http://it.ivisa.com/photos/dv-lottery-photos
If you're applying to be a DV Lottery winner, your photo should be of yourself. It should have been taken within the last six month and be a high resolution JPG. Avoid using filters or photo editing software, and remember to look directly into the camera. Your background should be white or light-colored. A patterned or dark background will not be acceptable. Your photo should also be sharp.