At 03:48:48 UTC the Mastcam Right shot again the excavation in the rock called “Edinburgh”, after eight days since the last shot (see https://www.facebook.com/PianetaMarte.MdM/photos/a.1625578140858706/2831070830309425/).
In fact in the meantime have been made several shots at night with LED lighting, shots that at the moment are difficult for me to balance with the same accuracy as those taken in sunlight.
From the comparison with the last shot, you can see some noticeable settlements in the excavated material, as well as the intensification of greenish spots all around.
It’s really incredible to be able to observe color changes in such a short time!
Physical-chemical or biological interactions?
The original image is a black and white encoding of the Bayer mask that has been converted to color through a process called “debayering” or “demosaicing”. In addition, the photo has undergone noise reduction due to Jpeg compression, white balance and a slight increase in microcontrast and color saturation in order to make the colors more similar to what the human eye would see.
Original image: https://mars.nasa.gov/msl-raw-images/msss/02728/mcam/2728MR0142980001200512C00_DXXX.jpg
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