Colors still not correct.

Robert Clark — 1/25/2004 3:15:40 PM (archived)

This article from BBC news notes that released images from Spirit have
some colors altered from the correct values.
Not intentionally. The correct color calibration calculations haven't
been done yet. It notes the NASA logo color on the Spirit rover is altered from blue to
red.

Rover's stunning image of lander
Empty nest: The Columbia Memorial Station at Gusev Crater
http://news.bbc.co.uk/2/hi/science/nature/3418147.stm

The released color image from Opportunity also used the near-infrared filter L2 instead of red filter L4 in forming the Red, Green, Blue composited color image.
I looked at the released raw images and haven't found one that was taken using the red L4 filter by which you could form true color images.

Robert Clark

The whole thread (28 posts)

Color shot on the NASA channel... - Tom Brosz - 1/25/2004 10:19:40 AM
- re: Voila! - Raoul - 1/25/2004 11:04:50 AM
  - Did It Land In A Crater? - Mark Eby - 1/25/2004 3:55:41 PM
    - Duh Again, Need To Start On Older Posts (n/t) - Mark Eby - 1/25/2004 3:58:58 PM
  - Colors still not correct. - Robert Clark - 1/25/2004 3:15:40 PM
    - Oh, Shut Up! It has been explained to you several times! - R.L. - 1/25/2004 5:20:55 PM
      - It is easy to get an image with the right colors. Why not do it? - Robert Clark - 1/25/2004 5:50:15 PM
        
        re: It is easy to get an image with the right colors. Why not do it? - Johannes - 1/25/2004 7:32:09 PM
        
        It isnt easy, or even possible, Bob - R.L. - 1/25/2004 6:21:35 PM
        
        Oh, and here is an unrelated fact about the eye that I bet no one here will believe: - R.L. - 1/25/2004 6:27:46 PM
        
        Does that mean you would be happy with a digital camera that changed a blue NASA logo into red? (n/t) - Robert Clark - 1/25/2004 6:26:25 PM
        
        No, Bob- But the camera on the rover is not for holiday snapshots - R.L. - 1/25/2004 6:48:28 PM
        
        PART of the reason for putting filters on the rover in the visible spectrum is the public giving the colors of Mars. - Robert Clark - 1/25/2004 7:03:55 PM
        
        Chlorophyll is far more unmistakeable in the 'invisible' part of the spectrum - R.L. - 1/25/2004 7:19:08 PM
        
        There are some type of lichen for which chlorophyll is not visible. - Robert Clark - 1/25/2004 7:49:32 PM
        
        Bob, you need more patience. - Tom Brosz - 1/25/2004 8:33:49 PM
        
        So you think white is a spectral color? (n/t) - R.L. - 1/25/2004 7:11:43 PM
        
        An example for Bob - R.L. - 1/25/2004 6:57:35 PM
        
        re: An example for Bob - Johannes - 1/25/2004 7:59:12 PM
        
        and another - R.L. - 1/25/2004 7:09:52 PM
        
        I agree that a camera can pick more detail than the human eye. - Robert Clark - 1/25/2004 8:00:07 PM
        
        Again, you moron.... - R.L. - 1/25/2004 8:40:26 PM
        
        Gee, Bob- maybe they are busy doing real science? - R.L. - 1/25/2004 5:58:59 PM
        
        It's JUST as easy to release the correct color image as the wrong one. (n/t) - Robert Clark - 1/25/2004 6:15:21 PM
        
        No it isnt- see above (n/t) - R.L. - 1/25/2004 6:51:05 PM
        
        Polly want a cracker! Polly want a cracker! (n/t) - Polly - 1/25/2004 5:58:09 PM
        
        Right back at ya, bud. (n/t) - Robert Clark - 1/25/2004 6:18:45 PM
  - re: Voila! - Tom Brosz - 1/25/2004 11:27:15 AM

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