Last Updated:

How do I convert an image to a byte array in Java?

First of all, let's define what a byte is and what it represents. In Java, the byte type is an 8-bit integer. Its range is from -128 to 127. In this article, we will convert the picture into an array of such bytes. Any image is a file, so we are faced with the task of converting a file into a byte array that is convenient to work with, store or transfer.

Converting an image to a byte array in Java

Our implementation used a class whose use is the most efficient way to make such conversions:BufferedImage

Here's a short article about converting an image to a byte array in Java.