(intended for extended emission, not stellar images!)
Documentation: http://image-registration.rtfd.org
pip install image_registrationorgit clone https://github.com/keflavich/image_registration
from image_registration import chi2_shift
from image_registration.fft_tools import shift
import image_registration
#Generate Sample Image
image = image_registration.tests.make_extended(100)
offset_image = image_registration.tests.make_offset_extended(image, 4.76666, -12.33333333333333333333333, noise=0.1)
#Get Fused Image
xoff, yoff, exoff, eyoff = chi2_shift(image, offset_image)
corrected_image2 = shift.shiftnd(offset_image, (-yoff, -xoff))-
Borrows heavily from http://www.mathworks.com/matlabcentral/fileexchange/18401-efficient-subpixel-image-registration-by-cross-correlation/content/html/efficient_subpixel_registration.html
-
Replicates much of the functionality of http://www.astro.ucla.edu/~mperrin/IDL/sources/subreg.pro
Also implements http://solarmuri.ssl.berkeley.edu/~welsch/public/software/cross_cor_taylor.pro
