September 2015
Intermediate to advanced
266 pages
5h 38m
English
Content preview from Learning OpenCV 3 Computer Vision with Python (Update)Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Using OpenCV to perform face detection
Unlike what you may think from the outset, performing face detection on a still image or a video feed is an extremely similar operation. The latter is just the sequential version of the former: face detection on videos is simply face detection applied to each frame read into the program from the camera. Naturally, a whole host of concepts are applied to video face detection such as tracking, which does not apply to still images, but it's always good to know that the underlying theory is the same.
So let's go ahead and detect some faces.
Performing face detection on a still image
The first and most basic way to perform face detection is to load an image and detect faces in it. To make the result visually meaningful, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.