Michel Jullian wrote:
You could be right Stephen but don't you agree the outline of the
blimp looks quite unnatural? Much worse than ordinary image compression
artefacts I would say.
Oh man. I really looked at the blimp this time, and you're right -- at
high mag, it looks like the lower edge of the blimp is stuck to a jagged
strip of background that doesn't match what it's flying over.
Somebody at Google must have been bored. Looks like they cut it out of
someplace else and weren't too careful about getting the cut line right
up against the blimp.
Brother...
Come to think of it, maybe we should check the length. If this is a
satellite photo then the blimp and the ground can be taken to be in the
same plane, and the length of the blimp should be measurable by
comparison with stuff on the ground. If the blimp was snipped from a
different photo, OTOH, it may look too big or too small.
With good old Gimp, I measure the blimp as 196 pixels, and one side of
the divided highway as 29 pixels. If the lanes are 12 feet wide, so one
pair of lanes is 24 feet wide, then the blimp is 162 feet long.
A common Goodyear blimp, according to one website, is 130 feet long.
According to another site, the largest blimp flying in the U.S. today is
over 200 feet long. So, 162 feet is plausible for the length, and that
test is inconclusive...
Congratulations for your web site BTW!
Michel
