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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Selecting masks on the UI
In the previous sections of this chapter, we have done much work to detect faces and facial landmarks in the video feed from a webcam in real time. In that process, we drew circumscribe rectangles around the faces, drew facial landmarks as 2-pixel circles on the faces, and applied 3 different masks to the faces. That way teaches us a lot about face recognition using OpenCV, but from the perspective of the users, that's too much to draw on the faces. So, in this section, we will give our users a chance to select which marks or masks to draw on the detected faces through the checkboxes on the user interface—we will add five checkboxes on the main window under the shutter button for that.
Before changing the user interface, ...
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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.
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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.