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Best-Yet Look of Valles Marineris, Great video and fantastic stills
post Mar 14 2006, 12:17 PM
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- http://www.jpl.nasa.gov/news/news.cfm?release=2006-035 - Years of Observing Combined Into Best-Yet Look at Mars Canyon

- http://themis.asu.edu/vallesspecial - Valles Marineris Special Feature Directory

- http://www.nasa.gov/mission_pages/mars/mis...y/20060313.html - More Images


- blue_scape / Nico -
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post Jun 12 2006, 07:57 PM
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Melas Chasma in color:


I thought I would post the steps from the original image to my truer colour version.
Left: the original data as initially presented here

Middle: the results of laborious hand retouching on each colour channel to remove the light leaks which mar the performance of this otherwise excellent color camera. The violet channel in particular is horribly lightstruck to varying degrees in nearly all such images. Constant comparison with the original was done to minimize subjective retouching effects. The result attempts to emphasize the colour subtlties of the subject the camera is seeing and minimize the ideosynchrosies of the camera itself.

Right, the results of rebalancing the colour to resemble known ranges of Martian hues. This image was widely distributed. More image releases using this technique are forthcoming.

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post Jun 12 2006, 09:21 PM
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Amazing work, Don.
I hope you appreciate this further processing of last image, on the right (essentially a simple sharpening - I removed your intermadiate result)...
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