Dan Goods, artist at JPL, recently curated the Data + Art exhibit at the Pasadena Museum of California Art. (Show ran from January to April 2009.) As part of this exhibit is the crayon shaded printout of raw data from the Mariner 4 of the first image from Mars.
I like the very low tech solution to rendering the image, but I do find it a strange when compared to the processed image. Perhaps it’s because of the colors of the crayons used, but the colored image makes the image appear like a landscape. If this was a Viking image, I wouldn’t have thought anything was strange, but Mariner 4 was an orbiter. In the processed image, the planet doesn’t even appear to fill the entire frame.