Browse our Products

Aspose.OCR for .NET 21.10 - Release Notes

This page contains release notes information for Aspose.OCR for .NET 21.10

GPU version: 21.6.0

All Features

Key	Summary	Category
OCRNET-425	Ability to set letters/symbols enum in Recognition settings	Enhancement
OCRNET-422	Investigate contrast correction algorythm in OCR-cloud code	Enhancement
OCRNET-420	Implement median blur filter.	Enhancement
OCRNET-419	Implement adaptive median thresholding.	Enhancement
OCRNET-421	Implement MorphologyEx: advanced morphological transformations.	Enhancement

Enhancements

added ability to set contrast correction preprocessing filter before recognition
extended preprocessing filters with median and contrast correction filters
added ability to set only digits or latin letters recognition

Public API and Backwards Incompatible Changes

New API

added new filters in the PreprocessingFilters: Median, ContrastCorrectionFilter
added new property in the RecognitionSettings class: - AutoContrast - AllowedCharacters
added enum CharactersAllowedType

Removed APIs

Will be deprecated

Usage Example

using Aspose.OCR;

namespace ProgramOCR
{
    class Program
    {
        static void Main(string[] args)
        {
            // Get API
            AsposeOcr api = new AsposeOcr();

            // Create license
            License lic = new License();

            // Set license 
            lic.SetLicense("Aspose.Total.lic");

            // Get image file for recognize
            string image = "img.png";

            // set filters as you need
            PreprocessingFilter filters = new PreprocessingFilter
            {
                 PreprocessingFilter.Median(),
				 PreprocessingFilter.ContrastCorrectionFilter()
            };
			
            // use filters as settings in recognition process
            var res = api.RecognizeImage(image, new RecognitionSettings { PreprocessingFilters = filters });
            Console.WriteLine(res.RecognitionText);
			
			
					
			// Set allowed characters (only digits)
			 var res2 = api.RecognizeImage(imgPath, new RecognitionSettings
            {
                AllowedCharacters = CharactersAllowedType.DIGITS // ALL, LATIN_ALPHABET
            });
        }
    }
}