image processing - Java -OpenCV Error: Assertion failed while running FaceRecognition Program -

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• opencv 3.0.0 facedetect sample fails 6 answers

i new opencv. link got java sample program face detection . encountered problems installed opencv 3.0 version , code 2.4.6 version. anyway errors solved changed code as

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));          (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); 

but unfortunately there occuring exception while running. stacktrace below:

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 ] @ org.opencv.objdetect.cascadeclassifier.detectmultiscale_1(native method) @ org.opencv.objdetect.cascadeclassifier.detectmultiscale(cascadeclassifier.java:103) @ com.bq.opencv.facedetection.main(facedetection.java:31)

please help.

hi corrected tried giving absolute path , removing xml files , images classpath.

cascadeclassifier facedetector = new cascadeclassifier("c:/opencv/opencv/sources/data/haarcascades/haarcascade_frontalface_alt.xml"); 

instead of

cascadeclassifier facedetector = new cascadeclassifier(facedetection.class.getresource("/resources/xmls/haarcascade_frontalface_alt.xml").getpath()); 

and : mat image = imgcodecs.imread("c:/xyz/pqr/facetest.jpg");