Hello All,
Today is my first day at OpenCV. I recently got fascinated with OCR and found OCV to be best and can do more than usual it. So after setting up my development environment I started to code.
OCV version 2.4.5
JDK 1.7
Eclipse
I got the code the test code working. Somehow my contours are not getting matched. Not sure if I am missing something
import org.opencv.imgproc.*;
import org.opencv.core.*;
import org.opencv.highgui.*;
import java.util.*;
public class Test{
public static void main(String args[]){
// Load the library
System.loadLibrary("opencv_java245");
// Consider the image for processing
Mat image = Highgui.imread("C:/Users/patiprad/Desktop/IwQY6.png", Imgproc.COLOR_BGR2GRAY);
Mat imageHSV = new Mat(image.size(), Core.DEPTH_MASK_8U);
Mat imageBlurr = new Mat(image.size(), Core.DEPTH_MASK_8U);
Mat imageA = new Mat(image.size(), Core.DEPTH_MASK_ALL);
Imgproc.cvtColor(image, imageHSV, Imgproc.COLOR_BGR2GRAY);
Imgproc.GaussianBlur(imageHSV, imageBlurr, new Size(5,5), 0);
Imgproc.adaptiveThreshold(imageBlurr, imageA, 255,Imgproc.ADAPTIVE_THRESH_MEAN_C, Imgproc.THRESH_BINARY,7, 5);
Highgui.imwrite("C:/Users/patiprad/Desktop/test1.png",imageBlurr);
List contours = new ArrayList();
Imgproc.findContours(imageA, contours, new Mat(), Imgproc.RETR_LIST,Imgproc.CHAIN_APPROX_SIMPLE);
//Imgproc.drawContours(imageBlurr, contours, 1, new Scalar(0,0,255));
for(int i=0; i< contours.size();i++){
System.out.println(Imgproc.contourArea(contours.get(i)));
if (Imgproc.contourArea(contours.get(i)) > 50 ){
Rect rect = Imgproc.boundingRect(contours.get(i));
System.out.println(rect.height);
if (rect.height > 28){
//System.out.println(rect.x +","+rect.y+","+rect.height+","+rect.width);
Core.rectangle(image, new Point(rect.x,rect.height), new Point(rect.y,rect.width),new Scalar(0,0,255));
}
}
}
Highgui.imwrite("C:/Users/patiprad/Desktop/test2.png",image);
}
}
Certainly am missing some basics here. Please find the result of the code.
[Result.png](/upfiles/1366570711277386.png)
[Input.png](/upfiles/13665706855601303.png)
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