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Curiosity Rover Composites on GigaPan
7 years 1 month ago #10262
by Todd
Yes.
www.natureworldnews.com/articles/21821/20160509/blue-color-found-on-mars-dominates-the-other-side-of-the-red-planet.htm
They use an RGB Bayer filter, like most digital cameras, but those images are put through another broadband filter wheel. I don't have a definitive answer, but I think the combination of the broadband filter and the fact that both red and infrared have a longer wavelength, contribute to the initial color. I'm not sure why the DRCX and the DXXX versions look so different but I'm guessing they stack different filters for each final version. I can find a lot of schematics and tech info on the Mastcam filters themselves, but when it comes to finding the actual standard operating procedures for how they procure final images, not quite so easy.
www.nasa.gov/mission_pages/msl/multimedia/pia16799.html
Replied by Todd on topic Curiosity Rover Composites on GigaPan
Does Mars really have blue rocks?
Yes.
www.natureworldnews.com/articles/21821/20160509/blue-color-found-on-mars-dominates-the-other-side-of-the-red-planet.htm
They use an RGB Bayer filter, like most digital cameras, but those images are put through another broadband filter wheel. I don't have a definitive answer, but I think the combination of the broadband filter and the fact that both red and infrared have a longer wavelength, contribute to the initial color. I'm not sure why the DRCX and the DXXX versions look so different but I'm guessing they stack different filters for each final version. I can find a lot of schematics and tech info on the Mastcam filters themselves, but when it comes to finding the actual standard operating procedures for how they procure final images, not quite so easy.
www.nasa.gov/mission_pages/msl/multimedia/pia16799.html
7 years 1 month ago #10264
by Todd
Replied by Todd on topic Curiosity Rover Composites on GigaPan
They also use the ICER compressor application, this is a "wavelet-based image data compressor" they have used since the launch of the MER rover missions. During this process, they can add or remove noise. 
The ICER could shoulder a lot of responsibility for how the images appear like they do.
ipnpr.jpl.nasa.gov/progress_report/42-155/155J.pdf
The ICER could shoulder a lot of responsibility for how the images appear like they do.ipnpr.jpl.nasa.gov/progress_report/42-155/155J.pdf
7 years 1 month ago - 7 years 1 month ago #10273
by Glitch_Neo
Replied by Glitch_Neo on topic Curiosity Rover Composites on GigaPan
Some cool info there Todd, it's always good to get a bit of background info, even if that does add more "Research" to my ever expanding list of subjects to bone up on... I'm struggling with the geology side of the research, basically because it's so dull.... 
New Gigapan - 2 days fiddling and tweaking... fingers crossed
SOL 1375
www.gigapan.com/gigapans/203523
Source(s)
mars.jpl.nasa.gov/msl/multimedia/raw/?s=01375&camera=MAST_
www.midnightplanets.com/web/MSL/sol/01375.html
Pahrump Hills
Site 54/3036
SOL 1376
www.gigapan.com/gigapans/203525
Source(s)
mars.jpl.nasa.gov/msl/multimedia/raw/?s=01376&camera=MAST_
www.midnightplanets.com/web/MSL/sol/01376.html
New Gigapan - 2 days fiddling and tweaking... fingers crossed
SOL 1375
www.gigapan.com/gigapans/203523
Source(s)
mars.jpl.nasa.gov/msl/multimedia/raw/?s=01375&camera=MAST_
www.midnightplanets.com/web/MSL/sol/01375.html
Pahrump Hills
Site 54/3036
SOL 1376
www.gigapan.com/gigapans/203525
Source(s)
mars.jpl.nasa.gov/msl/multimedia/raw/?s=01376&camera=MAST_
www.midnightplanets.com/web/MSL/sol/01376.html
7 years 1 month ago #10275
by Todd
Replied by Todd on topic Curiosity Rover Composites on GigaPan
In a nutshell, I usually add the cyan photo filter first just to get a balance, you may need to use other cooling filters, depending on the exposure. I adjust the curves, without going too dark. Then I adjust the exposure and gamma settings, sometimes adding the cyan will make you loose density. I use brightness / contrast only if I need to. Then I color correct the image because generally it will be too cool. I adjust color in the shadows, midtones and highlights. Typically I add a little red and yellow, but it will depend on the image you're using and what photo filters have been applied. I think the cooling filters de-saturate the image somewhat, so I add saturation and maybe vibrance. Anytime you do that, you will have to remove color noise in the "reduce noise" filter. Then I use the "smart sharpen" filter function which performs a deconvolution stretch and sharpens the image. If the image is especially fuzzy, an unsharp mask adjustment can also be performed. Although the cyan filter is good at eliminating the excess red, the color itself still has to be balanced. 
7 years 1 month ago #10276
by Glitch_Neo
Replied by Glitch_Neo on topic Curiosity Rover Composites on GigaPan
Cheers Todd - Well I can honestly say I have not been doing that! lol I'll give your way a try and see what the result is.... They can't turn out any worse then my "Jaundiced" yellow images 
SOL 1115 Gigapan
www.gigapan.com/gigapans/203534
mars.nasa.gov/msl/multimedia/raw/?s=1115&camera=MAST%5F
www.midnightplanets.com/web/MSL/sol/01115.html
SOL 1115 Gigapan
www.gigapan.com/gigapans/203534
mars.nasa.gov/msl/multimedia/raw/?s=1115&camera=MAST%5F
www.midnightplanets.com/web/MSL/sol/01115.html
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