Tag Archives: openCV

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!

 

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.

 

Launch a Windows WEB Camera in Ten Lines of Code with OpenCV

In this lesson we show you step-by-step how to launch a WEB camera using OpenCV running on windows. In the video we show how to install OpenCV and how to write your first simple programs. Below is the code we developed in the video to launch the WEB cam.

 

AI on the Jetson Nano LESSON 62: Create a Streaming IP Camera from a Raspberry Pi Zero W

In this lesson we learn to make a streaming IP camera with a Raspberry Pi Zero W, and Raspberry Pi camera. The Pi will create a RTP stream, which can then be read by a Jetson Nano on the same network. We use OpenCV to read the frames on the NVIDIA Jetson Nano side.

This is the command to launch the Raspberry Pi camera, and start the RTP stream. This command works well for the Raspberry Pi Camera, version 1.

For the Version 2 Camera, I recommend:

This is the Gstreamer code on the Jetson Nano side to grab the RTP Frames. On host= below, be sure to use the IP address of your Raspberry Pi.