OcrHocrRenderer Class

Create HOcr Renderer interface for rendering tesseract results into a document

Inheritance Hierarchy

SystemObject
Patagames.OcrOcrResultRenderer
Patagames.OcrOcrHocrRenderer

Namespace: Patagames.Ocr
Assembly: Patagames.Ocr (in Patagames.Ocr.dll) Version: 4.6.411

Syntax

C++

JavaScript

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public class OcrHocrRenderer : OcrResultRenderer

Public Class OcrHocrRenderer
	Inherits OcrResultRenderer

public ref class OcrHocrRenderer : public OcrResultRenderer

type OcrHocrRenderer = 
    class
        inherit OcrResultRenderer
    end

public class OcrHocrRenderer extends OcrResultRenderer

Patagames.Ocr.OcrHocrRenderer = function();

Type.createClass(
	'Patagames.Ocr.OcrHocrRenderer',
	Patagames.Ocr.OcrResultRenderer);

The OcrHocrRenderer type exposes the following members.

Properties

	Name	Description
	Extension	Gets renderer extension (Inherited from OcrResultRenderer)
	Handle	Handle to internal tesseract renderer (Inherited from OcrResultRenderer)
	ImageCount	Gets the index of the last image given to AddImage (i.e. images are incremented whether the image succeeded or not) (Inherited from OcrResultRenderer)
	Title	Gets document title (Inherited from OcrResultRenderer)

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Methods

	Name	Description
	AddImage	Adds the recognized text from the source image to the current document. Invalid if BeginDocument not yet called. (Inherited from OcrResultRenderer)
	BeginDocument	Starts a new document with the given title. This clears the contents of the output data. (Inherited from OcrResultRenderer)
	Create(String)	Create new instance of OcrHocrRenderer class.
	Create(String, Boolean)	Create new instance of OcrHocrRenderer class.
	Dispose	Releases all resources used by this OcrResultRenderer (Inherited from OcrResultRenderer)
	EndDocument	Finishes the document and finalizes the output data. Invalid if BeginDocument(String) not yet called. (Inherited from OcrResultRenderer)
	Insert	Insert renderer (Inherited from OcrResultRenderer)
	Next	Get next rendeder. (Inherited from OcrResultRenderer)

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Remarks

This interface is then used to inject the renderer class into tesseract when processing images.

For simplicity implementing this with tesesract version 3.01, the renderer contains document state that is cleared from document to document just as the TessBaseAPI is. This way the base API can just delegate its rendering functionality to injected renderers, and the renderers can manage the associated state needed for the specific formats in addition to the heuristics for producing it.

Reference

Patagames.Ocr Namespace