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import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.awt.image.PixelGrabber;
import java.io.FileOutputStream;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class Main {
public static void main(String[] args) throws Exception {
BufferedImage img = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
Graphics g = img.getGraphics();
g.setColor(Color.red);
g.setFont(new Font("Arial", Font.BOLD, 14));
g.drawString("Reference", 10, 80);
int w = 100;
int h = 100;
int x = 1;
int y = 1;
int[] pixels = new int[w * h];
PixelGrabber pg = new PixelGrabber(img, x, y, w, h, pixels, 0, w);
pg.grabPixels();
BufferedImage bimg = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
bimg.setRGB(x + i, y + j, pixels[j * w + i]);
}
}
FileOutputStream fout = new FileOutputStream("jpg.jpg");
JPEGImageEncoder jencoder = JPEGCodec.createJPEGEncoder(fout);
JPEGEncodeParam enParam = jencoder.getDefaultJPEGEncodeParam(bimg);
enParam.setQuality(1.0F, true);
jencoder.setJPEGEncodeParam(enParam);
jencoder.encode(bimg);
fout.close();
}
}
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