Java BufferedImage: Usage and Examples

BufferedImage is an important class in Java for handling images, providing a convenient way to manipulate image data.

BufferedImage is used to represent an image, enabling pixel-level operations, drawing, scaling, rotation, and more. It allows for reading, storing, and processing images effectively.

Common uses of BufferedImage include:

1. Create a BufferedImage object: You can either use the static methods of the ImageIO class to read an image file, or use the createCompatibleImage method of the Graphics class to create a new BufferedImage object.
2. You can obtain the width and height of an image by using the getWidth() and getHeight() methods.
3. Accessing and setting pixel values: The color value of a pixel can be obtained and modified using the getRGB() and setRGB() methods.
4. Draw the image: You can use the drawImage() method of the Graphics2D class to draw a BufferedImage onto a Graphics object.
5. Resize and rotate images: You can use the AffineTransform class to implement image resizing and rotating operations.
6. Save image: You can use the static methods of the ImageIO class to save a BufferedImage as an image file in a specific format.

In general, BufferedImage offers a wide range of image processing capabilities and is one of the important tools for handling images in Java.