Desktop: OpenCV Merge Two Image

import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.Rect;
import org.opencv.imgcodecs.Imgcodecs;

public class OpenCV_MergeTwoImage {

    public static void main( String[] args )
    {
        try{
            System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
            Mat source = Imgcodecs.imread("D:\\projects\\Java\\OpenCV_Samples\\resource\\imgs\\ncku.jpg ",Imgcodecs.CV_LOAD_IMAGE_COLOR);
            Mat source1 = Imgcodecs.imread("D:\\projects\\Java\\OpenCV_Samples\\resource\\imgs\\jelly_studio_logo.jpg ",Imgcodecs.CV_LOAD_IMAGE_COLOR);
            Mat destination=source.clone();

            //Imgproc.resize
            Rect roi=new Rect(50,50,90,62);
            Mat destinationROI = source.submat( roi );
            source1.copyTo( destinationROI , source1);

            Imgcodecs.imwrite("D:\\projects\\Java\\OpenCV_Samples\\resource\\imgs\\merge2.jpg ", source);
        }catch (Exception e) {
            System.out.println("error: " + e.getMessage());
        }
    }
}

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