问使用OpenCVs findTransformECC查找与OpenCVs一起应用的仿射变换，warpAffine不会像已使用的那样返回相同的翘曲矩阵。

EN

Point2f srcTri[3];
Point2f dstTri[3];
float scale = (float)1 / (float)255;

//Matri for first affine transform
Mat warp_mat(2, 3, CV_32FC1); 
//Matrix for back affine transform
Mat warp_mat2 = Mat::eye(2, 3, CV_32FC1);


Mat src, warp_dst, warp_rotate_dst;


//Get Image from Image class and convert it to 8 bit which is used by 
//findtransfromsEcc
this->DemosaicedDestination.convertTo(src, CV_8UC1, scale, 0);


//container for warp destination
warp_dst = Mat::zeros(src.rows, src.cols, CV_8UC1);


//Points for warp matrix
srcTri[0] = Point2f(0, 0);
srcTri[1] = Point2f(src.cols - 1, 0);
srcTri[2] = Point2f(0, src.rows - 1);

dstTri[0] = Point2f(src.cols*0.0, src.rows*0.33);
dstTri[1] = Point2f(src.cols*0.85, src.rows*0.25);
dstTri[2] = Point2f(src.cols*0.15, src.rows*0.7);


//get the affine transformation warp mat
warp_mat = getAffineTransform(srcTri, dstTri);
//Do the affine transformation
warpAffine(src, warp_dst, warp_mat, warp_dst.size());

//show affine transformation
imshow("src", src);
waitKey(0);

cout << "warp matrix used: " << warp_mat << endl;
namedWindow("warped to ", WINDOW_NORMAL);
imshow("warped to",warp_dst);

TermCriteria criteria(TermCriteria::COUNT + TermCriteria::EPS, 2500, 1e-1);
try{
    this->cc = findTransformECC(warp_dst, src, warp_mat2, MOTION_AFFINE, criteria);
}
catch (Exception& e){
    const char* err_msg = e.what();
    cout << err_msg;
    return false;
}


//Do the affine transformation back
warpAffine(warp_dst, src, warp_mat2, src.size());


//show backwarded afine transform
namedWindow("back warped transform", WINDOW_NORMAL);
imshow("back warped transform", src);
waitKey(0);


//show calculated matrix, should be the same was warp matrix used 
cout << "calculated warp matrix 1 " << warp_mat2 << endl;