Viking 1 color image created with camera 2 taken July 21, 1976 with SE view

This image was created by scanning the area three times using the Lander Camera #2 using a different color filter each time. To assist in balancing the colors, a second picture was taken of a test chart mounted on the rear of the spacecraft. Color data for these patches were adjusted until the patches were an appropriate color of gray to correspend with the chart. The same calibration was then used for the entire scene. Credit NASA P-17164