Phobos in HR (Enhanced Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

Caption ESA:"On July 23, 2008, the High Resolution Stereo Camera on board the ESA’s Mars Express took the highest-resolution full-disc image yet of the surface of the moon Phobos.
The image data were acquired from a distance of about 97 Km from Phobos' Surface, with a spatial resolution of about 3,7 mt/pixel, during orbit 5851.
These images have surpassed all previous images from other missions in continuous coverage of the illuminated surface at the highest spatial resolution of 3,7 mt/pixel".

This image has been geometrically corrected and exhibits the original illumination and photometric conditions".