Detect cards dealt in Blackjack game

[adroitfulone]

I am currently trying to detect the cards being dealt to me in a blackjack game, but am having problems with detecting them. I understand that you can do this through pixelchecksum but this would take way too long with 4 different suites and 14 different cards with each suite. I was thinking that you could take a screenshot of all of the cards corners and compare the images, but nowhere do I see anything that will allow me to do this. Now, what I am asking is if there is an easier way to accomplish this task and if not, maybe for some help with the pixelchecksum for all of those suites.