelease(ctx);
    CGColorSpaceRelease(colorSpace);
    
    free(pixelBuffer);
    CFRelease(inBitmapData);
    
    CGColorSpaceRelease(colorSpace);
    CGImageRelease(imageRef);
    
    return returnImage;
}

@end

例子~：

 __weak typeof(self) weakSelf = self;
                [self.myImageView sd_setImageWithURL:[NSURL URLWithString:[ZLModel checkImageUrlNsstring:myModel.address withHttp:TY_IMAGEURL]] placeholderImage:[UIImage imageNamed:consultDefault] completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {
                    //毛玻璃效果处理
                    UIImage *imageN = [UIImage blurryImage:image withBlurLevel:0.2];
                    weakSelf.imageN = imageN;
                    self.myImageView.image = self.imageN;

                }];