Example usage for org.opencv.core Mat elemSize

List of usage examples for org.opencv.core Mat elemSize

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Introduction

In this page you can find the example usage for org.opencv.core Mat elemSize.

Prototype

public long elemSize()

Source Link

Usage

From source file:com.minio.io.alice.MatVideoWriter.java

License:Open Source License

private byte[] captureRawBytes(Mat mat) {
    int length = (int) (mat.total() * mat.elemSize());
    matByteArray = new byte[length];
    mat.get(0, 0, matByteArray);/*from  ww  w.j a v a  2 s.  co  m*/
    return matByteArray;
}

From source file:com.orange.documentare.core.image.opencv.OpenCvImage.java

License:Open Source License

private static long matBytesCount(Mat mat) {
    long pixelBytesCount = mat.elemSize();
    return pixelBytesCount * mat.total();
}

From source file:com.ttolley.pongbot.controller.CvPanel.java

/**
 * Converts/writes a Mat into a BufferedImage.
 *
 * @param matrix Mat of type CV_8UC3 or CV_8UC1
 * @return BufferedImage of type TYPE_3BYTE_BGR or TYPE_BYTE_GRAY
 */// w ww.ja va2 s  .  c o  m
public BufferedImage matToBufferedImage(Mat matrix) {
    int cols = matrix.cols();
    int rows = matrix.rows();
    int elemSize = (int) matrix.elemSize();
    byte[] data = new byte[cols * rows * elemSize];
    int type;
    matrix.get(0, 0, data);
    switch (matrix.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;
    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;
        // bgr to rgb  
        byte b;
        for (int i = 0; i < data.length; i = i + 3) {
            b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;
    default:
        return null;
    }
    BufferedImage image2 = new BufferedImage(cols, rows, type);
    image2.getRaster().setDataElements(0, 0, cols, rows, data);
    return image2;
}

From source file:com.untref.gui.Editar.java

public static BufferedImage matToBufferedImage(Mat matrix) {
    BufferedImage bimg = new BufferedImage(1, 1, 1);
    if (matrix != null) {
        int cols = matrix.cols();
        int rows = matrix.rows();
        int elemSize = (int) matrix.elemSize();
        byte[] data = new byte[cols * rows * elemSize];
        int type;
        matrix.get(0, 0, data);//from   w  ww  . j ava2  s .c o  m
        switch (matrix.channels()) {
        case 1:
            type = BufferedImage.TYPE_BYTE_GRAY;
            break;
        case 3:
            type = BufferedImage.TYPE_3BYTE_BGR;
            // bgr to rgb  
            byte b;
            for (int i = 0; i < data.length; i = i + 3) {
                b = data[i];
                data[i] = data[i + 2];
                data[i + 2] = b;
            }
            break;
        default:
            return null;
        }

        // Reuse existing BufferedImage if possible
        if (bimg == null || bimg.getWidth() != cols || bimg.getHeight() != rows || bimg.getType() != type) {
            bimg = new BufferedImage(cols, rows, type);
        }
        bimg.getRaster().setDataElements(0, 0, cols, rows, data);
    } else { // mat was null
        bimg = null;
    }
    return bimg;
}

From source file:digitalassistant.Panel.java

/**
 * Converts/writes a Mat into a BufferedImage.
 *
 * @param matrix Mat of type CV_8UC3 or CV_8UC1
 * @return BufferedImage of type TYPE_3BYTE_BGR or TYPE_BYTE_GRAY
 *//*from w w w .  j  a  va 2 s.  c  o m*/
public BufferedImage matToBufferedImage(Mat matrix) {
    int cols = matrix.cols();
    int rows = matrix.rows();
    int elemSize = (int) matrix.elemSize();
    byte[] data = new byte[cols * rows * elemSize];
    int type;
    matrix.get(0, 0, data);
    switch (matrix.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;
    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;
        // bgr to rgb  
        byte b;
        for (int i = 0; i < data.length; i = i + 3) {
            b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;
    default:
        return null;
    }
    BufferedImage image = new BufferedImage(cols, rows, type);
    image.getRaster().setDataElements(0, 0, cols, rows, data);
    return image;
}

From source file:digitalassistant.Panel.java

public BufferedImage matToBufferedImage(Mat matrix) {
    int cols = matrix.cols();
    int rows = matrix.rows();
    int elemSize = (int) matrix.elemSize();
    byte[] data = new byte[cols * rows * elemSize];
    int type;//  w w w .  ja v a  2  s  .  c  om
    matrix.get(0, 0, data);
    switch (matrix.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;
    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;
        // bgr to rgb  
        byte b;
        for (int i = 0; i < data.length; i = i + 3) {
            b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;
    default:
        return null;
    }
    BufferedImage image = new BufferedImage(cols, rows, type);
    image.getRaster().setDataElements(0, 0, cols, rows, data);
    return image;
}

