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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Mat
The Mat class is one of the most important classes in the OpenCV library, and its name is short for matrix. In the sphere of computer vision, any image is, as we mentioned previously, a matrix with a given width, height, number of channels, and depth. Therefore, OpenCV uses the Mat class to represent images. In fact, the Mat class is an n-dimensional array that can be used to store single or multiple channels of data with any given data type, and it contains many members and methods to create, modify, or manipulate it in many ways.
The Mat class has many constructors. For example, we can create an instance of it that has a width (columns) of 800, and a height (rows) of 600, with three channels that contain 8-bit unsigned int values, as ...
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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.