Java tutorial
import java.awt.Color; import java.awt.Graphics2D; import java.awt.RenderingHints; import java.awt.image.BufferedImage; import java.io.File; import javax.imageio.ImageIO; public class Main { public static void main(String[] args) throws Exception { BufferedImage bi = new BufferedImage(100, 100, BufferedImage.TYPE_USHORT_GRAY); Graphics2D g2d = bi.createGraphics(); g2d.setColor(Color.WHITE); g2d.fillRect(0, 0, 100, 100); g2d.setColor(new Color(255, 123, 0)); g2d.drawLine(100, 100, 1, 1); g2d.dispose(); BufferedImage scaledImage = new BufferedImage(1000, 1000, BufferedImage.TYPE_USHORT_GRAY); Graphics2D graphics2D = scaledImage.createGraphics(); graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); graphics2D.drawImage(bi, 0, 0, 1000, 1000, null); graphics2D.dispose(); ImageIO.write(scaledImage, "png", new File("c:/Java_Dev/Test.png")); bi.flush(); } }