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Fast Java screen capture

I am trying to create Ambilight using some LED strips connected to Raspberry Pi running on Raspbian. I am creating a Java application that needs to read pixel colors from all sides of the screen, so I can use them for color LEDs behind the screen.

I tried to take screenshots with robot.createScreenCapture() , but it takes + - 45 ms to execute this line, which causes the LEDs to change color too late.

Does anyone have an idea on how to take a screenshot faster or how to get pixel colors in another way that reduces ms?

This is the method I'm currently using to take a screenshot:

 Robot robot = new Robot(); Rectangle area = new Rectangle(0, 0, this.screenSize.width, this.screenSize.height); BufferedImage bufferedImage = robot.createScreenCapture(area); //Slow line
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java performance screen capture
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1 answer

Use the getPixelColor () method for the robot

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