Optimizing a background image for a poster on a canvas

I am working on a poster that will be printed on an A0-sized canvas cloth. The background image of the poster is:

http://ift.tt/1zrcDIj

I heard that when printing on a canvas, the background image might interfere with the texture of the canvas and look unclear. Is there a way to manipulate the image so that it looks good as a large background image?