Question

在我的应用程序中我将实现面部识别登录...所以我使用openCV库进行识别面...请帮我用示例代码和教程来做这个....

提前致谢

Answer 1

嗯，我的同事和我去年对人脸识别进行了一些调查，这些是我们使用集成识别工具与JavaCV（OpenCV的Java绑定）的一些考虑因素：

请查看以下教程

Face Detection on Andriod Part-I（Wayback link）
Face Detection on Andriod Part-II（Wayback link）

希望有所帮助：）

Answer 2

您可以使用NDK来使用C / C ++ OpenCV API

docs
beginner tutorial


void DetectMyFace ()
{
    // image structure in opencv
    IplImage *inImg = 0;
    // face detector classifer 
    CvHaarClassifierCascade *clCascade = 0;
    CvMemStorage *mStorage = 0;
    CvSeq *faceRectSeq;

    inImg = cvLoadImage("2.jpg");

    mStorage = cvCreateMemStorage(0);
    clCascade = (CvHaarClassifierCascade *)cvLoad("haarcascade_frontalface_default.xml", 0, 0, 0);

    if ( !inImg || !mStorage || !clCascade ) 
    {
        printf("Initilization error : %s" , (!inImg)? "cant load image" : (!clCascade)? 
            "cant load haar cascade" : 
            "unable to locate memory storage");

        return;
    }

    faceRectSeq = cvHaarDetectObjects(inImg,clCascade,mStorage,
        1.2,
        3,
        CV_HAAR_DO_CANNY_PRUNING,
        cvSize(25,25));


    const char *winName = "Display Face";
    cvNamedWindow(winName,CV_WINDOW_AUTOSIZE);  

    for ( int i = 0; i < (faceRectSeq ? faceRectSeq -> total:0); i++ )
    {

        CvRect *r = (CvRect*)cvGetSeqElem(faceRectSeq,i);
        CvPoint p1 = { r->x, r->y };
        CvPoint p2 = { r->x + r->width, r->y + r->height };

        cvRectangle(inImg,p1,p2,CV_RGB(0,255,0),1,4,0);     
    }

    cvShowImage(winName, inImg);
    cvWaitKey(0);   

    cvDestroyWindow(winName);

    // release the variables 
    cvReleaseImage(&inImg);
    if(clCascade) cvReleaseHaarClassifierCascade(&clCascade);
    if(mStorage)  cvReleaseMemStorage(&mStorage);
}

Answer 3

我已经使用OpenCV制作了面部识别的Android应用程序。你可以看一下：https://github.com/yaylas/AndroidFaceRecognizer

使用openCV进行Android-面部识别？

3 个答案: