I haven't tried it but you could try Lets Enhance: "Powerful AI to increase image resolution without quality loss. 100% automatic and fast"

https://letsenhance.io/

Regards, Rob

Rob Penfold - Librarian
Mon-Wed
Health Sciences Library
Rockhampton Hospital
Central Queensland Hospital and Health Service

Address:    PO Box 4201 Rockhampton QLD 4700
Phone:      07 4920 6525 / 0432 892 724
Email:      [log in to unmask]
Library:    https://qheps.health.qld.gov.au/cqld/library  (Intranet)
CKN:        https://www.ckn.org.au/
CQ Health:  www.cq.health.qld.gov.au



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-----Original Message-----
From: Code for Libraries <[log in to unmask]> On Behalf Of Tim Spalding
Sent: Friday, 3 December 2021 5:02 AM
To: [log in to unmask]
Subject: Re: [CODE4LIB] Converting jpg or png to high quality

This email originated from outside Queensland Health. DO NOT click on any links or open attachments unless you recognise the sender and know the content is safe.
If the image is something that might exist at a higher resolution elsewhere, you can search for it at Tineye (https://tineye.com). This is a lifesaver if you have a small image of a painting or historical photo, or just a piece of it, and want something better.

Tim




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