Space Probes

Venus Express

Venus Express images processed to approximate real color. Channels were balanced this way:

Venus Express Human vision
0.3 x NIR1 + 0.7 x VIS = 0.3 x 965 + 0.7 x 513 = 649 650 (Red)
0.5 x NIR1 + 0.5 x UV = 0.3 x 965 + 0.7 x 365 = 545
(or when possible) VIS = 513
510 (Green)
0.5 x VIS + 0.5 x UV = 0.5 x 513 + 0.5 x 365 = 439 440 (Blue)

Raw data was available here, and the original image credits are: ESA / MPS, Katlenburg-Lindau, Germany

Images seem to show the venusian atmosphere extending from the limb with a bluish color. The general tone of the planet is yellowish, in accordance to similar processing I've done with Mariner 10 images, available on this site. The brightest clouds are bluish, given that they reflect strongly on the UV parts of the spectrum.

Venus Express images in aproximate real color

Camera data

Camera system data

Resolution: 1032 × 1024 pixels
Sensor: CCD

Filters

NIR2 (1010)
NIR1 (965)
VIS (513)
UV (365)