C/C++ OCR and Barcode Recognition

High performance, royalty-free C/C++ OCR and barcode recognition on Windows, Linux, Mac OS and Unix

C/C++ OCR Demos

Basics

Programming with Asprise OCR is very straightforward. Below is the typical source code sample in C/C++ to recognize images:

#include <iostream>
#include "asprise_ocr_api.h"

void testOcr() {
   const char * libFolder = "LIB_FOLDER";
   LIBRARY_HANDLE libHandle = dynamic_load_aocr_library(libFolder);

   // one time setup
   int setup = c_com_asprise_ocr_setup(false);

   // starts the ocr engine; the pointer must be of long long type
   long long ptrToApi = c_com_asprise_ocr_start("eng", OCR_SPEED_FAST, NULL, NULL, NULL);

   char * s = c_com_asprise_ocr_recognize(ptrToApi, "image.png", -1, -1, -1, -1, -1,
      OCR_RECOGNIZE_TYPE_ALL, OCR_OUTPUT_FORMAT_PDF,
      "PROP_PDF_OUTPUT_FILE=result.pdf|PROP_PDF_OUTPUT_TEXT_VISIBLE=true|\
            PROP_PDF_OUTPUT_RETURN_TEXT=text", "|", "=");

   std::cout << "Returned: " << s << std::endl;

   // do more recognition here ...

   // finally, stops the OCR engine.
   c_com_asprise_ocr_stop(ptrToApi);

   dynamic_unload_aocr_library(libHandle);
}

With the below sample input image:

Extract Text and Barcodes in Plain Text Format

Asprise OCR and Barcode Recognition

High performance, royalty-free OCR and barcode recognition on Windows,
...
ISBN-l3, Interleaved 2 of 5, Code 39, Code 128, PDF417, and QR Code.

[[QR-Code: www.asprise.com]]
[[CODE-128: Asprise]].

XML Format Provides Information Like Confidence and Coordinates & Tables

If you need additional information like accuracy confidence and text coordinates, you can select XML as the output format. Additionally, table information like rows and cells are also available in XML.

<?xml version="1.0"?>
<asprise-ocr input="test-image.png">
  <page no="1" width="2400" height="3200" words="124" confidence="92">
    <block type="text"  x="320" y="248" width="1176" height="63" words="5" confidence="88">
Asprise OCR and Barcode Recognition
    </block>
...
    <block type="barcode" subtype="QR-Code" x="1397" y="1647" width="441" height="441">www.asprise.com</block>
    <block type="barcode" subtype="CODE-128" x="348" y="1651" width="583" height="147">Asprise</block>
  </page>
</asprise-ocr>

Click here to view the actual XML