#include "StdAfx.h"
#include "ImageRotation.h"
using namespace cv;
using namespace std;

CImageRotation::CImageRotation(int index_of_orentation,bool m_bBackRotate):m_nRotation(index_of_orentation),m_BackRotate(m_bBackRotate)
{
}


CImageRotation::~CImageRotation()
{
}

void CImageRotation::apply(cv::Mat & pDib,int side)
{
	if (m_nRotation==4)//自动文本方向识别
	{
	}
	else if (m_BackRotate&&side==1)//背面旋转180
	{  
		if (m_nRotation!=2)//旋转180度
		{
			if (m_nRotation==1||m_nRotation==3)//90°  -90°
			{
				transpose(pDib,pDib);
				flip(pDib,pDib,m_nRotation==1?0:1);
			}
			else
			{
				flip(pDib,pDib,0);
				flip(pDib,pDib,1);
			}
		}
	}
	else //zh
	{   
		if (m_nRotation==1||m_nRotation==3)//90°  -90°
		{
			transpose(pDib,pDib);
			flip(pDib,pDib,m_nRotation==1?1:0);
		}
		else if(m_nRotation==2)
		{
			flip(pDib,pDib,0);
			flip(pDib,pDib,1);
		}
}
}