say - there is a lot of 'noise in the background.

there is a lot of "noise in the background. I tried to go in and fix the pixilation - and could not easily find the tools to work with "or" if they even exist. Background of black is easy to see edge but often fools' monitors into coloring images differently, that is why companies like Cor?? and the like use a background of white - thanks for the opportunity to help