From source file:fr.olympicinsa.riocognized.facedetector.tools.ImageConvertor.java

/**
 * Converts/writes a Mat into a BufferedImage.
 *
 * @param matrix Mat of type CV_8UC3 or CV_8UC1
 * @return BufferedImage of type TYPE_3BYTE_BGR or TYPE_BYTE_GRAY
 *///from ww w  . ja v a 2 s  .c o  m
public static BufferedImage matToBufferedImage(Mat matrix) {
    log.debug("****** MatToBuffered Image **********");
    log.debug("input : " + matrix.toString());
    int cols = matrix.cols();
    int rows = matrix.rows();
    int elemSize = (int) matrix.elemSize();
    byte[] data = new byte[cols * rows * elemSize];
    int type;

    matrix.get(0, 0, data);

    switch (matrix.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;

    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;

        // bgr to rgb
        byte b;
        for (int i = 0; i < data.length; i = i + 3) {
            b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;

    default:
        return null;
    }

    BufferedImage image = new BufferedImage(cols, rows, type);
    image.getRaster().setDataElements(0, 0, cols, rows, data);
    log.debug("type: " + type);
    log.debug("output:" + image.toString());
    log.debug("***********************************");
    return image;
}

From source file:houghtransform.Capture.java

private static BufferedImage convertMatToBufferedImage(Mat mat) {
    byte[] data = new byte[mat.width() * mat.height() * (int) mat.elemSize()];
    int type;/*w w  w .  j a va  2  s  . c om*/
    mat.get(0, 0, data);

    switch (mat.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;
    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;
        // bgr to rgb    
        byte b;
        for (int i = 0; i < data.length; i = i + 3) {
            b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;
    default:
        throw new IllegalStateException("Unsupported number of channels");
    }

    BufferedImage out = new BufferedImage(mat.width(), mat.height(), type);

    out.getRaster().setDataElements(0, 0, mat.width(), mat.height(), data);

    return out;
}

From source file:interactivespaces.service.image.vision.opencv.MatUtils.java

License:Apache License

/**
 * Converts a {@link Mat} into a {@link BufferedImage}.
 *
 * @param matrix/*from  w w  w  .  j  a v a 2  s .  c o  m*/
 *          Mat of type CV_8UC3 or CV_8UC1
 *
 * @return BufferedImage of type TYPE_3BYTE_BGR or TYPE_BYTE_GRAY
 *
 * @throws SimpleInteractiveSpacesException
 *           the OpenCV Mat type is not supported
 */
public static BufferedImage matToBufferedImage(Mat matrix) throws SimpleInteractiveSpacesException {
    int cols = matrix.cols();
    int rows = matrix.rows();
    int elemSize = (int) matrix.elemSize();
    byte[] data = new byte[cols * rows * elemSize];
    int type;
    matrix.get(0, 0, data);
    switch (matrix.channels()) {
    case 1:
        type = BufferedImage.TYPE_BYTE_GRAY;
        break;
    case 3:
        type = BufferedImage.TYPE_3BYTE_BGR;
        for (int i = 0; i < data.length; i = i + 3) {
            byte b = data[i];
            data[i] = data[i + 2];
            data[i + 2] = b;
        }
        break;
    default:
        throw new SimpleInteractiveSpacesException("The OpenCV Mat type is not supported");
    }

    BufferedImage image = new BufferedImage(cols, rows, type);
    image.getRaster().setDataElements(0, 0, cols, rows, data);

    return image;
}

From source file:io.github.jakejmattson.facialrecognition.ImageFrame.java

License:Open Source License

/**
 * Convert an OpenCV Mat to a Java BufferedImage.
 *
 * @param matrix/*from www .jav a  2 s. c  o  m*/
 *       OpenCV Mat
 *
 * @return BufferedImage
 */
private static BufferedImage convertMatToImage(Mat matrix) {
    int width = matrix.width();
    int height = matrix.height();
    int type = matrix.channels() != 1 ? BufferedImage.TYPE_3BYTE_BGR : BufferedImage.TYPE_BYTE_GRAY;

    if (type == BufferedImage.TYPE_3BYTE_BGR)
        Imgproc.cvtColor(matrix, matrix, Imgproc.COLOR_BGR2RGB);

    byte[] data = new byte[width * height * (int) matrix.elemSize()];
    matrix.get(0, 0, data);

    BufferedImage out = new BufferedImage(width, height, type);
    out.getRaster().setDataElements(0, 0, width, height, data);

    return out;
}