April 2019
Intermediate to advanced
336 pages
8h 22m
English
Content preview from OpenCV 4 for Secret Agents - Second Edition
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Planning the Lazy Eyes app
Of all our apps, Lazy Eyes has the simplest user interface. It just shows a live video feed with a special effect that highlights motion. The parameters of the effect are quite complex and, moreover, modifying them at runtime would have a big effect on performance. Thus, we do not provide a user interface to reconfigure the effect, but we do provide many parameters in code to allow a programmer to create many variants of the effect and the app. Below the video panel, the app displays the current frame rate, measured in frames per second (FPS). The following screenshot illustrates one configuration of the app. This screenshot shows me eating cake. Because my hands and face are moving, we see an effect that looks ...
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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.