i use 'calibrateCamera' opencv function for calibrating camera which gives intrinsic and extrinsic parameters. In Extrinsic Parameter it provide 3x1 Rotation and 3x1 translation matrix for each pattern. So my question is how to convert this 3x1 rotation matrix into R matrix which is R11 R12 R13 R21 R22 R23 R31 R32 R33
or how can i get roll, yaw, pitch angle for camera after getting 3x1 matrix.
I also saw opencv function 'Rodrigues' which convert 3x1 into 3x3 but that 3x3 matrix is symmetric matrix which is not R matrix.
Please help.