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Originally posted by newagent89
The thing about these pictures is: if you apply the same true-color filter to a reddish image on earth, you get the same result: A bluish-white sky and a more neutral ground. That doesn't debunk the occasional red sky or red environment here on earth. The reason that the sky is so brownish on Mars is because so much of it is dusty. That plays a huge role in what the rover sees. Also, the wind storms there are quite frequent, more frequent than tornadic events in a given area on earth. That is why dust is such a problem with the rover and not as much of a problem with solar panels on earth. The dust has a ton of copper oxide particles in it and so many images are red. If the dust is down, the sky is more gray-bluish. These ideas that because a filter makes the planet look habitable and thus there is a cover up don't hold up. Sounds like the speculation that the moon had a ancient civilization living on it from the late 1800s.
Originally posted by Deaf Alien
I am studying on how to colorize Mars photos. I want to try my hand on it
I am studying this right now.
Originally posted by newagent89
All of this about the air being breathable and the 'blue' sky producing rain is mere speculation (Though there is snow!). I've already said that this true color thing can apply to red environments here on earth, but is that red just pretend red? Because when you apply a filter it looks like it could also be a picture taken here on earth? Does that mean that red skies are a conspiracy to make the earth look uninhabitable? The moon looked desolate when we sent probes, but, just like Mars, we wanted to go there. NASA is not trying to make it look uninhabitable. In the long range, they want to send people there. In the longer range: a lot of people. That is the long range point of NASA: to pave the way for mankind to spread out through and better understand the cosmos. Not to scare us into staying here on earth, that would deny the spirit and the romantic danger of exploration. Basing mistrust of NASA on a phenomena in coloring that could "debunk" sunsets here on earth is preposterous. To believe that sort of stuff requires one to change their viewpoints on many things, often from a speculative point of view. Then they get wrapped up in a belief in a huge NWO conspiracy belief which inhibits their usefulness the real world and stops progress and rational thought.
Originally posted by RFBurns
Yes that is true. The rover and probes do get dust on them, as seen in the photo Deaf Alien posted. But if you look very closely at his picture, you can still see some white in the white ring around the sundial. This is enough to get a close whte balance by simply adjusting so that the ring is as white as you can make it. Then once that is done, you can then further analyze the color chart reference tabs and see if they turn out a red, green and blue color, which if you look at my white balanced adjusted image of Deaf Alien's picture, that is what we get.
And the wind doesnt always blow or blow enough to kick up dust onto the rovers. And when the rovers do get dust on them, wind comes along again and blows all that dust off. Spirit's solar pannels once got saturated with the dust, so much that it jepordized the extended mission because the batteries were not getting enough charge from the soler panels. But a couple of days later, using the panoramic camrea, NASA noticed and verified thru telemetry data, that the rover was getting power again and the panoramic camera showed that the solar pannels were cleared of dust.
So yes in some photos where there is a huge amount of dust, you may not get a proper white balance. But that is true with cameras and images and video here on Earth, when you try to take a picture outside in a dust storm. The resulting image will be brownish from the dust and dirt all over the place.
Originally posted by spitefulgod
Back from crimbo shopping
Isn't the sky blue because of the elements of nitrogen (78.08%) and oxygen(20.95%), Martian atmosphere is comprised of nitrogen (3.6%) and oxygen (trace) so I don't see how it can ever be blue. The elementary make up of mars atmosphere is available from multiple sources (not just nasa) via landings and spectral analysis.
Please explain how the atmosphere can appear blue? What process is in affect?
[edit on 11/12/2008 by spitefulgod]