[Almasci] Re: [mmaimcal]Re: Comment in ALMA memo 489

[Bryan Butler]

mark,

do you mean that the CLEAN components are weighted by the mask value,
or that it it treated in the way that stephane noted would be good - i.e.,
that the "mask" is used to determine the probability of finding a
CC at a particular location?

i guess i'm confused about just how a mask works in practice when
its values are not 1 or 0...

	-bryan


On 2004.04.07 10:03, Mark Holdaway wrote:
> 
> Perhaps this helps:  in AIPS++, the mask need not be [0|1], but can be
> anywhere in between -- so the edge of the PB Mask can be dithered, or, 
> whatever it is called when you make the jagged edge of a diagonal line 
> look smooth by giving the pixels on the edge some appropriate value
> between 0 and 1.  Then again, perhaps I am misunderstanding you
> entirely?
> 
>    -M
>