video - Faster alternative to Java Robot Class -

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I forgot a lot, and I saw the same question on the stack, but I was not able to do some useful JNI or OpenCV), I am here:

I am developing a simple streaming video application (with the Jugler library) which has a lot of screen capture. I tried with the Java robot class, but to take a screenshot of 120 mms (2800x1800) I think there is enough, so how can I improve it for a frame rate of at least 40 fps?

Thanks,


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