But the aliasing effects that Erik used as an example are not 'vision' (as a naming convention) induced, but rather stem from discrete sampling, and are very much predictable. Up to a certain degree they are also avoidable, if one understands the principles that cause them. Low-pass filtering (or over-sampling) is the key.
Bart, yeah, I understand what Erik is getting at. I'm just questioning whether or not such small-scale effects are worth avoiding. This is why I mentioned moire (I wish LL recognized my iPad's alternate "e" characters so I could use the proper accent symbol), an example of a larger-scale effect I do seek to avoid or at least minimize.
I also find it odd that folks tend to be concerned with artifacts when they concern spatial detail but much less so when it comes to demosaicing-induced tonality issues. Personally the latter don't bother me
much either, but it seems logical that both would be of equal concern to people who enjoy getting deep into the weeds of this stuff.
-Dave- (who, despite knowing that his hands are mostly empty space, still uses them for typing)