package ijopencv.examples;

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import ij.IJ;
import ij.ImagePlus;
import ij.gui.GenericDialog;
import ij.plugin.filter.PlugInFilter;
import ij.process.ImageProcessor;
import ijopencv.ij.ImagePlusMatConverter;
import ijopencv.opencv.MatImagePlusConverter;
import org.bytedeco.javacpp.opencv_core;
import org.bytedeco.javacpp.opencv_core.Mat;
import org.bytedeco.javacpp.opencv_imgproc;
import static org.bytedeco.javacpp.opencv_imgproc.MORPH_RECT;
import static org.bytedeco.javacpp.opencv_imgproc.getStructuringElement;
import static org.bytedeco.javacpp.opencv_imgproc.morphologyEx;
import org.scijava.command.Command;
import org.scijava.plugin.Parameter;
import org.scijava.plugin.Plugin;

/**
 *
 * @author jonathan
 */
@Plugin(type = Command.class, headless = true, menuPath = "Plugins>IJ-OpenCV-plugins>Whitehat")
public class WhiteHatJ_ implements Command {
int xSize, ySize;




    @Parameter
    private ImagePlus imp;

    @Override
    public void run() {
        // Converter
        ImagePlusMatConverter ic = new ImagePlusMatConverter();
        MatImagePlusConverter mip = new MatImagePlusConverter();

        opencv_core.Mat m = ic.convert(imp,Mat.class);
        opencv_imgproc.cvtColor(m, m, opencv_imgproc.COLOR_BGR2GRAY);
        Mat res = new opencv_core.Mat();

        if (!showDialog()) {
            return;
        }
        
        Mat element = getStructuringElement(MORPH_RECT, new opencv_core.Size(xSize, ySize));

        morphologyEx(m, res, opencv_imgproc.MORPH_TOPHAT, element);

        ImagePlus imp2 = mip.convert(res,ImagePlus.class);
        imp2.show();

    }

    private boolean showDialog() {

        GenericDialog gd = new GenericDialog("White Hat Kernel");
        gd.addNumericField("X size", xSize, 1);
        gd.addNumericField("Y size", ySize, 1);
        //gd.addNumericField("Gaussian Kernel width:", gaussianKernelWidth, 0);

        gd.showDialog();
        if (gd.wasCanceled()) {
            return false;
        }

        xSize = (int) gd.getNextNumber();
        if (xSize < 1) {
            xSize = 1;
        }
        ySize = (int) gd.getNextNumber();
        if (ySize < 1) {
            ySize = 1;
        }

        return true;
    }


}