AI engineering glossary · Computer vision
What is affine transformation of images?
Affine transformation of images: A geometric change of an image that keeps straight lines straight and parallel lines parallel, covering rotation, scaling, shearing and translation. It is expressed as a 2 x 3 matrix applied to pixel coordinates.
Affine transformation of images: an example
Rotating a scanned form by 5 degrees to fix a slight tilt is an affine transformation.
Related terms
- Interpolation
- Homography
- Data augmentation
More Computer vision terms
- AlexNet
- Anchor box
- Aspect ratio
- Average pooling
- Binary mask
- Bottleneck block
- Bounding box
- Canny edge detector
Where you learn it
Affine transformation of images is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.