Image Registration Based on FFT Algorithm
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Resource Overview
MATLAB-based FFT image registration with concise yet practical implementation, including test program for validation
Detailed Documentation
This MATLAB implementation utilizes Fast Fourier Transform (FFT) for efficient image registration. The compact yet powerful code features phase correlation methodology to determine spatial shifts between images. The algorithm operates by computing cross-power spectrum in frequency domain, followed by inverse FFT to locate peak coordinates representing optimal alignment parameters. The package includes comprehensive test routines that validate registration accuracy through controlled transformations and performance metrics. Key functions implement frequency domain processing with optimized matrix operations for handling various image formats and sizes.
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