Automatically matching the color of one video source to another.

Is this even remotely possible? I’m interested in any information anyone might have on this.

ColourLike (an Avisynth plugin) is pretty good (but not perfect)

How would I go about trying to use that? Explain to me like I’m five.

I’m assuming you’re on windows.

1. Install AviSynth ( http://avisynth.nl/index.php/Main_Page )
2. Install the ColourLike plugin ( http://www.avisynth.nl/users/warpenterprises/files/colourlike_5F25_dll_20050825.zip )
3. Write scripts for both of your videos, try to make them as similar as possible (framerate, cropping etc.)
4. Write the histogram for the original file
5. Read the histogram created in step 4 in the script for your “second” video

Check this thread for longer explanation of usage of Colourlike http://forum.doom9.org/showthread.php?t=96308
And of course the first video is the one you’re taking the colour information from, the second video is the one you’re trying to have the same colors as the first one.