[OKGIS] NAIP 2004 and 2005 County mosaics comparisons

[Troy Frazier]

Hi everyone,

Just for kicks & grins, I compared the 2004 & 2005 aerials for Noble County. The 2005 SID is 160MB while the 2004 is 43MB. I'm guessing that the 2004's have then same 1:60 - 1:80 compression as the 1-meter 2003 and the 2005 currently have a much better compression of around 1:20. If you lokk at the 2004 & 2005 side by side, you will defenately see the different. Comparing 2003 & 2005, at 1"=400' they seem just a clear. You just can't zoom in much more, but the compression rate seems to make a big difference (maybe even more that 1-meter to 2-meter pixel size).


Sincerely,

Troy Frazier
Cartographer
Ad Valorem Division - Oklahoma Tax Commission
(405) 521-3178  or  tfrazier at tax.ok.gov-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gis.ou.edu/pipermail/okgis/attachments/20060306/739ade0b/attachment.htm