alt Hacker NewsSending 4k screenshots twice a second to a server would be tremendously bandwidth hungry. My guess is that it's all done locally.
Sending 4k screenshots twice a second to a server would be tremendously bandwidth hungry. My guess is that it's all done locally.
There's probably compact signatures extracted from the screenshots (color profiles, OCR, etc) which are then uploaded later in bulk. You don't need the full original image to be able to reliably uniquely identify the content if you have an index of it already.