Draw a triangle with centroid using OpenCV

Prerequisite: Geometric shapes using OpenCV Given three vertices of a triangle, write a Python program to find the centroid of the triangle and then draw the triangle with its centroid on a black window using OpenCV. Examples:

Input: (100, 200) (50, 50) (300, 100) Output: (150, 116)

Libraries Needed:

OpenCV Numpy

Approach: Create a black window with three color channels with resolution 400 x 300. Draw three lines which are passing through the given points using the inbuilt line function of the OpenCV. It will create a triangle on the black window. Find the centroid of the triangle using the following simple formula. [Tex] $$ (X, Y) = \Bigg\{\frac{x1+x2+x3}{3}, \frac{y1+y2+y3}{3} \Bigg\} $$ [/Tex] Draw this centroid on the black window using circle function of OpenCV with zero thickness. Below is the implementation of the above approach: Output:

(150, 116)