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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Designing the user interface
The first part of building an application is to define what the application will do. In this chapter, we will develop an image viewer app. The features it should have are as follows:
- Open an image from our hard disk
- Zoom in/out
- View the previous or next image within the same folder
- Save a copy of the current image as another file (with a different path or filename) in another format
There are many image viewer applications that we can follow, such as gThumb on Linux and Preview app on macOS. However, our application will be simpler than those in that we have undertaken some preplanning. This involved the use of Pencil to draw the wireframe of the application prototype.
Pencil is a functional prototyping tool. ...
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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.