header_overlap

image_registration.FITS_tools.fits_overlap.header_overlap(hdr1, hdr2, max_separation=180, overlap='union')

Create a header containing the exact overlap region between two .fits files

Does NOT check to make sure the FITS files are in the same coordinate system!

Parameters:

hdr1,hdr2pyfits.Header

Two pyfits headers to compare

max_separationint

Maximum number of degrees between two headers to consider before flipping signs on one of them (this to deal with the longitude=0 region)

overlap: ‘union’ or ‘intersection’

Which merger to do