June 2019
Intermediate to advanced
348 pages
8h 28m
English
Content preview from Qt 5 and OpenCV 4 Computer Vision Projects
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Calculating the FPS
In the previous sections, we learned how to capture and play video using the video and videoio modules of OpenCV and the multimedia facilities provided by Qt. As I mentioned previously, in the rest of this chapter, we will process video by using the OpenCV library, and not the multimedia module of the Qt library. The Qt library will only be used for the UI.
Before saving the videos we captured from the webcams, let's discuss an important indicator of videos and cameras, the FPS, though, sometimes, it is called frame rate or frame frequency. For a camera, its FPS means how many frames we can capture from it in one second. If this number is too small, the user will perceive each frame individually instead of perceiving the ...
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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.
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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.