OpenCV Crash when processing in paralelle

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I can't read your tiff... anyway what do you mean for parallel calls ? threads, parallel for, ... please provide your code simplified

OpenCV works very well in parallel processing, except with anything related to GUI management ... are you calling "cv::imshow" and "cv::waitKey" in multiple threads ? If so, you should refrain to use such functions in only one thread.

private void validateFace(Mat matImage) throws URISyntaxException, WrongFaceException, IOException { int faces = openCvService.detectFace(matImage); if(faces != 1){ throw new WrongFaceException(); }

public int detectFace(Mat matImage) throws URISyntaxException, WrongFaceException, IOException { URL urlCascadeFace = OpenCvService.class.getResource(DETECT_FACE_XML); CascadeClassifier visageDetector = new CascadeClassifier(Paths.get(urlCascadeFace.toURI()).toFile().getPath()); MatOfRect faceDetections = new MatOfRect(); Mat matrice = matImage.clone(); //Detection du visage visageDetector.detectMultiScale(matrice, faceDetections); if (faceDetections.toArray().length > 0) { return faceDetections.toArray().length; } else { throw new WrongFaceException(); } }

Parallel calls: simultaneous calls in in perfoormance test

I use OpenCV in a java program

Load library System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

//Conversion image en BufferedImage InputStream inputStreamImage = new ByteArrayInputStream(bytesImageResize); BufferedImage bImageFromConvert = ImageIO.read(inputStreamImage);

        Mat matImage = retourneByteToMat(bytesImageResize);
        validateFace(matImage);

did you mean parallel processes (many execution of your executable) ? please edit your question explain it, describe the context providing us yhe error messages and use code formatting.