Wow! 2 replies already! Thanks.

However I'm rather afraid I will exhaust your goodwill and patience by saying that, while I believe the whole collection of weird little shapes that the image/s of Hale show (the connected circles, completely differently sized "patches" etc etc) are the result of processing and are not real, I still do not understand why I cannot find similar effects in any of the other ESA images.

I noticed that the Hale image/s in question are labelled "in perspective" so I looked at many other (but not all, I admit) of the other similarily labelled images, all processed the same way by Neukum's team, but I can't find anything other than the kind of pixellation to be found in any jpeg image if you zoom in too much. These artefacts are completely different (or seem so to my uneducated eyes).

Maybe I'm just being thick, and I'm certainly very ignorant about jpegs, compression etc but I can't understand why the Hale image/s have these extra artefacts. Especially as they often seem to be larger in scale than many small details which seem to be imaged correctly and are checkable against the black and white un-modelled images (although this might be down to my ignorance on the technicalities and purely a red-herring).

Basically, I just want to see ONE other image with the same artefacts and I'll be happy. I'll be able to show it and say "there, see? happens all the time".

Here's a link to the HRSC project and how the camera works - if that helps at all.
http://berlinadmin.dlr.de/Missions/e...ameraeng.shtml