challenge-bot.com Git - 3501/OpenCVShowImage/blob - IsolateImage.java

   1 import java.util.ArrayList;
   2
   3 import org.opencv.core.Core;
   4 import org.opencv.core.Mat;
   5 import org.opencv.core.MatOfPoint;
   6 import org.opencv.core.Point;
   7 import org.opencv.core.Scalar;
   8 import org.opencv.core.Size;
   9 import org.opencv.imgcodecs.Imgcodecs;
  10 import org.opencv.imgproc.Imgproc;
  11
  12 public class IsolateImage {
  13
  14         public static Mat matOriginal;
  15         public static Mat filtered;
  16         public static Mat kernel;
  17         public static Mat matHierarchy;
  18
  19         public static final Scalar LOWER_BOUNDS = new Scalar(169, 164, 103);
  20         public static final Scalar UPPER_BOUNDS = new Scalar(255, 229, 140);
  21         public static final Scalar BLACK = new Scalar(0, 0, 0);
  22         // public static final Scalar UPPER_BOUNDS = new Scalar(0, 255, 255);
  23
  24         static {
  25                 System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
  26         }
  27
  28         public static void main(String args[]) throws Exception {
  29
  30                 matOriginal = new Mat();
  31                 filtered = new Mat();
  32                 matHierarchy = new Mat();
  33
  34                 kernel = Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(5, 5));
  35
  36                 processImage();
  37         }
  38
  39         public static void processImage() {
  40                 ArrayList<MatOfPoint> contours = new ArrayList<MatOfPoint>();
  41                 contours.clear();
  42                 matOriginal = Imgcodecs.imread("imgs/testpicture.png"); // convert image
  43                 // into matrix
  44
  45                 filtered = matOriginal;
  46                 Imgproc.GaussianBlur(matOriginal, filtered, new Size(17, 17), Core.BORDER_DEFAULT);
  47
  48                 Core.inRange(matOriginal, LOWER_BOUNDS, UPPER_BOUNDS, filtered);
  49                 // Imgproc.erode(matOriginal, filtered, kernel, new Point(-1, -1), 4);
  50                 Imgproc.dilate(matOriginal, filtered, kernel, new Point(-1, -1), 4);
  51                 // Imgproc.findContours(filtered, contours, matHierarchy,
  52                 // Imgproc.RETR_EXTERNAL, Imgproc.CHAIN_APPROX_SIMPLE);
  53
  54                 // for (MatOfPoint mop : contours) {
  55                 // Rect rec = Imgproc.boundingRect(mop);
  56                 // Imgproc.rectangle(matOriginal, rec.br(), rec.tl(), BLACK, 5);
  57                 // }
  58                 Imgcodecs.imwrite("output.png", filtered);
  59
  60         }
  61 }