Choosing an Acceptable Photo
Your passport-type or wallet-sized photo (sized from 2 x 2 up to 2.5 x 3 inches) must be at least 640 x 480 pixels.
The photo must:
Be properly focused
Not have discernible pixels or be grainy
Be correctly exposed (brightness and contrast)
Be taken in full-face view, directly facing the camera
Be clear enough so there is no doubt about your identity
Not be too dark or too light, with no shadows or glare on your face
Not show an outdated "look" for you (e.g., facial hair that you no longer have, a new and different hair length or color)
Not show other people in addition to you
Your appearance in the photo must match how you will look on the day of the test.
Do not wear a hat or head covering that obscures the hair or hairline, unless worn daily for a religious purpose. Your full face must be visible, and any head covering must not cast any shadows on your face.
If you normally wear prescription glasses, a hearing device or similar articles, they may be worn for your photo.
Sunglasses or glare on eyeglasses is not acceptable in your photo. Glare can be avoided with a slight downward tilt of the glasses or by removing the glasses or by turning off the camera flash.