Image Manipulation using Java

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by Abdul Rawoof A R dot icon Updated: Feb 3, 2023

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Java is one of the popular languages to implement image manipulation. It provides immediate access to the image pixels and color information and it also allows conversions and image processing.

Java supports only the following formats for images by default,

  • JPEG
  • PNG
  • BMP
  • GIF

Other than that, if we attempt to work with an image file that is different from the above-mentioned formats, your application will not be able to read or understand it and it will throw a NullPointerException when we access the BufferedImage variable. Java implements a particular type of object which is called 'BufferedImage' for images in Java and classes required in Java to perform the read and write operations. For that, we must import the file class first. BufferedImage is nothing but it is a subclass of the image class and it is used to manipulate and handle the image data. It is made up of the ColorModel of image data.

Here is an example of how you can implement image manipulation in Java: