????? ? 下面code是對Tesseract-OCR 3.04版本進行簡單使用的舉例：包括兩段，一個是讀入帶有中文字符的圖像，一個是讀入僅有英文字符的圖像：

#include "funset.hpp"#include <iostream>
#include <string>
#include <vector>#include <allheaders.h>#include <baseapi.h>
#include <basedir.h>
#include <renderer.h>
#include <strngs.h>
#include <tprintf.h>
#include <openclwrapper.h>namespace {#ifdef _MSC_VER
void utf8_to_gbk(const char* utf8, char* gbk)
{const int maxlen = 128;wchar_t unicode_str[maxlen];int outlen = MultiByteToWideChar(CP_UTF8, 0, utf8, strlen(utf8), unicode_str, maxlen);outlen = WideCharToMultiByte(CP_ACP, 0, unicode_str, outlen, gbk, 128, nullptr, nullptr);gbk[outlen] = '\0';
}
#endif} // namespaceint test_recognize_image_content_1()
{// reference: https://github.com/tesseract-ocr/tesseract/wiki/APIExample
{ // chinese// Initialize tesseract-ocrtesseract::TessBaseAPI* api = new tesseract::TessBaseAPI();const char* datapath{ "E:/GitCode/OCR_Test/test_data/tessdata/" };if (api->Init(datapath, "chi_sim")) {fprintf(stderr, "Could not initialize tesseract.\n");return -1;}// Open input image with leptonica libraryPix* image = pixRead("E:/GitCode/OCR_Test/test_data/chi_sim_1.png");api->SetImage(image);// Get OCR resultchar* outText = api->GetUTF8Text();char gbk[256];utf8_to_gbk(outText, gbk);fprintf(stdout, "OCR output: %s\n", gbk);// Destroy used object and release memoryapi->End();delete api;delete[] outText;pixDestroy(&image);
}{ // english// Initialize tesseract-ocrtesseract::TessBaseAPI* api = new tesseract::TessBaseAPI();const char* datapath{ "E:/GitCode/OCR_Test/test_data/tessdata/" };if (api->Init(datapath, "eng")) {fprintf(stderr, "Could not initialize tesseract.\n");return -1;}// Open input image with leptonica libraryPix* image = pixRead("E:/GitCode/OCR_Test/test_data/eng_1.png");api->SetImage(image);// Get OCR resultchar* outText = api->GetUTF8Text();char gbk[256];utf8_to_gbk(outText, gbk);fprintf(stdout, "OCR output: %s\n", gbk);// Destroy used object and release memoryapi->End();delete api;delete[] outText;pixDestroy(&image);
}return 0;
}

????? ? 測試圖像如下：

????? ? 執(zhí)行結(jié)果如下：

????? ? GitHub：?https://github.com/fengbingchun/OCR_Test?

總結(jié)

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