GPUImage项目下载地址:链接
GPUImage中的类
"GPUImageBrightnessFilter.h" //亮度
"GPUImageExposureFilter.h" //曝光
"GPUImageContrastFilter.h" //对比度
"GPUImageSaturationFilter.h" //饱和度
"GPUImageGammaFilter.h" //伽马线
"GPUImageColorInvertFilter.h" //反色
"GPUImageSepiaFilter.h" //褐色(怀旧)
"GPUImageLevelsFilter.h" //色阶
"GPUImageGrayscaleFilter.h" //灰度
"GPUImageHistogramFilter.h" //色彩直方图,显示在图片上
"GPUImageHistogramGenerator.h" //色彩直方图
"GPUImageRGBFilter.h" //RGB
"GPUImageToneCurveFilter.h" //色调曲线
"GPUImageMonochromeFilter.h" //单色
"GPUImageOpacityFilter.h" //不透明度
"GPUImageHighlightShadowFilter.h" //提亮阴影
"GPUImageFalseColorFilter.h" //色彩替换(替换亮部和暗部色彩)
"GPUImageHueFilter.h" //色度
"GPUImageChromaKeyFilter.h" //色度键
"GPUImageWhiteBalanceFilter.h" //白平横
"GPUImageAverageColor.h" //像素平均色值
"GPUImageSolidColorGenerator.h" //纯色
"GPUImageLuminosity.h" //亮度平均
"GPUImageAverageLuminanceThresholdFilter.h" //像素色值亮度平均,图像黑白(有类似漫画效果)
"GPUImageLookupFilter.h" //lookup 色彩调整
"GPUImageAmatorkaFilter.h" //Amatorka lookup
"GPUImageMissEtikateFilter.h" //MissEtikate lookup
"GPUImageSoftEleganceFilter.h" //SoftElegance lookup
图像处理 Handle Image
"GPUImageCrosshairGenerator.h" //十字
"GPUImageLineGenerator.h" //线条
"GPUImageTransformFilter.h" //形状变化
"GPUImageCropFilter.h" //剪裁
"GPUImageSharpenFilter.h" //锐化
"GPUImageUnsharpMaskFilter.h" //反遮罩锐化
"GPUImageFastBlurFilter.h" //模糊
"GPUImageGaussianBlurFilter.h" //高斯模糊
"GPUImageGaussianSelectiveBlurFilter.h" //高斯模糊,选择部分清晰
"GPUImageBoxBlurFilter.h" //盒状模糊
"GPUImageTiltShiftFilter.h" //条纹模糊,中间清晰,上下两端模糊
"GPUImageMedianFilter.h" //中间值,有种稍微模糊边缘的效果
"GPUImageBilateralFilter.h" //双边模糊
"GPUImageErosionFilter.h" //侵蚀边缘模糊,变黑白
"GPUImageRGBErosionFilter.h" //RGB侵蚀边缘模糊,有色彩
"GPUImageDilationFilter.h" //扩展边缘模糊,变黑白
"GPUImageRGBDilationFilter.h" //RGB扩展边缘模糊,有色彩
"GPUImageOpeningFilter.h" //黑白色调模糊
"GPUImageRGBOpeningFilter.h" //彩色模糊
"GPUImageClosingFilter.h" //黑白色调模糊,暗色会被提亮
"GPUImageRGBClosingFilter.h" //彩色模糊,暗色会被提亮
"GPUImageLanczosResamplingFilter.h" //Lanczos重取样,模糊效果
"GPUImageNonMaximumSuppressionFilter.h" //非最大抑制,只显示亮度最高的像素,其他为黑
"GPUImageThresholdedNonMaximumSuppressionFilter.h" //与上相比,像素丢失更多
"GPUImageSobelEdgeDetectionFilter.h" //Sobel边缘检测算法(白边,黑内容,有点漫画的反色效果)
"GPUImageCannyEdgeDetectionFilter.h" //Canny边缘检测算法(比上更强烈的黑白对比度)
"GPUImageThresholdEdgeDetectionFilter.h" //阈值边缘检测(效果与上差别不大)
"GPUImagePrewittEdgeDetectionFilter.h" //普瑞维特(Prewitt)边缘检测(效果与Sobel差不多,貌似更平滑)
"GPUImageXYDerivativeFilter.h" //XYDerivative边缘检测,画面以蓝色为主,绿色为边缘,带彩色
"GPUImageHarrisCornerDetectionFilter.h" //Harris角点检测,会有绿色小十字显示在图片角点处
"GPUImageNobleCornerDetectionFilter.h" //Noble角点检测,检测点更多
"GPUImageShiTomasiFeatureDetectionFilter.h" //ShiTomasi角点检测,与上差别不大
"GPUImageMotionDetector.h" //动作检测
"GPUImageHoughTransformLineDetector.h" //线条检测
"GPUImageParallelCoordinateLineTransformFilter.h" //平行线检测
"GPUImageLocalBinaryPatternFilter.h" //图像黑白化,并有大量噪点
"GPUImageLowPassFilter.h" //用于图像加亮
"GPUImageHighPassFilter.h" //图像低于某值时显示为黑
视觉效果 Visual Effect
"GPUImageSketchFilter.h" //素描
"GPUImageThresholdSketchFilter.h" //阀值素描,形成有噪点的素描
"GPUImageToonFilter.h" //卡通效果(黑色粗线描边)
"GPUImageSmoothToonFilter.h" //相比上面的效果更细腻,上面是粗旷的画风
"GPUImageKuwaharaFilter.h" //桑原(Kuwahara)滤波,水粉画的模糊效果;处理时间比较长,慎用
"GPUImageMosaicFilter.h" //黑白马赛克
"GPUImagePixellateFilter.h" //像素化
