(05-31-2021, 03:41 PM)Krikor Wrote: Hi folks,
The user wishes to rescan the image he now has in hand.
What would be the best setting to get the best quality to make the text readable?
Resolution of the image at the moment: 8592 x 12420
Thx.
If it's a scan, then he needs a better scanner, because the image is blurry. For a while I thought it was a bad camera or that the image was upscaled (because there aren't that many 100MPx cameras, and people who have one usually don't go to amateur forums asking for help).
So, if this is scanned, it has to be scanned at the real best resolution of the scanner (ie, one where there is no software upscaling), which can be found by scanning sharp text (for instance, a page from a magazine) at increasing resolutions. And possibly do several scans, with several brightness levels. And if the scanner is good enough, do two scans after rotating the image by 180° so that the paper texture can be eliminated.
JPEG is fine, but 1) quality 70 is a bit low (90 is OK) and 2) to avoid losing any data there should be no chroma sub-sampling.