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In this article, we will discuss how to programmatically find differences between two photos. After going through this, you will find it easy to compare any photos and highlight the identified differences using Java or Kotlin.
In this article, I will use Java API of GroupDocs.Comparison for comparing photos. Along with the most used image formats, like PNG, JPG/JPEG, and GIF, there is a wide range of supported file formats for comparison. Additionally, the API allows comparing word-processing documents, spreadsheets, presentations, drawings, webpages, email messages, source code files, and much more.
Get the photos comparison library from the downloads section. For Maven, Gradle or Kotlin based Java applications, installation process is very simple and described on corresponding documentation page. Later, you can try the examples of this article as well as many more from GitHub. For the details, you may also visit the API Reference.
Comparing the photos and get the result is just 3 lines of code. You can follow the steps and use the mentioned source code for comparing any of your JPG, PNG, BMP, DICOM, DjVu, GIF, and other images. You can identify the dissimilarities or variations among these within the Java application.
- Select the first photo to compare using constructor of the Comparer class.
- Add the second photo for comparison using the appropriate add method of Comparer object.
- Call the compare method to get the comparison result of both photos.
Here is the code, compares two JPG photos and saves the output that highlights the identified differences.
The following code shows how to compare two photos in Java
Source and target photos
You can get a free temporary license in order to use the API without the evaluation limitations.
To conclude from this article, we learned how to compare photos in Java. We further highlighted the identified differences after the comparison. Now you can build your own photo comparer app or use these features within your Java applications.
- How to compare files in Java or Kotlin
- How to compare images using Java or Kotlin
- How to compare Text, Word or PDF in Java or Kotlin
- How to compare two or more files in Java or Kotlin
- How to compare any files using Compose Desktop
- How to run Dropwizard Comparison sample as Docker container
- How to run Spring Comparison sample as Docker container
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