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Shahzad Ashraf
Shahzad Ashraf

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How to Compare Images in Java Using the Cloud-Based REST API

Recognizing visual discrepancies between images is a vital capability in numerous contemporary Java applications, particularly in areas such as document evaluation, digital publishing, and visual quality assurance. With the GroupDocs.Comparison Cloud Java SDK, developers can seamlessly incorporate advanced image comparison features into their Java-based applications with just a handful of REST API requests.

This cloud-driven REST API goes beyond simple visual matching. It enables you to programmatically compare images using Java, create comprehensive difference reports, and pinpoint visual alterations with pixel-level accuracy. Whether you are dealing with scanned documents, design updates, or visual assets, the SDK aids in automating and scaling your image comparison tasks efficiently and securely—eliminating the need for manual inspections.

By utilizing the Java REST API from GroupDocs Cloud, developers can simplify the challenges of comparing image files, enhance collaborative document workflows, and ensure precision across content iterations. Designed for developers, endorsed by enterprises, and straightforward to integrate, this Java Cloud SDK for image comparison revolutionizes the way image differences are identified and documented in practical applications. Check out our detailed tutorial and start today!

The following code example will assist you in incorporating this functionality into your Java projects:

package com.groupdocs;
import com.groupdocs.cloud.comparison.client.*;
import com.groupdocs.cloud.comparison.api.*;
import com.groupdocs.cloud.comparison.model.*;
import com.groupdocs.cloud.comparison.model.requests.*;

public class CompareImages {
    public static void main(String[] args) {

        // Initialize API client with client ID and client secret
        String MyClientId = "your-client-id";
        String MyClientSecret = "your-client-secret";
        Configuration configure = new Configuration(MyClientId, MyClientSecret);

        // Create an instance of CompareApi
        CompareApi comparisonApi = new CompareApi(configure);

        // Set up the FileInfo object for the source presentation
        FileInfo sourceFile = new FileInfo();

        // Source file path in cloud storage
        sourceFile.setFilePath("SampleFiles/source.jpg");

        // Set up the FileInfo object for the target presentation
        FileInfo targetFile = new FileInfo();

        // Target file path in cloud storage
        targetFile.setFilePath("SampleFiles/target.jpg");

        // Create and set up the ComparisonOptions object
        ComparisonOptions options = new ComparisonOptions();
        options.setSourceFile(sourceFile);
        options.addTargetFilesItem(targetFile);

        // Specify output path in cloud storage
        options.setOutputPath("comparison/compared.pdf");

        try {

            // Create the comparisons request
            ComparisonsRequest request = new ComparisonsRequest(options);
            // Perform the comparison and get the response
            Link response = comparisonApi.comparisons(request);

        } catch (ApiException e) {
            System.err.println("Exception when calling CompareApi#comparisons");
            e.printStackTrace();
        }
    }
}
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