I think nasa has got the art of obfuscation down to an art form. It really seems their graphic designers are second to none when it comes to displaying objects in Curiosity photos blurry and non-detailed whether they are large or small. Whether they are close up in the photo or further away. This skill they show time and time again with out exception. I think it takes a master to do this time and time again.
It almost seems that when I find objects I think maybe Nasa slipped up. It seems they will release anomalies, artifacts and sculptures when they want, where they want and how they want on their time period. And their graphic designers have to meet strict requirements and time periods in which to release the photographed anomalies, especially when they are detailed with imprints showing etc.
It seems without exception of a few thousand selected camera shots, most of the images nasa puts out are pretty blurry whether close up or far away, I think intentionally. I really think there is a time sequence when to release fully the fact that there is a martian civilization underground on mars. And that cold be years away!
Nasa does the release of this information through their photos very slowly and methodically. It almost seems like they have a very strict image-data sequence that they go by from Monday to Sunday etc. Maybe never saying anything about it, just letting us do the talking, They can do the nudging with their photos. And nudging they certainly do because the artifacts, sculptures and anomalies simply can't be denied even if most are incredibly blurry, whether the objects are large or small. Whether through the mascam, hazard cams, nav cams orbiters etc.
To make a long story short. You seem them close, you really can't tell what they are. You seem them far away you get baffled too!
The analysis I use for the photos and imagery are not mean't to be exacting, only to get you closer to understanding that there is intelligent life on mars (martians). Many of the rocks you may think are rocks, are in fact highly designed sculptures, mechanical objects etc.
Nasa is trying to leak out anomalous imagery with out of course talking about it public! Though most images have been doctored, Nasa is trying to humbly and quietly nudge us along with out going too public about it vocally. Though it is work and painstaking effort to find objects in the images that have not been altered in some way!