How did we create the Mars map?
1. Data gathering: This is a digital terrain model, visualized from MOLA's raw data. Shades of grey represent elevation.
2. Rendering the surface: Computer simulated light rays generate surface highlights and shadows. This map utilizes a multi-directional hillshade algorithm which produces a very detailed surface.
3. Putting it all together: The layers are merged using a combination of pan-sharpening, contrast, and gamma stretching algorithms. Together, these techniques bring out the nuanced details inherent in the source data.