The last dozen or so images I processed were overly saturated, JPL filters are used at the extreme end <br />to extract all the information out of its images as they can. So in most cases we have to tone it down a bit.<br /> I had to darken, add contrast to them and change the hue, (if there not L4,L5,L6 filter images).<br /><br />Here are some images I had to unsaturated more fat than normal to the image after processing. <br />The discoloration of the rocks could mean that the images were taken on a windswept hill or one <br />exposed to solar radiation for eons, UV etc. or some form of lichen (moss). By the build-up of sand around<br /> the rocks I would guess that it is a windswept hill causing the discoloration. <br /><br />This leads to my next question, it takes a lot of energy to move sand, even fine grain soil, in the low<br /> atmosphere of Mars. Was the atmosphere on Mars much denser in the recent past than predicted?<br /><br /><br />2P157170898EFFAL5M1.1 <div class="Discussion_UserSignature"> Ron Bennett </div>