This short tutorial contains the stepwise instructions to compare Images in Java, how to configure the document comparison library and provides a sample code to show the implementation of Java compare images functionality. This guide does not depends upon any additional third-party software and can be used on any operating system like MS Windows, Linux, and Mac OS. Below you can find the thorough instruction and code for comparing images using Java.
Steps to Compare Images in Java
- Install GroupDocs.Comparison for Java from the Maven repository in the Java application to compare images
- Import essential classes for developing the functionality for comparing images
- Create an object of the Comparer class and pass the source image file to its constructor
- Call the add method of the Comparer class and specify the target PNG file path
- Finally, call the compare method and pass the resultant image file path for comparison
The above points allow you to easily create the compare images Java capability. The image comparison process can be initiated by installing the required library and including the necessary classes. Then, the Comparer class allows you to load the source image file by creating its instance. In the next step, invoke the add method for loading the target PNG file for comparison and finally save the resultant file to the disk by calling the compare method.
Code to Compare Images in Java
We have developed the compare two images and highlight differences Java functionality in the above code snippet. We have consumed a couple of API calls of the document comparison library for performing the image comparison using Java. Moreover, we have provided sample PNG images as source and target documents and you may use this sample code for comparing images of other formats.
We have discussed the detailed process for Java image comparison capability. Recently, we published an article on comparing PowerPoint files in Java, have a look at how to Compare PowerPoint Files using Java guide for more information.
