January 2018
Intermediate to advanced
268 pages
6h 20m
English
Content preview from OpenCV 3.x with Python By Example - Second Edition
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Affine transformations
In this section, we will discuss the various generalized geometrical transformations of 2D images. We have been using the function warpAffine quite a bit over the last couple of sections, it's about time we understood what's happening underneath.
Before talking about affine transformations, let's learn what Euclidean transformations are. Euclidean transformations are a type of geometric transformation that preserve length and angle measures. If we take a geometric shape and apply Euclidean transformation to it, the shape will remain unchanged. It might look rotated, shifted, and so on, but the basic structure will not change. So technically, lines will remain lines, planes will remain planes, squares will remain squares, ...
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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.