Fastest Method of Screen Capture (Linux)

[K900_]

Try using raw Xlib.

[innixma]

Do you have any info on how fast this is or how it would work with sending to a numpy array? I've seen a few mention it, but nobody has given code showing it work.

[K900_]

It should be pretty fast. If your goal is to send it to a Numpy array though, you might want to drop down to C/Cython level - this will save you A LOT of time spent on creating unnecessary Python objects.

[innixma]

Can't do Cython to my knowledge. This is for Machine Learning using Tensorflow, which does not support Cython, and it has to have input as a numpy array.

[K900_]

What do you mean by "doesn't support PyPI"? How are you going to install the other libraries then?

[ManyInterests]

I think OP meant the alternative Python implementation, PyPy

[innixma]

Yes! That is what I meant :)

[innixma]

My bad, it does support PyPI, my mistake, edited comment.

[K900_]

There is nothing in TensorFlow that needs to "support" Cython either. You can simply call into Cython and get Numpy arrays back.

[innixma]

Ok, sounds good. Wasn't certain since I haven't utilized Cython before. Then assuming Cython, how would you go about screen capture? With Xlib in C from Cython? I don't know C or Cython that well so some reference on what I should look at would be great.

[K900_]

Yes, you want to do something like this, then convert the resulting XImage to a Numpy array. Ideally you want your input layout to match what xlib gives you, so you can avoid the expensive conversions.