cholli flower
There is no real difference between a white background or a white background. I would think the black background will show a image that is mostly white will show a lot better then the white background.
Contrast in any difference, but in drawing it usually refers to difference in colouring (ie-a white flower on a black background provides high contrast).
Black is to white as seldom is to often.
The Billabong company uses a black background with a white wavy line for a logo.
The yorkshire flag
Developers use slight variations of black and white as background. This is because not to mix the font with the background.
They are white with black strips. If you look at one up close there is a white background to the zebra..
Black and white.
Crocodile
THQ
If you are referring to the background colors and graphics on a website, using one color for the background and the other color for the printed material often makes the content stand out better. White lettering on a black background or black lettering on a white background will be more noticeable than all one color.
A red background with LEGO in White capitals