"I still see red as red, green as green, blue as blue and white as white. At least my brain compensates for the difference in light temperature"
Exactly!!! Incadesent lamps have lots of wavelengths. Florescent lights tend to be heavily weighted to UV due to the phosphor on the bulb and the fact that the gas inside them tends to have a more limited wavelength band. These actually created the light we see. But we don't see bluish objects around us, we see the color as we remember them to be!
I saw an extreme example of this effect in SF at the Exploratorium. They had 2 street lamps one Sodium Vapor and one Mercury Vapor. The Sodium Vapor Lamp puts out only one wavelength of light (Sodium light is the most pure outside of a laser) while the Mecury Vapor lamp puts out lots-o-wavelengths i.e. White light. Since we see light being reflected from an object, we can only see the frequencies available to us. Looking at a picture illuminated by Sodium will ONLY produce a greyscale image as there's only one wavelength to see, but our minds will interperet the greys as color. Until you look at 1/2 the picuture in Sodium and 1/2 in the Mercury Vapor lamp. All of a sudden that colored picture turned into the pure greyscale that it really was.
Now I cannot drive at night w/o thinking about that....keeps me properly freaked out!!
"They do that so that different elements of the image can be more easily identified"
There's another even more important reason...most of the colors are for wavelengths of light that could not be seen anyway.
The last time I checked I could not see UultraViolet, Infrared, or X-rays.
Anyway, the color dots on the lander SHOULD look different as the lighting conditions are different on Mars due to the scattering properties of that atmosphere. Colors under Flourescent lights like we all sit under are very different than those out in the sunlight. If the images from Mars had the color corrected to pure colors, it would not be a true representation of what we would see if we were standing there.
Slashdot Mirror
"I still see red as red, green as green, blue as blue and white as white. At least my brain compensates for the difference in light temperature"
Exactly!!! Incadesent lamps have lots of wavelengths. Florescent lights tend to be heavily weighted to UV due to the phosphor on the bulb and the fact that the gas inside them tends to have a more limited wavelength band. These actually created the light we see. But we don't see bluish objects around us, we see the color as we remember them to be!
I saw an extreme example of this effect in SF at the Exploratorium. They had 2 street lamps one Sodium Vapor and one Mercury Vapor. The Sodium Vapor Lamp puts out only one wavelength of light (Sodium light is the most pure outside of a laser) while the Mecury Vapor lamp puts out lots-o-wavelengths i.e. White light.
Since we see light being reflected from an object, we can only see the frequencies available to us. Looking at a picture illuminated by Sodium will ONLY produce a greyscale image as there's only one wavelength to see, but our minds will interperet the greys as color. Until you look at 1/2 the picuture in Sodium and 1/2 in the Mercury Vapor lamp. All of a sudden that colored picture turned into the pure greyscale that it really was.
Now I cannot drive at night w/o thinking about that....keeps me properly freaked out!!
"They do that so that different elements of the image can be more easily identified"
There's another even more important reason...most of the colors are for wavelengths of light that could not be seen anyway.
The last time I checked I could not see UultraViolet, Infrared, or X-rays.
Anyway, the color dots on the lander SHOULD look different as the lighting conditions are different on Mars due to the scattering properties of that atmosphere. Colors under Flourescent lights like we all sit under are very different than those out in the sunlight. If the images from Mars had the color corrected to pure colors, it would not be a true representation of what we would see if we were standing there.
Heisenberg May Have Been Here I might have been seen also ;-)