Tag Archives: webcam

Webcam streaming, signals, and Computer Vision

In my previous blog post, I wrote about my webcam library, which I recently applied to an SDL application to show streaming pictures in an SDL frame, and it works pretty well. The code can be found in a branch on my GitHub.

When I posted about my webcam library on a social network, someone mentioned a C++ library that would do all the computer vision stuff I mentioned in the blog post. This library is called OpenCV. I took a quick look, and it seems very feature-rich. It is supposed to have a set of functions for accessing the webcam as well. I guess I should read more on motion analysis and object tracking, but first I’ll play with some of the basic features of OpenCV, such as image processing and image analysis.

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Simple webcam access in C

I have been wanting to write something that detects things in real-time, on images streamed from a webcam. People who have watched the RoboCop, Terminator, or Iron Man movies, will probably remember the rectangles or circles around objects in video, with a description next to it. While having a rectangle around my head would be a good start, I’d like my computer to also recognize other things, such as a book, a key or any other object. But to do this, I needed a simple interface to my webcam, so that I can say with one function that I want to read in a frame from the webcam.

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