Hello friends, I am new to the world of electronics. I would like to build a noise generator for videos. An input with the clean video and an output with the effects and potentiometer controls. Any tips on how to start?
start with searching for similar project on google and youtube maybe
@cebolander, welcome.
Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project 
See About the Installation & Troubleshooting category.
@sterretje thank you so much, friend.
Thanks for the answer, friend. I have done some research already but I haven't found any path yet, I will keep searching.
I guess the first thing is to decide what video you want to work with. Over-the-air TV. Cable and satellite video. Video out put to your computer screen. Each one is done completely different.
Perhaps you are thinking of the old analog TV, which is east to do with a noise generator.
But with digital video, you need to store it frame-by-frame. Then change pixels in each frame to what you want.
And good luck with the project.
Thanks for the reply, I do some work as a veejay at parties. I project video using the HDMI output of my notebook, I would like to create a device that sits between the notebook output and the video projector.
ok, What rate are the video frames sent to the projector? What is the size of each frame in bytes. That will tell you the very minimum processing speed you need to attain. Then there will the memory requires to store the current frame and the frame just being sent from the computer. So at least two frames of memory and possibly four if you double buffer the input and output. Now you know the minimum memory requirements, plus your code size.
When done with the analysis, you can pick an Arduino to do the job.
Cool, thanks for the clarification.
Or more likely, a Raspberry Pi. 