Image Alignment Algorithms - Part II

// Module: auxfunc.h
// Brief:  
// Author: Oleg A. Krivtsov
// Email:  olegkrivtsov@mail.ru
// Date:  March 2008

#ifndef __AUXFUNC_H__
#define __AUXFUNC_H__

#include "cv.h"

void init_warp(CvMat* W, float wz, float tx, float ty, float s);

void warp_image(IplImage* pSrcFrame, IplImage* pDstFrame, CvMat* W, float step=1.0f);
void draw_warped_rect(IplImage* pImage, CvRect rect, CvMat* W);

/*
 *  Helper macros for getting/setting CvMat elements.
 */

#define SET_VECTOR(X, u, v)\
	CV_MAT_ELEM(*(X), float, 0, 0) = (float)(u);\
	CV_MAT_ELEM(*(X), float, 1, 0) = (float)(v);\
	CV_MAT_ELEM(*(X), float, 2, 0) = 1.0f;

#define GET_VECTOR(X, u, v)\
	(u) = (int)CV_MAT_ELEM(*(X), float, 0, 0);\
	(v) = (int)CV_MAT_ELEM(*(X), float, 1, 0);
	
#endif //__AUXFUNC_H__