OcrImageEnhancementMode Class

Specifies how image enhancement is applied during OCR processing.

Inheritance

System.Object

OcrImageEnhancementMode

Namespace: Syncfusion.OCRProcessor

Assembly: Syncfusion.OCRProcessor.Base.dll

Syntax

public sealed class OcrImageEnhancementMode : Enum

Examples

// Initialize the OCR processor.
OCRProcessor processor = new OCRProcessor();
//loading the input image.
FileStream stream = new FileStream(@"Input.pdf", FileMode.Open);
PdfLoadedDocument document = new PdfLoadedDocument(stream);
sets the image enhancement mode used for OCR processor
processor.ImageEnhancementMode = OcrImageEnhancementMode.EnhanceForRecognitionOnly;
document = processor.PerformOCR(document);
FileStream outputStream = new FileStream("Output.pdf", FileMode.CreateNew);
//Save the document into stream.
document.Save(outputStream);
document.Close(true);

Fields

EnhanceAndIncludeInOutput

Image is enhanced and the enhanced version is used in the output document.

Declaration

public const OcrImageEnhancementMode EnhanceAndIncludeInOutput

Field Value

Type
OcrImageEnhancementMode

EnhanceForRecognitionOnly

Image is enhanced internally to improve OCR accuracy, but the original image is retained in the output.

Declaration

public const OcrImageEnhancementMode EnhanceForRecognitionOnly

Field Value

Type
OcrImageEnhancementMode

None

No image enhancement is performed. The original image is used for OCR processing.

Declaration

public const OcrImageEnhancementMode None

Field Value

Type
OcrImageEnhancementMode