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Aspose.OCR for .NET 22.7 - Release Notes
This article contains a summary of recent changes, enhancements and bug fixes in Aspose.OCR for .NET 22.7 (July 2022) release.
GPU version: 21.6.0
What was changed
Key | Summary | Category |
---|---|---|
n/a | Fixed incompatibility between Aspose.OCR and Aspose.OMR installers. | Fix |
OCRNET-551 | Added image noise reduction filter. | New feature |
OCRNET-551 | Added image skew correction filter. | New feature |
Public API changes and backwards compatibility
This section lists all public API changes introduced in Aspose.OCR for .NET 22.7 that may affect the code of existing applications.
Added public APIs:
The following public APIs have been introduced in this release:
PreprocessingFilter.AutoDenoising()
A new preprocessing filter that automatically removes dirt, spots, scratches, glare, unwanted gradients, and other noise from recognized images.
PreprocessingFilter.AutoSkew()
A new preprocessing filter that automatically straightens skewed images. This can greatly improve the recognition accuracy of smartphone photos and inaccurately scanned pages.
Updated public APIs:
No changes.
Removed public APIs:
No changes.
Usage examples
The examples below illustrates the changes introduced in this release:
Clean up a noisy image
using Aspose.OCR;
namespace ProgramOCR
{
class Program
{
static void Main(string[] args)
{
// Create instance of OCR API
AsposeOcr api = new AsposeOcr();
// Add denoise preprocessing filter
PreprocessingFilter filters = new PreprocessingFilter {
PreprocessingFilter.AutoDenoising()
};
// Preprocess an image
MemoryStream ms = api.PreprocessImage("image.jpg", filters)
// Save cleaned image into a file
using(FileStream file = new FileStream("result.png", FileMode.Create, System.IO.FileAccess.Write))
{
ms.WriteTo(file);
}
}
}
}
Straighten skewed image
using Aspose.OCR;
namespace ProgramOCR
{
class Program
{
static void Main(string[] args)
{
// Create instance of OCR API
AsposeOcr api = new AsposeOcr();
// Add deskew preprocessing filter
PreprocessingFilter filters = new PreprocessingFilter {
PreprocessingFilter.AutoSkew()
};
// Preprocess an image
MemoryStream ms = api.PreprocessImage("image.jpg", filters)
// Save straightened image into a file
using(FileStream file = new FileStream("result.png", FileMode.Create, System.IO.FileAccess.Write))
{
ms.WriteTo(file);
}
}
}
}