Motion magnication acts like a microscope for low amplitude motions in image sequences, i.e. imaging data cubes or videos. It articially amplifies small displacements making them detectable by eye or some automated technique. The code provided here is based on the two-dimensional Dual Tree Complex Wavelet Transform (DTCWT) and allows for magnifying transverse quasi-periodic motions of contrast features in image sequences.

The algorithm is designed to work with Extreme Ultraviolet imaging observations of the Sun made with Atmospheric Imaging Assembly onboard Solar Dynamics Observatory, but can be applied to any time sequence of images, i.e. an imaging data cube.

If you use my motion magnification code in your research, please, let me know and cite the paper describing it.

The code is implemented in Python 3 and requires NumPy and SciPy. The easiest way to get full scientific Python environment is to install the Python 3 version of Anaconda, which is available for Windows, Mac, and Linux. You also will need to install Dual-Tree Complex Wavelet Transform library for Python

from magnify import *
result = magnify_motions_2d(input_data, k, width)

Variable input_data must a 3D NumPy double array with the shape of [nt, ny, nx]. Where nt is total number of images, nx and ny are spatial dimentions. Due to the restrictions of the underlying DTCWT library, nx and ny dimensions must be even numbers. Result will be returned in the same format. k is the magnification factor and width is the phase smothing width, which must be larger than the time scale of the motion to be magnified.

data_magnified = magnify_2d(data, k, width)

Variable data must be a 3D double array with the size of [nx, ny, nt], where nx, ny are dimensions of a single image and nt is the number of images. Due to the restrictions of the underlying DTCWT library, nx and ny dimensions must be even numbers. The result will be returned in the same format. k is the magnification factor and width is the phase smothing width, which must be larger than the time scale of the motion to be magnified.