2. Data entry. We took a picture of this customer's utility bill / bank statement / receipt / whatever. Now do we give it to human to identify relevant fields and manually type them into a spreadsheet, or do we have a computer automatically extract the business-relevant data? Or, heck, maybe that's too complex, but can we at least have a computer help--automatically filter out bad images, do perspective correction, highlight areas of interest, etc.? (This sort of thing is actually used in, e.g., digitizing census records; we don't trust handwriting OCR to be good enough on its own, but we trust it to automatically highlight relevant fields, in order, and provide a first-draft guess at the transcription to assist the human transcribers).
I could probably come up with a few more if I thought about it for a while, but those are the areas I've actually worked on recently.