Malte Steiner wrote:
Hello
Two cameras would send their frames to two image stacks which contain say 30 frames (the more the better). The actual frame is subtracted from the last one and the resulting frame of this simple kind of movement-dedection would serve as a
should be possible with stock GEM modules, I did an simular installation
yes
with pix buffering and subtraction etc, but a single usb cam.
if you just want to get some simple movement detection there is [pix_movement] (and [pix_movement2] which does exactly that: subtract to (or more) subsequent (if this is the correct word) frames; so no need to get into the strangeness of [pix_buffer]...
My only concern is connectig 2 cameras, I believe that this gives trouble with any modules but I would like to be proven wrong.
i am not sure about osX (Gem either tries to grab the first available device, which would be ok; or the first listed device (which would reduce your options to one camera) on linux i have worked with several cameras within one Gem-patch, there is something like a "device" message.
mfg.as.er IOhannes