GPUImage图像处理库使用(一)

github地址: https://github.com/BradLarson/GPUImage.git
For example

边缘阴影

#if 1
    GPUImageVignetteFilter *disFilter = [[GPUImageVignetteFilter alloc] init];
        //设置要渲染的区域
    [disFilter forceProcessingAtSize:inputImage.size];
    [disFilter useNextFrameForImageCapture];
        //获取数据源
    GPUImagePicture *stillImageSource = [[GPUImagePicture alloc]initWithImage:inputImage];
        //添加上滤镜
    [stillImageSource addTarget:disFilter];
         //开始渲染
    [stillImageSource processImage];
        //获取渲染后的图片
    UIImage *newImage = [disFilter imageFromCurrentFramebuffer];
        //加载出来
    UIImageView *imageView = [[UIImageView alloc] initWithImage:newImage];
    imageView.frame = CGRectMake(50,50,200 ,300);
    [self.view addSubview:imageView];
#endif

GPUImage图像处理库使用(一)_第1张图片

模糊

#if 0
    GPUImageGaussianBlurFilter *gaussianBlurFilter = [[GPUImageGaussianBlurFilter alloc] init];
    [gaussianBlurFilter forceProcessingAtSize:CGSizeMake(200, 300)];
    [gaussianBlurFilter useNextFrameForImageCapture];
    //获取数据源
    GPUImagePicture *stillImageSource = [[GPUImagePicture alloc]initWithImage:inputImage];
    //添加上滤镜
    [stillImageSource addTarget:gaussianBlurFilter];
    //开始渲染
    [stillImageSource processImage];
    //获取渲染后的图片
    UIImage *newImage = [gaussianBlurFilter imageFromCurrentFramebuffer];
    //加载出来
    UIImageView *imageView = [[UIImageView alloc] initWithImage:newImage];
    imageView.frame = CGRectMake(50,50,200 ,300);
    [self.view addSubview:imageView];
#endif

GPUImage图像处理库使用(一)_第2张图片

部分模糊

#if 0
    // 部分清晰的高斯模糊
    GPUImageGaussianSelectiveBlurFilter *gaussianBlurFilter = [[GPUImageGaussianSelectiveBlurFilter alloc] init];
    gaussianBlurFilter.blurRadiusInPixels = 5; // 模糊的程度 默认:5
    [gaussianBlurFilter forceProcessingAtSize:inputImage.size];

    [gaussianBlurFilter useNextFrameForImageCapture];
    //获取数据源
    GPUImagePicture *stillImageSource = [[GPUImagePicture alloc]initWithImage:inputImage];
    //添加上滤镜
    [stillImageSource addTarget:gaussianBlurFilter];
    //开始渲染
    [stillImageSource processImage];
    gaussianBlurFilter.excludeCirclePoint = CGPointMake(150, 150);
// gaussianBlurFilter.excludeBlurSize = 300.0;
    gaussianBlurFilter.excludeCircleRadius = 10;
    //获取渲染后的图片
    UIImage *newImage = [gaussianBlurFilter imageFromCurrentFramebuffer];
    //加载出来
    UIImageView *imageView = [[UIImageView alloc] initWithImage:newImage];
    imageView.frame = CGRectMake(50,50,320 ,650);
    [self.view addSubview:imageView];
#endif

GPUImage图像处理库使用(一)_第3张图片

怀旧

#if 0
    // GPUImageSepiaFilter(怀旧)
    GPUImageSepiaFilter *gaussianBlurFilter = [[GPUImageSepiaFilter alloc] init];
    [gaussianBlurFilter forceProcessingAtSize:CGSizeMake(200, 300)];
    [gaussianBlurFilter useNextFrameForImageCapture];
    // 获取数据源
    GPUImagePicture *stillImageSource = [[GPUImagePicture alloc]initWithImage:inputImage];
    // 添加上滤镜
    [stillImageSource addTarget:gaussianBlurFilter];
    // 开始渲染
    [stillImageSource processImage];
    // 获取渲染后的图片
    UIImage *newImage = [gaussianBlurFilter imageFromCurrentFramebuffer];
    // 加载出来
    UIImageView *imageView = [[UIImageView alloc] initWithImage:newImage];
    imageView.frame = CGRectMake(50,50,320 ,650);
    [self.view addSubview:imageView];
#endif

