{"id":38256687,"url":"https://github.com/gooid/gocv","last_synced_at":"2026-01-17T01:32:08.410Z","repository":{"id":57487418,"uuid":"115080125","full_name":"gooid/gocv","owner":"gooid","description":"Go bindings for OpenCV 3.3+ (full functions, easy to 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opencv SDK中的jni库，仅仅需要运行库，而不需要java环境的支持。（这里用了一个简单的技巧来免除对java的依赖）\r\n\r\n比如在windos和android下对应的运行库：\r\n\r\nplatform  | runtime library  |\r\n---------|----------|\r\nwindows,amd64|opencv-3.3.1-vc14.exe/opencv/build/java/x64/opencv_java331.dll\r\nandroid|opencv-3.3.1-android-sdk.zip/sdk/native/libs/{arch}/libopencv_java3.so\r\n\r\n如在windows,amd64下只需把上面对应的opencv_java331.dll拷贝到环境变量PATH所包含的目录下，确定 go 和 gcc 都已准备好，然后\r\n```\r\ngo get github.com/gooid/gocv/opencv3\r\ncd github.com/gooid/gocv/opencv3/cmd/facedetect\r\ngo run facedetect.go ..\\testdata\\lena.jpg ..\\testdata\\haarcascade_frontalface_alt2.xml ..\\testdata\\haarcascade_eye_tree_eyeglasses.xml\r\n```\r\n\r\n\r\n##### facedetect.go\r\n```\r\nimport (\r\n\t...\r\n\t\"github.com/gooid/gocv/opencv3/core\"\r\n\t\"github.com/gooid/gocv/opencv3/imgcodecs\"\r\n\t\"github.com/gooid/gocv/opencv3/imgproc\"\r\n\t\"github.com/gooid/gocv/opencv3/objdetect\"\r\n) \r\n\r\n...\r\n    org := imgcodecs.Imread(\"lena.jpg\", imgcodecs.IMREAD_ANYCOLOR)\r\n    defer org.Release() \r\n    \r\n    gray := core.NewMat2()\r\n    imgproc.CvtColor2(org, gray, imgproc.COLOR_RGB2GRAY)\r\n    \r\n    cascade := objdetect.NewCascadeClassifier2(\"haarcascade_frontalface_alt2.xml\") \r\n\r\n    rv := core.NewMatOfRect()    \r\n    cascade.DetectMultiScale2(gray, rv)\r\n    // faces\r\n    for _, r := range rv.ToArray() {\r\n        fmt.Println(\"\\t\", r.X, r.Y, r.Width, r.Height) \r\n    }\r\n...\r\n\r\n```\r\n\r\n有例子在(sample):\r\n```\r\n    opencv3/cmd/facedetect\r\n    opencv3/cmd/inception\r\n```\r\n\r\n## 关于Converters的特别说明：\r\n在原始opencv-331.jar中Converters是在utils目录下的，现在把它移到了core中。并且对它的函数名进行了重命名，基本规则是：\r\n\r\njava | go | \r\n---------|----------|\r\n vector_Point_to_Mat | ConvertersVectorPoint | \r\n Mat_to_vector_Point | ConvertersToVectorPoint |\r\n\r\n还有就是ConvertersToVectorPoint对cols限制为1，但在使用中发现经常会得到rows为1但要用ConvertersToVector*转换的情况，所以顺手改了一下，现在兼容rows为1的情况，不再需要先把mat转90度了。\r\n\r\n## 已知问题\r\n**在windows下文件名和路径不能有非ASCII码（opencv的问题，用opencv-331.jar一样有问题）**\r\n\r\n**有几个函数没有实现（看了对应的opencv JNI函数就会知道原因了）：**\r\n* func (rcvr *TrainData) GetNames(names []*Mat)\r\n* func (rcvr *Net) Forward5(outputBlobs []*Mat, outBlobNames []*Mat)\r\n* func (rcvr *Net) GetFLOPS3(layerId int, netInputShapes []*Mat) (int64)\r\n* func (rcvr *Net) GetFLOPS4(netInputShapes []*Mat) (int64)\r\n* func (rcvr *Net) GetLayerNames() ([]*Mat) \r\n* func (rcvr *Net) GetLayerTypes(layersTypes []*Mat) \r\n* func (rcvr *Net) GetMemoryConsumption3(layerId int, netInputShapes []*Mat, weights []int64, blobs []int64) \r\n* func (rcvr *Net) SetInputsNames(inputBlobNames []*Mat)\r\n\r\n## 其它\r\n如果您想试试opencv的功能，欢迎您使用它。我也是想在android下跑opencv，但又不想用java。找了一圈，也没合适我用的，才决定自己动手。\r\n\r\n所需要的一些图片和资源可以在opencv的sdk中找到。\r\n\r\n## License\r\n\r\nMIT\r\n\r\n## Author\r\n\r\ngooid\r\n\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgooid%2Fgocv","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fgooid%2Fgocv","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fgooid%2Fgocv/lists"}