Java -OpenCV Error: Assertion failed while running FaceRecognition Program

Question

我对 OpenCV 非常陌生。从这个 link 我得到了 JAVA 人脸检测示例程序。我在安装 opencv 3.0 版本时遇到了一些问题，该代码适用于 2.4.6 版本。无论如何，当我将代码更改为

时，错误已解决

System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
        System.out.println("\nRunning FaceDetector");


        CascadeClassifier faceDetector = new CascadeClassifier(FaceDetection.class.getResource("/resources/xmls/haarcascade_frontalface_alt.xml").getPath());
        Mat image = Imgcodecs.imread(FaceDetection.class.getResource("/resources/testimages/FaceTest.jpg").getPath());

        MatOfRect faceDetections = new MatOfRect();
        faceDetector.detectMultiScale(image, faceDetections);

        System.out.println(String.format("Detected %s faces", faceDetections.toArray().length));

        for (Rect rect : faceDetections.toArray()) {
            Imgproc.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height),
                    new Scalar(0, 255, 0));


        }

        String filename = "/resources/testimages/FaceRecognised.jpg";
        System.out.println(String.format("Writing %s", filename));
        Imgcodecs.imwrite(filename, image);

但不幸的是运行时出现异常。堆栈跟踪如下：

Running FaceDetector OpenCV Error: Assertion failed (!empty()) in cv::CascadeClassifier::detectMultiScale, file C:\builds\master_PackSlaveAddon-win64-vc12-static\opencv\modules\objdetect\src\cascadedetect.cpp, line 1595 Exception in thread "main" CvException [org.opencv.core.CvException: cv::Exception: C:\builds\master_PackSlaveAddon-win64-vc12-static\opencv\modules\objdetect\src\cascadedetect.cpp:1595: error: (-215) !empty() in function cv::CascadeClassifier::detectMultiScale ] at org.opencv.objdetect.CascadeClassifier.detectMultiScale_1(Native Method) at org.opencv.objdetect.CascadeClassifier.detectMultiScale(CascadeClassifier.java:103) at com.bq.opencv.FaceDetection.main(FaceDetection.java:31)

请帮忙。

Answer 1

您好，这已更正，因为尝试提供绝对路径并从类路径中删除 xml 文件和图像。

CascadeClassifier faceDetector = new CascadeClassifier("C:/OpenCV/opencv/sources/data/haarcascades/haarcascade_frontalface_alt.xml");

而不是

CascadeClassifier faceDetector = new CascadeClassifier(FaceDetection.class.getResource("/resources/xmls/haarcascade_frontalface_alt.xml").getPath());

还有：垫子图像 = Imgcodecs.imread("C:/XYZ/PQR/FaceTest.jpg");

Java -OpenCV Error: Assertion failed while running FaceRecognition Program

Java -OpenCV Error: Assertion failed while running FaceRecognition Program

java

image-processing

opencv3.0