Use Arduino and/or processing to create an touch sense Canvas

Hello,

I am a student currently experimenting with Arduino and Processing. I have a brief that I am working towards and wish to create an animated canvas using Arduino as the input and Processing as a visual output which will be connected to a projector which will project onto the canvas.

I will be using bare conductive ink but no touch board as I wish to use the Arduino only. Does anyone have any tutorials or suggestions that might help?

Thank you in advance. :)

Shiv