This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
hop shape seamless texture zaphad creative commons blackandwhite monochrome white background indoor black and white photoshop stuff. The shape fits together repeatedly . invented this from photos as anyone whos used to CS with pen and smooth lines can tell by how bad it is. This is about as near as could get with photoshop elements