Example usage for org.opencv.core Mat cols

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

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Introduction

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

Prototype

public int cols()

Source Link

Usage

From source file:spring2017ip.ConvolutionDemo.java

public Mat combineGxGy(Mat gx, Mat gy) {
    Mat outputImage = new Mat(gx.rows(), gx.cols(), gx.type());
    for (int r = 0; r < gx.height(); r++)
        for (int c = 0; c < gx.width(); c++) {
            double x[] = gx.get(r, c);
            double y[] = gy.get(r, c);
            double m = Math.sqrt(x[0] * x[0] + y[0] * y[0]);
            outputImage.put(r, c, m);/* w  w  w .j a va  2 s  .c o m*/
        }
    return outputImage;
}

From source file:src.model.filters.CannyFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________CANNY_______________**");

    try {//from w ww .  ja  v  a  2  s.co m

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________

        Mat source = Imgcodecs.imread(savePath);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());
        Mat det = new Mat(source.rows(), source.cols(), source.type());

        Imgproc.cvtColor(source, destination, Imgproc.COLOR_BGR2GRAY);
        Imgproc.blur(destination, det, new Size(3, 3));
        Imgproc.Canny(det, det, 5, 15, 3, false);
        Mat dest = new Mat();
        Core.add(dest, Scalar.all(0), dest);
        source.copyTo(dest, det);

        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_CA_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_CA_temp.jpg";
        Imgcodecs.imwrite(output, dest);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.DilationFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________DILATION_______________**");

    try {/*  ww w . j a  va2s  .com*/
        String imgInput = request.getParameter("name").toString();
        System.out.println("imgIn   put " + imgInput);
        String savePath = savePath(request);
        //____________________________________
        Mat source = Imgcodecs.imread(savePath, Imgcodecs.CV_LOAD_IMAGE_COLOR);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());
        destination = source;
        int dilation_size = 5;
        Mat element = Imgproc.getStructuringElement(Imgproc.MORPH_RECT,
                new Size(2 * dilation_size + 1, 2 * dilation_size + 1));
        Imgproc.dilate(source, destination, element);

        //            src.model.ApplyFilter.deleteTemps(output);
        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_DIL_temp.jpg";
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_DIL_temp.jpg";
        Imgcodecs.imwrite(output, destination);
        //____________________________________

        System.out.println("output: " + output);
        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.DotsFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________DOTS_______________**");

    try {/*from  w  ww . j  a  v a2  s. c o  m*/

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________
        int elementSize = 2;
        int bsize = 10;
        Mat source = Imgcodecs.imread(savePath);

        Mat dst = zeros(source.size(), CV_8UC3);
        Mat cir = zeros(source.size(), CV_8UC1);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());
        Mat element = Imgproc.getStructuringElement(Imgproc.CV_SHAPE_RECT,
                new Size(elementSize * 3 + 1, elementSize * 3 + 1), new Point(elementSize, elementSize));

        for (int i = 0; i < source.rows(); i += bsize) {
            for (int j = 0; j < source.cols(); j += bsize) {

                circle(cir, new Point(j + bsize / (double) 2, i + bsize / (double) 2), bsize / 2 - 1,
                        new Scalar(255, 255, 255), -1, -1, Core.LINE_AA);

            }
        }

        Imgproc.morphologyEx(source, dst, Imgproc.MORPH_CLOSE, element);

        Mat cir_32f = new Mat(source.rows(), source.cols(), CV_32F);
        cir.convertTo(cir_32f, CV_32F);
        normalize(cir_32f, cir_32f, 0, 1, NORM_MINMAX);

        Mat dst_32f = new Mat(source.rows(), source.cols(), CV_32F);
        dst.convertTo(dst_32f, CV_32F);

        Vector<Mat> channels = new Vector();
        split(dst_32f, channels);
        System.out.println(channels.size());
        for (int i = 0; i < channels.size(); ++i) {
            channels.set(i, channels.get(i).mul(cir_32f));
        }
        merge(channels, dst_32f);
        dst_32f.convertTo(dst, CV_8U);

        // Core.gemm(source, source, bsize, source, bsize, dst);
        // Core.gemm(cir, destination, 1, new Mat(), 0,dst , 0);
        //            Imgcodecs.imwrite("images\\outddput.jpg", dst);
        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_DOTS_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_DOTS_temp.jpg";
        Imgcodecs.imwrite(output, dst);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.ErosionFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________EROSION_______________**");

    try {//from  www.  jav a 2 s  .  co  m

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________
        Mat source = Imgcodecs.imread(savePath, Imgcodecs.CV_LOAD_IMAGE_COLOR);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());

        destination = source;

        int erosion_size = 5;
        int dilation_size = 5;

