MATLAB: How can i measure a vector’s size, angle and direction that i found using Farneback’s method

Question

For this simple example of Farneback's method, how can i measure the vector's characteristics?

Answer 1

The flow variable output from estimateFlow function is of type opticalFlow and has all the information. You can access them using the dot (.) operator.

For e.g.

vx = flow.Vx;
vy = flow.Vy;
or = flow.Orientation;
mag = flow.Magnitude;