On 9/17/2010 10:38 PM, Mark Korver wrote:
I think your halos are blacks that are not pure black.
Not 0/0/0, just close.
Thanks so much for the link to bpederse's article. The simple addition
of OFFSITE 0 0 0 replicated the effect I wanted, and with his
fuzziness hack this will be even
Hey guys.
I have some NAIP imagery in MrSID format. It displays, but the black
area where counties meet is really ugly. The MrSIDs are 3 one-byte
bands: R/G/B The bands do not specify a NODATA but I figure that 0/0/0
(all black) may be usable as a NODATA value, via a PROCESSING directive.
I think your halos are blacks that are not pure black. Not 0/0/0,
just close. This is a compression artifact. I think the same thing
also happens with jp2 CCMs.
The NAIP CCMs/or County Compressed Mosaics were never meant to be
mosaicked together like this. They are a deliverable at the county
