
This files in this directory show sample difference image analysis.
The images used in these examples have a regular grid of bright stars,
no other contaminants, and use PS1_V1 PSFs.  Each jpeg represents a
specific difference pair.  Files ending in 'isis.jpg' used the ISIS
kernel (FWHM = 2,4,8), (Orders = 2,2,2).  Files ending in 'herm.jpg'
used the straight Hermitian kernel set (FWHM = 2.0), (Orders = 8).
Files ending in 'deco.jpg' used the deconvolved Hermitian kernel set
(FWHM = 3.7), (Orders = 8).  Note that the deconvolved Hermitian is
chosen to be close to the target PSF size, divided by sqrt(2).

diff.gg.02.01.herm.jpg -- both have round PSFs, FWHM of 1.3 and 1.0 arcsec (5.2 and 4.0 pixels)

diff.gg.03.01.herm.jpg -- 03 has an axis ratio of 1.2, position angle of +30 and FWHM of 1.3 arcsec, 01 as above.

diff.gg.04.03.herm.jpg -- 04 has an axis ratio of 1.2, position angle of -30 and FWHM of 1.3 arcsec, 03 as above.

Files with 'dual' in the name used the dual convolution analysis.
Those with p0 had penalty set to 0.0, while those with p1 had penalty
set to 1.0.


