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At 21:17:28 UTC Mastcam Right captured this beautiful ridge of blue rocks, with a red ridge in the distance and a clear blue sky interrupted by a long white cloud on the horizon.
In the red ridge in the background, the lower left part of the photo, you can see several dark “flows” that look a lot like the famous RSLs (acronym for Recurring Slope Lineae, see but smaller.
The white cloud on the horizon is also a clear indication that the humidity is rising with increasing temperature, thus leading to the formation of clouds of water ice crystals in the upper atmosphere.
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:

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