Optical Character Recognition

The ImageGear Recognition component provides access to document recognition technology.

The Recognition Component is available for ImageGear Professional DLL 32-bit versions.

This core software module provides recognition for almost any document, including those produced on typewriters, dot-matrix printers, ink-jet printers, laser printers, and phototypesetters, as well as photocopied and faxed versions of any document.

Using the ImageGear Recognition component, you can recognize a document image and export the text in one of the supported output formats. These formats include 8-bit ASII and 16-bit Unicode text, Microsoft Word, HTML, and others.

The ImageGear Recognition Component also allows a user to:

Manage delineated zones of a document page and then specify treatment for those zones. This includes the ability to correct the OCR engine's automatic segmentation between the segmentation phase and the recognition phase.
Process both text and graphics. The recognition software's ability to distinguish graphics from text can provide the basis of a compound document processing system.
Automatically detect fax, dot matrix, and other degraded documents and compensate accordingly.
Recognize Chinese Simplified, Chinese Traditional, Japanese, and Korean languages.

Portions of this document are excerpted from OmniPage Capture SDK 16.5 reference materials. Copyright © 2008 Nuance Communications, Inc. All rights reserved. Nuance, the Nuance logo, and OmniPage are trademarks or registered trademarks of Nuance Communications Inc. in the United States and/or other countries.

The figure below illustrates a simple application that takes a page image as input and produces recognized text in a variety of output formats.

This section provides information about the following:

Optical Character Recognition

The very first working code

The code example below demonstrates loading and recognizing the TEST1.TIF image file. The image contains English, machine-printed text. The result will be saved in the TEST1.TXT text file.

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#include <windows.h> // Windows includes #include "gear.h" // Include for Accusoft ImageGear #include "i_rec.h" // Include for ImageGear Recognition component //Loading and recognizing the Image.tif image file. The result will be saved in the Image.txt text file. VOID Using_VeryFirst() { AT_ERRCOUNT nErrCount; HIGEAR hIGear; HIG_REC_IMAGE hImg; nErrCount = IG_comm_comp_attach("REC"); nErrCount = IG_REC_initialize(); nErrCount = IG_load_file("Image.tif", &hIGear ); nErrCount = IG_REC_image_import(hIGear, &hImg); nErrCount = IG_image_delete(hIGear); nErrCount = IG_REC_output_codepage_set("Windows ANSI"); nErrCount = IG_REC_output_text_format_set(IG_REC_DTXT_TXTS); nErrCount = IG_REC_image_recognize(hImg); nErrCount = IG_REC_output_direct_text_write(&hImg, 1, "Image.txt"); nErrCount = IG_REC_image_delete(hImg); nErrCount = IG_REC_close(); }

Copy Code

#include &lt;windows.h&gt;    // Windows includes
#include "gear.h"       // Include for Accusoft ImageGear
#include "i_rec.h"      // Include for ImageGear Recognition component
//Loading and recognizing the Image.tif image file. The result will be saved in the Image.txt text file.
VOID Using_VeryFirst()
{
    AT_ERRCOUNT nErrCount;
    HIGEAR     hIGear;
    HIG_REC_IMAGE    hImg;
    nErrCount = IG_comm_comp_attach("REC");
    nErrCount = IG_REC_initialize();
    nErrCount = IG_load_file("Image.tif", &amp;hIGear );
    nErrCount = IG_REC_image_import(hIGear, &amp;hImg);
    nErrCount = IG_image_delete(hIGear);
    nErrCount = IG_REC_output_codepage_set("Windows ANSI");
    nErrCount = IG_REC_output_text_format_set(IG_REC_DTXT_TXTS);
    nErrCount = IG_REC_image_recognize(hImg);
    nErrCount = IG_REC_output_direct_text_write(&amp;hImg, 1, "Image.txt");
    nErrCount = IG_REC_image_delete(hImg);
    nErrCount = IG_REC_close();
}

ImageGear Professional DLL v17.1 for Windows
Optical Character Recognition
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