Why put a black cloth in front of the photo?

You usually need to take a photo with a black background.

The site conditions for absorbing light are not good, the lights are flickering and the white cloth is wrinkled. Then many of them are post-processed by PS after shooting, which is so beautiful. Contrast, hue, defects, etc. It can be handled.

The requirement of ID photo is bareheaded (bareheaded) front photo. In the photo, you should normally see the outline of the human ear and the place equivalent to the Adam's apple. The photo size can be one inch or two inches, and the color can be black and white or color. Don't wear lipstick and other makeup colors that affect your real appearance, including dyeing your hair. That is, when taking photos, the background of the photos is white cloth, but you should wear clothes with collars. Don't wear too much makeup, it will affect the real appearance. You can only wear faint lipstick, look at your ears and neck, and don't wear any clothes on your head. Standards vary from case to case, and relevant departments must be asked for special circumstances.