Part 2: Generating Tesseract data

/*
ayoungprogrammer.blogspot.com

Part 2: Generating Tesseract data

*/

#include <iostream>
#include <fstream>
#include <windows.h>
#include "cv.h"
#include "highgui.h"


using namespace std;
using namespace cv;


int numOfFiles(char* searchPath)
{
    WIN32_FIND_DATA FindData;
    HANDLE      hFiles;
    LPTSTR      lptszFiles[100];
    UINT        nFileCount = 0;

    hFiles = FindFirstFile(searchPath, &FindData);

    if (hFiles == INVALID_HANDLE_VALUE)
        return 0;

    bool bFinished = false;
    while(!bFinished){
        if(!(FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)){
            nFileCount++;
        }

        if(!FindNextFile(hFiles, &FindData)){
            bFinished = true;
        }
    }
    FindClose(hFiles);
    return nFileCount;
}


int main(void){


    string fileName="mat.arial.exp0";
    cout<<"Output name: ";


    ofstream box("mat.arial.exp0.box");

    char cCurrentPath[256];
    GetCurrentDirectory(sizeof(cCurrentPath),cCurrentPath );


    string keys="()+0x123456789";
    Mat tiff  = Mat::zeros(1800,1200,CV_8UC3);
    Mat tiff2 = Mat::zeros(1800,1200,CV_8UC3);
    for(int j=0;j<keys.length();j++){

    stringstream fileOutput;
    if(keys[j]=='|')fileOutput<<cCurrentPath<<"\\output\\"<<"abs"<<"\\";
    else fileOutput<<cCurrentPath<<"\\output\\"<<keys[j]<<"\\";

    stringstream fileSearch;
    fileSearch<<fileOutput.str();
    fileSearch<<"*.jpg";


    cout<<fileSearch.str()<<endl;
    int n = numOfFiles((char*)fileSearch.str().c_str());
    cout<<n<<endl;
    float targetHeight = 50;
    int colDist = 0;
    for(int i=0;i<min(13,n);i++){
        stringstream filePath;
        filePath<<fileOutput.str();
        filePath<<i<<".jpg";
        Mat symbol = imread(filePath.str());

        float percent = targetHeight/symbol.size().height;
        if(percent*symbol.size().width>50){
            percent = targetHeight/symbol.size().width;
        }
        Mat resized;
        resize(symbol,resized,Size(),percent,percent);
        Mat small = tiff.colRange(75*i+50,50+75*i+resized.size().width).rowRange(75*j+50,75*j+resized.size().height+50);


        resized.copyTo(small);
        box<<keys[j]<<" "<<75*i+50<<" "<<tiff.size().height-(75*j+resized.size().height+50)<<" "
            <<50+75*i+resized.size().width<<" "<<tiff.size().height-(75*j+50)<<" 0"<<endl;

        Rect r = Rect(75*i+50,75*j+50,resized.size().width,resized.size().height);
        Mat small2 = tiff2.colRange(75*i+50,50+75*i+resized.size().width).
            rowRange(75*j+50,75*j+resized.size().height+50);
        resized.copyTo(small2);
        rectangle( tiff2, r.tl(), r.br(),Scalar(0,255,0), 2, 8, 0 );

    }

    }
    imwrite(fileName+".tif",tiff);
    box.close();


    waitKey(0);



}