Electrical signal at each pixel of the CCD sensor in USB Camera

Does anyone know how to display a matrix of electrical signal at each pixel when a usb 2.0 camera is connected to the laptop. I have downloaded the image acquisition toolbox and can detect the video , but if someone could help me in figuring out the code to get the matrix of electric current/voltage at each pixel, would mean a lot.

Thank you :)

Answer 1

[Image Analyst]

I believe the only "electrical" signal that is available is the signal after it's been though the analog-to-digital converter, and any other stuff it does, like demoisaicing, dead pixel removal, etc. So that means the digital image (gray levels) is the only signal you can get.

[YOGITAA YOGITAA]

Thank you for clarifying.