Aid convergence and image flatness EPSIN
"
error map"
into the astronomical map, which accumulates with each
subsequent iteration, preventing convergence and causing strong large-scale structures to
appear in the final map (typically ripples on the scale of the FLT filter). This parameter
attempts to counteract this by allowing a map to be specified which will be subtracted
from the astronomical map at the end of each iteration. At present, the dimensions of
this map must be identical to those of the real map. See also parameter "
epsout"
.
[undef
]