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mrtesseract.hpp
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#ifndef MRTESSERACT_H
#define MRTESSERACT_H
#define TESS_WITH_OPENCV 1
#include "baseapi.h"
#include "string"
#ifdef _WIN32
#if _DEBUG
#if TESSERACT_VERSION>=0x040000
#pragma comment(lib,"tesseract400d.lib")
#else
#pragma comment(lib,"libtesseract304d.lib")
#pragma comment(lib,"liblept171d.lib")
#endif
#else
#if TESSERACT_VERSION>=0x040000
#pragma comment(lib,"tesseract400.lib")
#else
#pragma comment(lib,"libtesseract304.lib")
#pragma comment(lib,"liblept171.lib")
#endif
#endif
#endif
#if TESS_WITH_OPENCV
#include "opencv2/opencv.hpp"
#else
#include "allheaders.h"
#endif
#ifdef USE_ENG_DATA
const char* langname = "eng";
#else
#define TESSERACT_PASSPORT 1
#if TESSERACT_PASSPORT
const char* langname = "eng";
#endif
#endif
class MRTessNumRecognier
{
public:
static MRTessNumRecognier *getInstance()
{
static MRTessNumRecognier instance;
return &instance;
}
#if TESS_WITH_OPENCV
std::string recog(const cv::Mat &img)
{
std::string str = "";
if (inited==0&&img.data)
{
api.Clear();
api.ClearAdaptiveClassifier();
api.SetImage((uchar*)img.data, img.cols, img.rows, img.channels(), img.step);
char*ocrresult = api.GetUTF8Text();
str = ocrresult;
delete[]ocrresult;
}
return str;
}
#endif
private:
tesseract::TessBaseAPI api;
int inited = -1;
MRTessNumRecognier(){
inited = api.Init("./", "eng");
api.SetVariable("tessedit_char_whitelist", "0123456789");
api.SetPageSegMode(tesseract::PSM_SINGLE_CHAR);
}
~MRTessNumRecognier()
{
api.End();
}
};
class MRTessChineseRecognier{
public:
static MRTessChineseRecognier *getInstance()
{
static MRTessChineseRecognier instance;
return &instance;
}
#if TESS_WITH_OPENCV
std::string recog(const cv::Mat &img)
{
std::string str = "";
if (inited == 0 && img.data)
{
api.Clear();
api.ClearAdaptiveClassifier();
api.SetImage((uchar*)img.data, img.cols, img.rows, img.channels(), img.step);
char*ocrresult = api.GetUTF8Text();
str = ocrresult;
delete[]ocrresult;
}
return str;
}
#endif
private:
tesseract::TessBaseAPI api;
int inited = -1;
MRTessChineseRecognier(){
inited = api.Init("./", "chi_sim");
api.SetPageSegMode(tesseract::PSM_SINGLE_CHAR);
}
~MRTessChineseRecognier()
{
api.End();
}
};
class MRTesseract
{
public:
static MRTesseract *getInstance()
{
static MRTesseract instance;
return &instance;
}
#if TESS_WITH_OPENCV
std::string recog(const cv::Mat &img)
{
std::string str = "";
if (inited == 0 && img.data)
{
api.Clear();
api.ClearAdaptiveClassifier();
api.SetImage((uchar*)img.data, img.cols, img.rows, img.channels(), img.step);
char*ocrresult = api.GetUTF8Text();
str = ocrresult;
delete[]ocrresult;
}
return str;
}
std::string recog(const std::string filepath)
{
std::string str="";
cv::Mat img=cv::imread(filepath);
if(!img.data)
return str;
else
return recog(img);
}
#else
std::string recog(const std::string filepath)
{
Pix* pixs = pixRead(filepath.c_str());
if (pixs == NULL)
{
std::cout << "cannot load " << filepath << std::endl;
return "";
}
api.SetImage(pixs);
std::string ret = api.GetUTF8Text();
pixDestroy(&pixs);
return ret;
}
#endif
private:
MRTesseract()
{
#ifdef USE_ENG_DATA
inited=api.Init("./", "eng");
api.SetVariable("tessedit_char_whitelist", "0123456789");
#else
#if TESSERACT_PASSPORT
inited = api.Init("./", langname);
#else
api.SetVariable("tessedit_char_whitelist", "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ<");
#endif
api.SetPageSegMode(tesseract::PSM_SINGLE_CHAR);
#endif
}
tesseract::TessBaseAPI api;
int inited = -1;
~MRTesseract()
{
api.End();
}
};
#endif