In this how-to article, we explain the step-by-step process to compare Images in C# by using one of the best document comparison library. This tutorial also provides information for configuring the required library, how to consume its APIs, and a sample code to demonstrate the implementation of Image comparison in C# capability. Here are the stepwise instructions along with the working example for comparing two images using C#.

Steps to Compare Images in C#

1. Install GroupDocs.Comparison for .NET package from the NuGet website for comparing the images
2. Add a reference to the GroupDocs.Comparison namespace for implementing C# compare two Images functionality
3. Create an instance of the Comparer class for loading the source Image file
4. Call the Add method of the Comparer class for loading the target Image document
5. Finally, use the Compare method of the Comparer class for saving the resultant Image file to the disk

We have outlined the steps above for creating the C# compare Images capability. It only requires consuming a couple of API calls of the document comparison library for comparing images. Further, it does not require the installation of any additional third-party software. Moreover, these points can be used on any operating system including MS Windows, Linux, and Mac OS.

Code to Compare Images in C#

In the preceding snippet, we have developed the compare two Images and highlight differences C# functionality to show the working of this feature. This sample code takes two images as a source and target for performing the comparison and storing the result in another file. Moreover, this example can be used for comparing multiple images by providing target documents using the Add method.

We have discussed the detailed process to develop the compare two Images C# capability. Recently, we published an article on comparing Excel files in C#, have a look at how to Compare Excel Files using C# guide for more information.