macOS How to recognise images in other windows - card games

[jimbojammy85]

Hi All!

Im hoping anyone might be able to point me in the right direction for a poker math program I am writing please...

Basically, when we play poker online, I am writing an application to automatically calculate pot and card odds and probabilities.

The game logic I have written, however, I cannot figure out how to make my app recognise images of the cards on my poker window.

I was initially thinking to get my app to screenshot an image of the window and then compare the cards images with a picture of a spade, diamond, heart and club - but Im not even sure how to do this.

Would anyone have any suggestions please?
Thanks,
J

 

[teagls]

What you are trying to do is image matching. Use OpenCV. There are lots of ways to do the image analysis. Histogram matching is a very straight forward and easy thing to do. You take a histogram of the color intensities of a known image like spade and then compare it to what you are trying to match.

The other more robust option is using SIFT or Scale-Invariant Feature Transform. This is fully supported in OpenCV and fairly easy to do.

http://docs.opencv.org/master/da/df5/tutorial_py_sift_intro.html#gsc.tab=0