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将数学函数从Python转换为C++ 我试图把一些OpenCV代码从Python转换成C++,但有点丢失了。python是: if 0 < R[1,1] < 1: # If it gets here, the pose is flipped. # Flip the axes. E.g., Y axis becomes [-y0, -y1, y2]. R *= np.array([ [ 1, -1, 1], [ 1, -1, 1], [-1, 1, -1], ]) # Fixup: rotate along the plane spanned by camera's forward (Z) axis and vector to marker's position forward = np.array([0, 0, 1]) tnorm = T / np.linalg.norm(T) axis = np.cross(tnorm, forward) angle = -2*math.acos(tnorm @ forward) R = cv2.Rodrigues(angle * axis)[0] @ R C++中的NP.LIANG.NORM等价于? sqrt(T[0]*T[0]+T[1]*T[1]+T[2]*T[2])_Python_C++_Opencv - Fatal编程技术网

将数学函数从Python转换为C++ 我试图把一些OpenCV代码从Python转换成C++,但有点丢失了。python是: if 0 < R[1,1] < 1: # If it gets here, the pose is flipped. # Flip the axes. E.g., Y axis becomes [-y0, -y1, y2]. R *= np.array([ [ 1, -1, 1], [ 1, -1, 1], [-1, 1, -1], ]) # Fixup: rotate along the plane spanned by camera's forward (Z) axis and vector to marker's position forward = np.array([0, 0, 1]) tnorm = T / np.linalg.norm(T) axis = np.cross(tnorm, forward) angle = -2*math.acos(tnorm @ forward) R = cv2.Rodrigues(angle * axis)[0] @ R C++中的NP.LIANG.NORM等价于? sqrt(T[0]*T[0]+T[1]*T[1]+T[2]*T[2])

将数学函数从Python转换为C++ 我试图把一些OpenCV代码从Python转换成C++,但有点丢失了。python是: if 0 < R[1,1] < 1: # If it gets here, the pose is flipped. # Flip the axes. E.g., Y axis becomes [-y0, -y1, y2]. R *= np.array([ [ 1, -1, 1], [ 1, -1, 1], [-1, 1, -1], ]) # Fixup: rotate along the plane spanned by camera's forward (Z) axis and vector to marker's position forward = np.array([0, 0, 1]) tnorm = T / np.linalg.norm(T) axis = np.cross(tnorm, forward) angle = -2*math.acos(tnorm @ forward) R = cv2.Rodrigues(angle * axis)[0] @ R C++中的NP.LIANG.NORM等价于? sqrt(T[0]*T[0]+T[1]*T[1]+T[2]*T[2]),python,c++,opencv,Python,C++,Opencv,np.crosstnorm,forward是叉积: axis[0] = tnorm[1]*forward[2]-tnorm[2]*forward[1] axis[1] = -tnorm[0]*forward[2]+tnorm[2]*forward[0] axis[2] = tnorm[0]*forward[1]-tnorm[1]*forward[0] 没有一个可以直接使用cv::sqrt和cv::pow的方法,你能给我一个代码示例吗?使用或者直接执行如何?谢谢,我可以这样做吗?:cv::Vec

np.crosstnorm,forward是叉积:

axis[0] = tnorm[1]*forward[2]-tnorm[2]*forward[1]
axis[1] = -tnorm[0]*forward[2]+tnorm[2]*forward[0]
axis[2] = tnorm[0]*forward[1]-tnorm[1]*forward[0]

没有一个可以直接使用cv::sqrt和cv::pow的方法,你能给我一个代码示例吗?使用或者直接执行如何?谢谢,我可以这样做吗?:cv::Vec3d tvecNormtvecBest;cv::normalizetvecNorm,tvecNorm@是的,那应该有用。谢谢!这给了我:cv::Vec3d forward0,0,1;cv::Vec3d TtvecBest;cv::Vec3d tnorm=sqrtT[0]*T[0]+T[1]*T[1]+T[2]*T[2];cv::Vec3d轴;轴[0]=tnorm[1]*正向[2]-tnorm[2]*正向[1];轴[1]=-tnorm[0]*正向[2]+tnorm[2]*正向[0];轴[2]=tnorm[0]*正向[1]-tnorm[1]*正向[0];什么是C++:CV::VEC3D角= -2 *Math.ActoStimeNo.FooT?@不是Python中的数学运算符。是/运算符吗?据我所知,他们的意思是@是一个点积:tnorm@forward->tnorm[0]*forward[0]+tnorm[1]*forward[1]+tnorm[2]*forward[2]和角度必须是双角度:双角度=-2*acos tnorm[0]*forward[0]+tnorm[1]*forward[1]+tnorm[2]*forward[2]
sqrt(T[0]*T[0]+T[1]*T[1]+T[2]*T[2]) 
axis[0] = tnorm[1]*forward[2]-tnorm[2]*forward[1]
axis[1] = -tnorm[0]*forward[2]+tnorm[2]*forward[0]
axis[2] = tnorm[0]*forward[1]-tnorm[1]*forward[0]