Is there any information on how to choose a compression quality for images uploaded. Obviously transmission size is an issue here, but at the same time, you wouldn't want to compromise on quality.
In my tests, I find it hard to see a measurable difference in OCR results, even between 10% quality and 100%. The results are different, at times (in terms of which blocks it interprets as text, and parts that result in gibberish in either case), and lower quality seems to cause more desperate (and futile) attempts to decode certain hard to decipher elements - but no actual mistake are made.
Is there a more definite answer from the professionals out there?