How To Draw On A Bufferedimage In Java

Java BufferedImage Class

Java BufferedImage form is a subclass of Image class. Information technology is used to handle and manipulate the image data. A BufferedImage is made of ColorModel of prototype data. All BufferedImage objects accept an upper left corner coordinate of (0, 0).

Constructors

This class supports three types of constructors.

The first constructor constructs a new BufferedImage with a specified ColorModel and Raster.

BufferedImage(ColorModel cm, WritableRaster raster,  boolean isRasterPremultiplied, Hashtable<?,?> properties)

The second constructor constructs a BufferedImage of one of the predefined image types.

BufferedImage(int width, int top, int imageType)

The third constructor constructs a BufferedImage of one of the predefined image types: TYPE_BYTE_BINARY or TYPE_BYTE_INDEXED.

BufferedImage(int width, int summit, int imageType, IndexColorModel cm)

Sr.No	Method & Description
1	copyData(WritableRaster outRaster) It computes an arbitrary rectangular region of the `BufferedImage` and copies information technology into a specified WritableRaster.
2	getColorModel() Information technology returns object of course ColorModel of an image.
3	getData() Information technology returns the image equally i large tile.
4	getData(Rectangle rect) It computes and returns an arbitrary region of the `BufferedImage`.
5	getGraphics() This method returns a Graphics2D, retains backwards compatibility.
vi	getHeight() It returns the elevation of the `BufferedImage`.
seven	getMinX() It returns the minimum ten coordinate of this `BufferedImage`.
8	getMinY() It returns the minimum y coordinate of this `BufferedImage`.
9	getRGB(int x, int y) It returns an integer pixel in the default RGB colour model (TYPE_INT_ARGB) and default sRGB colorspace.
10	getType() It returns the image type.

Example

The post-obit example demonstrates the utilise of coffee BufferedImage class that draw some text on the screen using Graphics Object −

import java.awt.Graphics; import java.awt.Image; import coffee.awt.image.BufferedImage;  import javax.swing.JFrame; import javax.swing.JPanel;  public class Examination extends JPanel {     public void pigment(Graphics chiliad) {       Prototype img = createImageWithText();       1000.drawImage(img, twenty,20,this);    }     individual Prototype createImageWithText() {       BufferedImage bufferedImage = new BufferedImage(200,200,BufferedImage.TYPE_INT_RGB);       Graphics g = bufferedImage.getGraphics();        g.drawString("www.tutorialspoint.com", 20,20);       g.drawString("www.tutorialspoint.com", xx,xl);       g.drawString("www.tutorialspoint.com", twenty,60);       k.drawString("www.tutorialspoint.com", twenty,80);       k.drawString("world wide web.tutorialspoint.com", 20,100);              return bufferedImage;    }        public static void main(String[] args) {       JFrame frame = new JFrame();       frame.getContentPane().add(new Test());        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       frame.setSize(200, 200);       frame.setVisible(true);    } }