"GPUImagePolarPixellateFilter.h" //同心圆像素化
"GPUImageCrosshatchFilter.h" //交叉线阴影,形成黑白网状画面
"GPUImageColorPackingFilter.h" //色彩丢失,模糊(类似监控摄像效果)
"GPUImageVignetteFilter.h" //晕影,形成黑色圆形边缘,突出中间图像的效果
"GPUImageSwirlFilter.h" //漩涡,中间形成卷曲的画面
"GPUImageBulgeDistortionFilter.h" //凸起失真,鱼眼效果
"GPUImagePinchDistortionFilter.h" //收缩失真,凹面镜
"GPUImageStretchDistortionFilter.h" //伸展失真,哈哈镜
"GPUImageGlassSphereFilter.h" //水晶球效果
"GPUImageSphereRefractionFilter.h" //球形折射,图形倒立
"GPUImagePosterizeFilter.h" //色调分离,形成噪点效果
"GPUImageCGAColorspaceFilter.h" //CGA色彩滤镜,形成黑、浅蓝、紫色块的画面
"GPUImagePerlinNoiseFilter.h" //柏林噪点,花边噪点
"GPUImage3x3ConvolutionFilter.h" //3x3卷积,高亮大色块变黑,加亮边缘、线条等
"GPUImageEmbossFilter.h" //浮雕效果,带有点3d的感觉
"GPUImagePolkaDotFilter.h" //像素圆点花样
"GPUImageHalftoneFilter.h" //点染,图像黑白化,由黑点构成原图的大致图形
混合模式 Blend
"GPUImageMultiplyBlendFilter.h" //通常用于创建阴影和深度效果
"GPUImageNormalBlendFilter.h" //正常
"GPUImageAlphaBlendFilter.h" //透明混合,通常用于在背景上应用前景的透明度
"GPUImageDissolveBlendFilter.h" //溶解
"GPUImageOverlayBlendFilter.h" //叠加,通常用于创建阴影效果
"GPUImageDarkenBlendFilter.h" //加深混合,通常用于重叠类型
"GPUImageLightenBlendFilter.h" //减淡混合,通常用于重叠类型
"GPUImageSourceOverBlendFilter.h" //源混合
"GPUImageColorBurnBlendFilter.h" //色彩加深混合
"GPUImageColorDodgeBlendFilter.h" //色彩减淡混合
"GPUImageScreenBlendFilter.h" //屏幕包裹,通常用于创建亮点和镜头眩光
"GPUImageExclusionBlendFilter.h" //排除混合
"GPUImageDifferenceBlendFilter.h" //差异混合,通常用于创建更多变动的颜色
"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
"GPUImageHardLightBlendFilter.h" //强光混合,通常用于创建阴影效果
"GPUImageSoftLightBlendFilter.h" //柔光混合
"GPUImageChromaKeyBlendFilter.h" //色度键混合
"GPUImageMaskFilter.h" //遮罩混合
"GPUImageHazeFilter.h" //朦胧加暗
"GPUImageLuminanceThresholdFilter.h" //亮度阈
"GPUImageAdaptiveThresholdFilter.h" //自适应阈值
"GPUImageAddBlendFilter.h" //通常用于创建两个图像之间的动画变亮模糊效果
"GPUImageDivideBlendFilter.h" //通常用于创建两个图像之间的动画变暗模糊效果
实例
//边缘阴影处理
-(UIImage*)useGPUImageVignetterFilterWithImage:(UIImage*)inputImage{
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];
//返回处理之后的image
return newImage;
}
//模糊
-(UIImage*)useGPUImageGaussianBlurFilterWithImageView:(UIImage*) inputImage{
GPUImageGaussianBlurFilter *gaussianBlurFilter = [[GPUImageGaussianBlurFilter alloc] init];
gaussianBlurFilter.blurRadiusInPixels = 5;//模糊程度
[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];
//获取渲染后的图片
UIImage *newImage = [gaussianBlurFilter imageFromCurrentFramebuffer];
//加载出来
return newImage;
}
//部分模糊
-(UIImage*)useGPUImageGaussianSelectiveBlurFilterWithImageView:(UIImage*) inputImage{
// 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.excludeCircleRadius = 0.5;//半径(0~1)
gaussianBlurFilter.excludeCirclePoint = CGPointMake(1.0,1.0);//(0~1,0~1)
// gaussianBlurFilter.excludeBlurSize = 0.8;
[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];
//获取渲染后的图片
UIImage *newImage = [gaussianBlurFilter imageFromCurrentFramebuffer];
//加载出来
return newImage;
}
//怀旧
-(UIImage*)useGPUImageSepiaFilterWithImageView:(UIImage*) inputImage{
// GPUImageSepiaFilter(怀旧)
GPUImageSepiaFilter *gaussianBlurFilter = [[GPUImageSepiaFilter alloc] init];
[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];
// 获取渲染后的图片
UIImage *newImage = [gaussianBlurFilter imageFromCurrentFramebuffer];
//加载出来
return newImage;
}