[Red Steel]

Here's some sanity. That link explains artifacts caused by compression over the whole image, and not localized areas that are in dispute in Obama's COLB. The words that are blurred on the .jpg images in that link's examples are caused by compression, but that does not explain the haloing around the text images on Obama's COLB.

From all the withering criticism the DailyKooks received over their Obama COLB it's a wonder why they did not rescan their image to improve it. But in all probability, the DailyKooks.org did not have anything to scan in the first place so they could not.

[BrerLion]

the haloing around the text images on Obama's COLB

I offered an image for discussion, in post 295. Just so I know exactly what image(s) your are referring to, could you specify? I will indeed look again.