ImageTest

ImageTest.java

package local;

import org.junit.Test;

import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.FileOutputStream;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Iterator;

/**
 * @author Li Pengcheng
 *         Create on 8/26/16
 */

public class ImageTest {

    static String TEST_DIR = "/Users/lee/Downloads/test";
    static String IMAGE_NAME = "testD.jpg";
    static String OUTPUT_FILE = "test.jpg";
    @Test
    public void testImage() throws Exception {
        Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("JPEG");
        while (readers.hasNext()) {
            System.out.println("reader: " + readers.next());
        }

        byte[] dates = Files.readAllBytes(Paths.get(TEST_DIR + "/" + IMAGE_NAME));
//        byte[] bytesEncoded = Base64.encodeBase64(dates);
//        dates = Base64.decodeBase64(bytesEncoded);
//        BufferedImage bufferedImage = ImageUtils.toBufferedImage(dates);
        BufferedImage bufferedImage2 = ImageIO.read(new ByteArrayInputStream(dates));
        ImageIO.write(bufferedImage2, "jpg" , new FileOutputStream(TEST_DIR + "/" + OUTPUT_FILE));
    }

}