I just started looking into the CHDK today. I was wondering whether it's possible to do any sort of image processing on what the camera sees, then triggering the shutter depending on what's in the image.
I did a quick search through the forums, but I haven't found anything particularly conclusive, and I'm not entirely sure the motion detection is capable of this sort of thing - as it waits for motion in a specific zone. For example, if I stood in front of the camera, could I get it to trigger by tilting my head, or making some kind of sign with my hands?
In essence, I was wondering whether it's possible to replicate the functionality that the LG G3 has - you show the camera an open hand, close it into a fist, and the camera begins a countdown timer before taking the picture, or even have it starting the camera's countdown on just seeing the open hand. I'd like to do this from anywhere that's visible to the camera, without it taking photos on any sort of motion without distinction.