Automatic Image Registration using (Normalized) Mutual Information for users of IP toolbox

Rigid (translation and rotation) automatic registration of images using normalized mutual informati
25.5K Downloads
Updated 12 Jun 2006

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

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

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)

NOTE: image1 should be smaller that image2

Function allows to crop part of the image for registration to save computational time using IMCROP function.

For more help type:
help image_registr_MI.m

For users without IP toolbox download file im_reg_mi.zip without
% cropping option and with different rotation function

Please e-mail if you have problems!

Cite As

Kateryna Artyushkova (2024). Automatic Image Registration using (Normalized) Mutual Information for users of IP toolbox (https://www.mathworks.com/matlabcentral/fileexchange/4145-automatic-image-registration-using-normalized-mutual-information-for-users-of-ip-toolbox), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R13
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on Geometric Transformation and Image Registration in Help Center and MATLAB Answers

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Version Published Release Notes
1.0.0.0

An old file included in zip as was noticed by one of the users (see comments)