Did some testing too after the discussion. I couldn't see any advantage
to the many step approach - except the adition of artifacts (or maybe
this is the whole advantage - if you can mistake them as being "details").
Leon Altoff wrote:
I tried this with Photoshop CS and I have to say I prefer the single
step enlarged image to the many step enlarged image. The many step
images were showing artifacts where the single step was smooth - for
people I prefer the bicubic smoother image to the bicubic sharper. I
ended up with 5 154meg images in Photoshop at the same time. I'm going
to buy more memory before I do it again.