GPUImage图像处理库使用(一)_第4张图片



  - #import "GPUImageBrightnessFilter.h" //亮度 #import "GPUImageExposureFilter.h" //曝光 #import "GPUImageContrastFilter.h" //对比度 #import "GPUImageSaturationFilter.h" //饱和度 #import "GPUImageGammaFilter.h" //伽马线 #import "GPUImageColorInvertFilter.h" //反色 #import "GPUImageSepiaFilter.h" //褐色(怀旧) #import "GPUImageLevelsFilter.h" //色阶 #import "GPUImageGrayscaleFilter.h" //灰度 #import "GPUImageHistogramFilter.h" //色彩直方图,显示在图片上 #import "GPUImageHistogramGenerator.h" //色彩直方图 #import "GPUImageRGBFilter.h" //RGB #import "GPUImageToneCurveFilter.h" //色调曲线 #import "GPUImageMonochromeFilter.h" //单色 #import "GPUImageOpacityFilter.h" //不透明度 #import "GPUImageHighlightShadowFilter.h" //提亮阴影 #import "GPUImageFalseColorFilter.h" //色彩替换(替换亮部和暗部色彩) #import "GPUImageHueFilter.h" //色度 #import "GPUImageChromaKeyFilter.h" //色度键 #import "GPUImageWhiteBalanceFilter.h" //白平横 #import "GPUImageAverageColor.h" //像素平均色值 #import "GPUImageSolidColorGenerator.h" //纯色 #import "GPUImageLuminosity.h" //亮度平均 #import "GPUImageAverageLuminanceThresholdFilter.h" //像素色值亮度平均,图像黑白(有类似漫画效果) #import "GPUImageLookupFilter.h" //lookup 色彩调整 #import "GPUImageAmatorkaFilter.h" //Amatorka lookup #import "GPUImageMissEtikateFilter.h" //MissEtikate lookup #import "GPUImageSoftEleganceFilter.h" //SoftElegance lookup #pragma mark - 图像处理 Handle Image #import "GPUImageCrosshairGenerator.h" //十字 #import "GPUImageLineGenerator.h" //线条 #import "GPUImageTransformFilter.h" //形状变化 #import "GPUImageCropFilter.h" //剪裁 #import "GPUImageSharpenFilter.h" //锐化 #import "GPUImageUnsharpMaskFilter.h" //反遮罩锐化 #import "GPUImageFastBlurFilter.h" //模糊 #import "GPUImageGaussianBlurFilter.h" //高斯模糊 #import "GPUImageGaussianSelectiveBlurFilter.h" //高斯模糊,选择部分清晰 #import "GPUImageBoxBlurFilter.h" //盒状模糊 #import "GPUImageTiltShiftFilter.h" //条纹模糊,中间清晰,上下两端模糊 #import "GPUImageMedianFilter.h" //中间值,有种稍微模糊边缘的效果 #import "GPUImageBilateralFilter.h" //双边模糊 #import "GPUImageErosionFilter.h" //侵蚀边缘模糊,变黑白 #import "GPUImageRGBErosionFilter.h" //RGB侵蚀边缘模糊,有色彩 #import "GPUImageDilationFilter.h" //扩展边缘模糊,变黑白 #import "GPUImageRGBDilationFilter.h" //RGB扩展边缘模糊,有色彩 #import "GPUImageOpeningFilter.h" //黑白色调模糊 #import "GPUImageRGBOpeningFilter.h" //彩色模糊 #import "GPUImageClosingFilter.h" //黑白色调模糊,暗色会被提亮 #import "GPUImageRGBClosingFilter.h" //彩色模糊,暗色会被提亮 #import "GPUImageLanczosResamplingFilter.h" //Lanczos重取样,模糊效果 #import "GPUImageNonMaximumSuppressionFilter.h" //非最大抑制,只显示亮度最高的像素,其他为黑 #import "GPUImageThresholdedNonMaximumSuppressionFilter.h" //与上相比,像素丢失更多 #import "GPUImageSobelEdgeDetectionFilter.h" //Sobel边缘检测算法(白边,黑内容,有点漫画的反色效果) #import "GPUImageCannyEdgeDetectionFilter.h" //Canny边缘检测算法(比上更强烈的黑白对比度) #import "GPUImageThresholdEdgeDetectionFilter.h" //阈值边缘检测(效果与上差别不大) #import "GPUImagePrewittEdgeDetectionFilter.h" //普瑞维特(Prewitt)边缘检测(效果与Sobel差不多,貌似更平滑) #import "GPUImageXYDerivativeFilter.h" //XYDerivative边缘检测,画面以蓝色为主,绿色为边缘,带彩色 #import "GPUImageHarrisCornerDetectionFilter.h" //Harris角点检测,会有绿色小十字显示在图片角点处 #import "GPUImageNobleCornerDetectionFilter.h" //Noble角点检测,检测点更多 #import "GPUImageShiTomasiFeatureDetectionFilter.h" //ShiTomasi角点检测,与上差别不大 #import "GPUImageMotionDetector.h" //动作检测 #import "GPUImageHoughTransformLineDetector.h" //线条检测 #import "GPUImageParallelCoordinateLineTransformFilter.h" //平行线检测 #import "GPUImageLocalBinaryPatternFilter.h" //图像黑白化,并有大量噪点 #import "GPUImageLowPassFilter.h" //用于图像加亮 #import "GPUImageHighPassFilter.h" //图像低于某值时显示为黑 #pragma mark - 视觉效果 Visual Effect #import "GPUImageSketchFilter.h" //素描 #import "GPUImageThresholdSketchFilter.h" //阀值素描,形成有噪点的素描 #import "GPUImageToonFilter.h" //卡通效果(黑色粗线描边) #import "GPUImageSmoothToonFilter.h" //相比上面的效果更细腻,上面是粗旷的画风 #import "GPUImageKuwaharaFilter.h" //桑原(Kuwahara)滤波,水粉画的模糊效果;处理时间比较长,慎用 #import "GPUImageMosaicFilter.h" //黑白马赛克 #import "GPUImagePixellateFilter.h" //像素化 #import "GPUImagePolarPixellateFilter.h" //同心圆像素化 #import "GPUImageCrosshatchFilter.h" //交叉线阴影,形成黑白网状画面 #import "GPUImageColorPackingFilter.h" //色彩丢失,模糊(类似监控摄像效果) #import "GPUImageVignetteFilter.h" //晕影,形成黑色圆形边缘,突出中间图像的效果 #import "GPUImageSwirlFilter.h" //漩涡,中间形成卷曲的画面 #import "GPUImageBulgeDistortionFilter.h" //凸起失真,鱼眼效果 #import "GPUImagePinchDistortionFilter.h" //收缩失真,凹面镜 #import "GPUImageStretchDistortionFilter.h" //伸展失真,哈哈镜 #import "GPUImageGlassSphereFilter.h" //水晶球效果 #import "GPUImageSphereRefractionFilter.h" //球形折射,图形倒立 #import "GPUImagePosterizeFilter.h" //色调分离,形成噪点效果 #import "GPUImageCGAColorspaceFilter.h" //CGA色彩滤镜,形成黑、浅蓝、紫色块的画面 #import "GPUImagePerlinNoiseFilter.h" //柏林噪点,花边噪点 #import "GPUImage3x3ConvolutionFilter.h" //3x3卷积,高亮大色块变黑,加亮边缘、线条等 #import "GPUImageEmbossFilter.h" //浮雕效果,带有点3d的感觉 #import "GPUImagePolkaDotFilter.h" //像素圆点花样 #import "GPUImageHalftoneFilter.h" //点染,图像黑白化,由黑点构成原图的大致图形 #pragma mark - 混合模式 Blend #import "GPUImageMultiplyBlendFilter.h" //通常用于创建阴影和深度效果 #import "GPUImageNormalBlendFilter.h" //正常 #import "GPUImageAlphaBlendFilter.h" //透明混合,通常用于在背景上应用前景的透明度 #import "GPUImageDissolveBlendFilter.h" //溶解 #import "GPUImageOverlayBlendFilter.h" //叠加,通常用于创建阴影效果 #import "GPUImageDarkenBlendFilter.h" //加深混合,通常用于重叠类型 #import "GPUImageLightenBlendFilter.h" //减淡混合,通常用于重叠类型 #import "GPUImageSourceOverBlendFilter.h" //源混合 #import "GPUImageColorBurnBlendFilter.h" //色彩加深混合 #import "GPUImageColorDodgeBlendFilter.h" //色彩减淡混合 #import "GPUImageScreenBlendFilter.h" //屏幕包裹,通常用于创建亮点和镜头眩光 #import "GPUImageExclusionBlendFilter.h" //排除混合 #import "GPUImageDifferenceBlendFilter.h" //差异混合,通常用于创建更多变动的颜色 #import "GPUImageSubtractBlendFilter.h" //差值混合,通常用于创建两个图像之间的动画变暗模糊效果 #import "GPUImageHardLightBlendFilter.h" //强光混合,通常用于创建阴影效果 #import "GPUImageSoftLightBlendFilter.h" //柔光混合 #import "GPUImageChromaKeyBlendFilter.h" //色度键混合 #import "GPUImageMaskFilter.h" //遮罩混合 #import "GPUImageHazeFilter.h" //朦胧加暗 #import "GPUImageLuminanceThresholdFilter.h" //亮度阈 #import "GPUImageAdaptiveThresholdFilter.h" //自适应阈值 #import "GPUImageAddBlendFilter.h" //通常用于创建两个图像之间的动画变亮模糊效果 #import "GPUImageDivideBlendFilter.h" //通常用于创建两个图像之间的动画变暗模糊效果 

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