In the on-line version of the exhibition OCEAN PLANET (address:
<HTTP://seawifs.gsfc.nasa.gov/ocean_planet.html>), the images were
"degraded" by placing the exhibition's logo on the image, so it was almost
transparent (kind of like a watermark) but still clearly there.  I suppose
you could still download and use the images, but the logo is placed
prominently enough that any cropping or other alteration to get rid of it
would adversely affect the integrity of the images.

__________

Nicole M. Bouvier
Scheduling & Exhibitor Relations Coordinator
SITES
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