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Putting Text, Rectangles and Circles on Images in OpenCV for Windows


In the video lesson above we show how to add text, rectangles and circles to video frames using OpenCV. Below we include the code with we developed in this lesson. Enjoy!

 

Python 3D Graphics Tutorial 5: Bouncing Ball Simulation in Visual Python

The program below is the code we developed in Lesson 5. It is a Vpython program that creates a 3D model of a marble bouncing in a box.

 

Python 3D Graphics LESSON 4: Understanding 3D Motion in Visual Python Model

In this lesson we show how to make an animated ball properly bounce off a wall using Visual Python (Vpython).

 

Faster Launch of WEBcam and Smoother Video in OpenCV on Windows


This is the code we developed in Video Lesson #6 showing how to launch a webcam quicker and with less delay in OpenCV running on windows. The video above explains the code step by step, but for your convenience, I include the code below.

 

Controlling a WEBcam in OpenCV on Windows

In this lesson we show how to move a frame in OpenCV, how to convert a color image to grayscale, and then how to display multiple video windows. For your convenience, I include the code below that we develop in this video.