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Jpl's Bird's-eye View Of Rimrock Outcrop, Sol 652 to 663
SigurRosFan
post Jan 5 2006, 10:36 AM
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http://marsrovers.jpl.nasa.gov/gallery/pre.../20060104a.html - Bird's-Eye View of Opportunity at 'Erebus'


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Bill Harris
post Jan 8 2006, 12:51 PM
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QUOTE
"as seen by the eye on Mars" colors have to take into account...

Let's change that to "as photographed on Mars with a digital camera
white-balanced to whatever". This is equation confused by the unknown variable of human visual perception. You sit at your computer: the glow on your desk does not look bluish. Look around the room. It does not have the brownish tint of tungsten lighting. Go into the kitchen. You don't perceive the greenish fluorescent lamp hues. Go outside in late afternoon; you won't notice the warmish tones of the afternoon lighting. Get a digital camera, set the White Balance from 'auto' to 'daylight' or get a camera and put a roll of Ektachrome slide film in it. Photograph all those scenes. Develop/download and compare what the camera sees with what you saw.

What do you see?

--Bill


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- SigurRosFan   Jpl's Bird's-eye View Of Rimrock Outcrop   Jan 5 2006, 10:36 AM
- - Oersted   It looks so CLEAN! Fantastic image!   Jan 5 2006, 11:25 PM
|- - dilo   I made personal version (starting from the huge, f...   Jan 6 2006, 12:20 AM
|- - dilo   And this is the vertical close-up version (the off...   Jan 6 2006, 12:25 AM
|- - abalone   QUOTE (dilo @ Jan 6 2006, 11:25 AM)And this i...   Jan 6 2006, 12:42 AM
|- - ronatu   QUOTE (abalone @ Jan 5 2006, 08:42 PM) Stil...   Jan 6 2006, 02:21 AM
|- - ljk4-1   QUOTE (ronatu @ Jan 5 2006, 09:21 PM)Still to...   Jan 6 2006, 02:28 AM
||- - dilo   QUOTE (ljk4-1 @ Jan 6 2006, 02:28 AM)Or ...   Jan 6 2006, 02:53 AM
||- - ronatu   QUOTE (dilo @ Jan 5 2006, 10:53 PM)I suspect ...   Jan 7 2006, 03:37 AM
||- - ronatu   QUOTE (ronatu @ Jan 6 2006, 11:37 PM)Too quic...   Jan 7 2006, 03:42 AM
|- - abalone   QUOTE (ronatu @ Jan 6 2006, 01:21 PM)Still to...   Jan 7 2006, 11:52 AM
|- - ronatu   QUOTE (abalone @ Jan 7 2006, 07:52 AM)It must...   Jan 7 2006, 08:31 PM
- - abalone   What it also needs is brightening up a bit   Jan 6 2006, 12:38 AM
- - djellison   Just because it looked a certain colour in the ATL...   Jan 7 2006, 11:13 AM
- - djellison   Why would solar panels that have been exposed to m...   Jan 7 2006, 09:17 PM
- - dvandorn   And I'll echo my oft-repeated note, here, that...   Jan 8 2006, 12:58 AM
|- - Bob Shaw   QUOTE (dvandorn @ Jan 8 2006, 01:58 AM)And I...   Jan 8 2006, 02:25 AM
|- - JRehling   QUOTE (dvandorn @ Jan 7 2006, 04:58 PM)And I...   Jan 8 2006, 09:58 AM
- - djellison   But would you see white as white? there's a w...   Jan 8 2006, 03:04 AM
|- - ElkGroveDan   QUOTE (djellison @ Jan 8 2006, 03:04 AM)But w...   Jan 8 2006, 03:56 AM
- - abalone   I dont want to know what it will look like when i...   Jan 8 2006, 11:10 AM
- - Nix   Another JPL mosaic with a greenish overall hue is ...   Jan 8 2006, 12:00 PM
- - helvick   Nix, Temperature will have some effect on the non...   Jan 8 2006, 12:39 PM
- - Bill Harris   QUOTE "as seen by the eye on Mars" color...   Jan 8 2006, 12:51 PM
|- - djellison   QUOTE (Bill Harris @ Jan 8 2006, 12:51 PM)You...   Jan 8 2006, 01:00 PM
||- - Shaka   QUOTE (djellison @ Jan 8 2006, 03:00 AM)Actua...   Jan 8 2006, 08:55 PM
||- - Bob Shaw   The importance of human perception of colour on Ma...   Jan 8 2006, 09:28 PM
|- - Zeke4ther   QUOTE (Bill Harris @ Jan 8 2006, 08:51 AM)Let...   Jan 9 2006, 04:43 AM
|- - dilo   QUOTE (Zeke4ther @ Jan 9 2006, 04:43 AM)...   Jan 9 2006, 06:11 AM
|- - fredk   QUOTE (dilo @ Jan 9 2006, 06:11 AM)About Fred...   Jan 9 2006, 09:33 PM
- - fredk   While all this talk of the subjectivity of colour ...   Jan 9 2006, 01:44 AM
- - vikingmars   ... And, please, don't forget that : (i) the M...   Jan 10 2006, 09:49 AM


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