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Python Image Processing Cookbook

You're reading from  Python Image Processing Cookbook

Product type Book
Published in Apr 2020
Publisher Packt
ISBN-13 9781789537147
Pages 438 pages
Edition 1st Edition
Languages
Author (1):
Sandipan Dey Sandipan Dey
Profile icon Sandipan Dey
Toc

Table of Contents (11) Chapters close

Preface 1. Image Manipulation and Transformation 2. Image Enhancement 3. Image Restoration 4. Binary Image Processing 5. Image Registration 6. Image Segmentation 7. Image Classification 8. Object Detection in Images 9. Face Recognition, Image Captioning, and More 10. Other Books You May Enjoy

Robust matching and homography with the RANSAC algorithm

Random Sample Consensus (RANSAC) is an iterative non-deterministic algorithm for the robust estimation of parameters of a mathematical model from several random subsets of inliers from the complete dataset (containing outliers). In this recipe, we will use the skimage.measure module's implementation of the RANSAC algorithm. Each iteration of the RANSAC algorithm does the following:

  1. It selects a random sample of a size of min_samples from the original data (hypothetical inliers) and ensures that the sample dataset is valid for fitting the model.

  2. It fits a model (that is, estimate the model parameters) to the sampled dataset and ensures that the estimated model is valid.

  3. It checks whether the estimated model fits to all of the other data points. Computes the consensus set (inliers) and the outliers from all of the...

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