That is good challenge for ocr botters
few minds.
1. If they change picture a little (few pixels) - not enought to peoples get stress, but enought to broke any tablemap. -> I have long been ready for this. good ocr it is not just pixel compare.
2. When somthing strange happen on a table - first what you need is image of it to analize what happens and if investigation is started. This room are to stupid, and update new graficks to all clients, so you can watch anytime if somthing changed. But when they be a little clever they will change current hand, and then change it back. Are you soft able to save last frames?
My - yes and long ago 3. Main problem that rooms try to solve - is compare bots are runing (+ rake, but - reputation) and a force (power, hours, money) they want to spend to fight botters.
Big rooms like pokerstars, whitch realy fight against bots - newer will say how they do it. Every banned account and letters - no one details here or proof. And it is realy reasonly, if you realy want to beat them. But this article describes how they already (in stupid way) fight the bots, and how they will do it in future. They already got their goal (+ reputation) -> no need to spend mutch money in this direction more.