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Old 10-May-2008, 09:59 PM
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Joe Boy Joe Boy is offline
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Quote:
Originally Posted by 01101001 View Post
Almost certainly JPEG compression artifacts (Wikipedia).



See Wikipedia Discrete cosine transform (DCT):

And ponder two-dimensional DCT frequencies:


Somebody was either very sloppy or very deceitful with that Mars image.

Partake of Bad Astronomer: Are There Artifacts on Mars?
I am somewhat on the fence here. However, with all due respect, saying that somebody is very sloppy or deceitful with the image doesn't really prove anything. How are they sloppy and how are they deceitful? Why can it be replicated with little ado by my friend who is merely a graphics draftsman? Something just isn't right here. I looked that picture over with a magnifying glass. There is nothing random about that picture. It seems artificial and utile in some way. I would like to see someone show me any compression artifact that even closely resembles that picture. Thank you for the info. I will seriously study it. I have scanned the "worm" segment and was impressed. The "woo woo's" won't drag me off easily. (I hate your name, were your parents like, mathematicians or something??)

Last edited by Joe Boy : 10-May-2008 at 10:28 PM.
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