mx.iteso.desi.vision.ImagesMatUtils.java Source code

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Here is the source code for mx.iteso.desi.vision.ImagesMatUtils.java

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/*
 * Copyright 2017 Mario Contreras <marioc@nazul.net>.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package mx.iteso.desi.vision;

import java.awt.image.BufferedImage;
import java.awt.image.DataBufferByte;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.nio.ByteBuffer;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import org.opencv.core.Mat;
import org.opencv.core.MatOfByte;
import org.opencv.imgcodecs.Imgcodecs;

/**
 *
 * @author parres
 */
public class ImagesMatUtils {

    public static JLabel MatToJLabel(Mat mat) {

        JLabel ret = null;

        if (mat.empty()) {
            return null;
        }

        BufferedImage bufImage = null;

        try {
            InputStream in = MatToInputStream(mat);
            bufImage = ImageIO.read(in);
            ret = new JLabel(new ImageIcon(bufImage));
        } catch (Exception e) {
            e.printStackTrace();
        }

        return ret;
    }

    public static ImageIcon MatToImageIcon(Mat mat) {
        ImageIcon ret = null;

        BufferedImage bufImage = null;

        try {
            InputStream in = MatToInputStream(mat);
            bufImage = ImageIO.read(in);
            ret = new ImageIcon(bufImage);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return ret;

    }

    public static InputStream MatToInputStream(Mat mat) {
        InputStream ret = null;
        MatOfByte matOfByte = new MatOfByte();
        Imgcodecs.imencode(".jpg", mat, matOfByte);
        byte[] byteArray = matOfByte.toArray();

        ret = new ByteArrayInputStream(byteArray);
        return ret;
    }

}

// EOF