Now we may want to "align" a particular image at the same angle as the reference image. In the images above, the first image can be assumed to be the “perfect” cover photo, while the second and third images are not very well suited for book cover photos. The image registration algorithm helps us align the second and third images in the same plane as the first.
How does image registration work?
Alignment can be thought of as a simple coordinate transformation. The algorithm works as follows:
BFMatcher.match ()retrieves the best match, while
BFMatcher.knnMatch ()retrieves the top K matches, where K is specified by the user.
Image registration applications —
Some of the useful image registration applications include:
Below is the code to register an image. We have aligned the second image with a link to the third image.
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