Extracting color from a video's pixel to automate an LFO.

    Jun 30 2012 | 10:24 pm
    I read in my Psych 101 textbook about how the human eye takes in light and understands color. They showed the process and gave me an idea for a new Max MSP patch.
    I want to take the color from a certain pixel and translate it into a sine wave so that I can use it as an LFO.
    I was thinking I could use Jitter to host the video, use Max to track a certain pixel (or group of pixels) in a certain area of the video, and then have the hue modulate the frequency and the brightness to modulate the amplitude of the sine wave. Are there any objects I should use to make this happen?

    • Jun 30 2012 | 10:52 pm
      Jit.matrix allows you to get the plane values of a particular cell/pixel at given x/y value. Also see jit.iter and jit.spill.