        Mat element = Imgproc.getStructuringElement(Imgproc.MORPH_RECT,
                new Size(2 * erosion_size + 1, 2 * erosion_size + 1));
        Imgproc.erode(source, destination, element);

        //            String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_ER_temp.jpg";
        //            src.model.ApplyFilter.renameTemps(request);
        //            src.model.ApplyFilter.deleteTemps(output);
        //            String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_ER_temp.jpg";
        //            Imgcodecs.imwrite(output, destination);
        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_ER_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_ER_temp.jpg";
        Imgcodecs.imwrite(output, destination);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.GaussianFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________GAUSSIAN_______________**");

    try {/*from  w ww .j a  v a2s  .  c  o m*/

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________

        Mat source = Imgcodecs.imread(savePath, Imgcodecs.CV_LOAD_IMAGE_COLOR);

        Mat destination = new Mat(source.rows(), source.cols(), source.type());
        Imgproc.GaussianBlur(source, destination, new Size(35, 35), 0);

        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_GA_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_GA_temp.jpg";
        Imgcodecs.imwrite(output, destination);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.GrayscaleFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________GRAYSCALE_______________**");

    try {/*from   w  w  w  .  java  2  s. c  o  m*/

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________

        Mat source = Imgcodecs.imread(savePath);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());

        Imgproc.cvtColor(source, destination, Imgproc.COLOR_BGR2GRAY);

        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_BW_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_BW_temp.jpg";
        Imgcodecs.imwrite(output, destination);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.MorphFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________MORPH_______________**");

    try {//from   w  w  w .j a v a  2 s  . c om

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________

        int elementSize = 9;

        Mat source = Imgcodecs.imread(savePath);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());
        Mat element = Imgproc.getStructuringElement(Imgproc.CV_SHAPE_RECT,
                new Size(elementSize * 2 + 1, elementSize * 2 + 1), new Point(elementSize, elementSize));
        Imgproc.morphologyEx(source, destination, Imgproc.MORPH_GRADIENT, element);

        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_MORPH_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_MORPH_temp.jpg";
        Imgcodecs.imwrite(output, destination);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:src.model.filters.SobelFilter.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    System.out.println("**______________SOBEL_______________**");

    try {//from   w  w  w. j  ava2  s.com

        String imgInput = request.getParameter("name").toString();
        String savePath = savePath(request);
        //____________________________________  

        int kernelSize = 3;
        // Mat source = Imgcodecs.imread(folder+"\\"+imgName, Imgcodecs.CV_LOAD_IMAGE_GRAYSCALE);

        Mat source = Imgcodecs.imread(savePath, Imgcodecs.CV_LOAD_IMAGE_GRAYSCALE);
        Mat destination = new Mat(source.rows(), source.cols(), source.type());

        Mat kernel = new Mat(kernelSize, kernelSize, CvType.CV_32F) {
            {
                put(0, 0, -3);
                put(0, 1, -3);
                put(0, 2, -3);

                put(1, 0 - 3);
                put(1, 1, 0);
                put(1, 2, -3);

                put(2, 0, 5);
                put(2, 1, 5);
                put(2, 2, 5);
            }
        };

        Imgproc.filter2D(source, destination, -8, kernel);
        String output = savePath.substring(0, savePath.lastIndexOf(".")) + "_SOBEL_temp.jpg";
        imgInput = request.getParameter("name").toString();
        String imgOutput = imgInput.substring(0, imgInput.lastIndexOf(".")) + "_SOBEL_temp.jpg";
        Imgcodecs.imwrite(output, destination);

        //____________________________________
        System.out.println("output: " + output);
        System.out.println("imgOutput: " + imgOutput);

        publishImg(response, imgOutput);

    } catch (Exception e) {
        System.out.println("Error: " + e.getMessage());
    }
}

From source file:syncleus.dann.data.video.FernEnsembleClassifier.java

License:Apache License

/**
 * The numbers in this array can be up to 2^params.structSize as we shift left once of each feature
 *///w  ww. j  av  a  2  s.  c  o  m
int[] getAllFernsHashCodes(final Mat patch, int scaleIdx) {
    final int[] result = new int[ferns.length];
    final byte[] imageData = TLDUtil.getByteArray(patch);
    final int cols = patch.cols();
    for (int fern = 0; fern < ferns.length; fern++) {
        result[fern] = ferns[fern].calculateHashCode(scaleIdx, imageData, cols);
    }

    return result;
}