At 23:59:34 UTC the Mastcam Right captured these beautiful “green mountains”, actually the inner rim of the Gale crater.
The sky on the horizon appears cloudy in this photo as well, except for a glimpse of blue sky visible in the upper right corner of the image.
Personally, I can’t stop staring at the green areas; such a shade of green hasn’t been observed in a while!
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.jpl.nasa.gov/msl-raw-images/msss/02657/mcam/2657MR0139020101103742C00_DXXX.jpg
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