Create OMR Sheet Checker or Scanner with Java | https://blog.aspose.com/2021/08/05/create-omr-sheet-checker-or-scanner-with-java/

01_Create_OMR_Question_and_Answer_Sheet_Checker_or_Scanner_Software_using_Java

Read the complete article about creating OMR sheet checker or scanner with Java by visiting the following link.
https://blog.aspose.com/2021/08/05/create-omr-sheet-checker-or-scanner-with-java/

Create_OMR_Template.java

// Source and output directory paths
String sourceDirectory = "SourceDirectory\\OMR\\Generation\\";
String outputDirectory = "OutputDirectory\\";

// Create an instance of the OmrEngine class
OmrEngine engine = new OmrEngine();

// Generate template using the text markup
GenerationResult res = engine.generateTemplate(sourceDirectory + "Grid.txt");

// Check in case of errors
if (res.getErrorCode() != 0)
{
    System.out.println("ERROR CODE: " + res.getErrorCode());
}

// Save the generation result: image and .omr template
res.save(outputDirectory, "Grid");

Perform_OMR_Operation.java

// Source and output directory paths
String sourceDirectory = "SourceDirectory\\OMR\\";
String outputDirectory = "OutputDirectory\\";

String TemplateName = "Sheet.omr";
String[] UserImages = new String[] { "Sheet1.jpg", "Sheet2.jpg" };
String[] UserImagesNoExt = new String[] { "Sheet1", "Sheet2" };

// Create an instance of the OmrEngine class
OmrEngine engine = new OmrEngine();

// Load the template file
TemplateProcessor templateProcessor = engine.getTemplateProcessor(sourceDirectory + "Sheet.omr");
System.out.println("Template loaded.");

// Loop through the images
for (int i = 0; i < UserImages.length; i++) {

    // Recognize image and receive result
    RecognitionResult result = templateProcessor.recognizeImage(sourceDirectory + UserImages[i]);

    // Export results as csv string
    String csvResult = result.getCsv();

    // Save csv to the output folder
    PrintWriter wr = new PrintWriter(new FileOutputStream(outputDirectory + UserImagesNoExt[i] + ".csv"), true);
    wr.println(csvResult);
}