之前一直在用tesseract_3.0.2，由於專案需求，必須用64位編譯的tesseract庫；於是轉到4.0來了，編譯器用的是vs2015，tesseract 3.0版本和4.0有一個區別就是TessResultRenderer類的使用，下面給大家貼出本人呼叫tesseract 4.0庫的程式碼，如有問題還請大家多多指教！

#include <leptonica\allheaders.h>
#include <tesseract\baseapi.h>
#include <tesseract\renderer.h>
#include <iostream>

//環境要求: vs2015, tesseract 4.0
#pragma comment(lib, "libtesseract-4")

void main(int argc, char* argv[])
{
	
	const char* outputbase = "out";
	char* image = "1.jpg";
	tesseract::TessBaseAPI api;
	api.SetOutputName(outputbase);
	if (api.Init("./", "chi_sim", tesseract::OEM_DEFAULT))
	{
		std::cout << "Could not initialize tesseract!" << std::endl;
	}
	
	tesseract::TessResultRenderer* renderer = new tesseract::TessTextRenderer(outputbase);
	if (!api.ProcessPages(image, NULL, 0, renderer))
	{
		std::cout << "Error during processing!" << std::endl;
	}
	delete renderer;

	system("pause");
}