Tracking recognition progress

Aspose.OCR for .NET exposes the Aspose.OCR.AsposeOcr.OcrProgress event, which is raised when a page or file from a batch is processed. You can implement an event listener and report progress even in case of multi-threaded recognition.

The event handler not only reports information about the processed file during batch processing of multiple images, but also reports information about the stage of recognition/processing of each individual image.

Aspose.OCR.AsposeOcr recognitionEngine = new Aspose.OCR.AsposeOcr();
// Add images to OcrInput object
Aspose.OCR.OcrInput input = new Aspose.OCR.OcrInput(Aspose.OCR.InputType.SingleImage);
input.Add("page1.png");
input.Add("page2.png");
// Event handler
recognitionEngine.OcrProgress += (Aspose.OCR.Models.Events.OcrPageRecognizeEventsArgs e) => {
	Console.WriteLine($"Read page: {e.CurrentPage} | image: {e.CurrentImage} | time taken: {e.Duration.TotalSeconds} sec");
};
// Recognize images
Aspose.OCR.OcrOutput results = recognitionEngine.Recognize(input);
Aspose.OCR.AsposeOcr.SaveMultipageDocument("result.json", Aspose.OCR.SaveFormat.Json, results);

For each page or file, the following information is reported:

Property	Type	Description
FileName	string	The name of the file that is currently being recognized.
CurrentImage	int	The ordinal number of the image.
CurrentPage	int	The ordinal number of the page in a batch or a multi-page image/document.
Duration	TimeSpan	The time interval from the start of image or page recognition until it is fully recognized.
OperationName	string	Progress stage of a single image recognition.