Automatic Image Registration

Version 1.0.0.0 (3.13 KB) by Kateryna Artyushkova
Using mutual information for users with no access to IP toolbox.
4.3
(11)
17.2K Downloads
Updated 22 Nov 2005

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Functions for aligning images by rotation and translation:
im_reg_MI.m
MI2 - calculating Mutual information
joint_h - calculating Joint histogram

Mutual information is calculated using joint histogram calculation between two images.

rotate_image.m function by Ohad Gal is used. DO NOT FORGET DOWNLOAD THE FILE:http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=4071&objectType=FILE

Users having access to IP toolbox can download image_registr_MI.zip which uses IMROTATE function and has an option to crop the image to save computation time.

For each angle of rotation all translation parameters are checked.

NOTE - the images must have correct relative sizes with respect to each other (no resizing is incorporated in this registration)

Please e-mail if you have problems!

Cite As

Kateryna Artyushkova (2026). Automatic Image Registration (https://in.mathworks.com/matlabcentral/fileexchange/4534-automatic-image-registration), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R13
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Acknowledgements

Inspired by: Rotate Image

Version Published Release Notes
1.0.0.0

Add instruction to downlaod rotate_image file