How to take a white background photo to detect cmos

What you're asking is how to take a picture with a white background, right?

Photographing on a white background is an acrylic board with a white background, which is translucent and can be polished on all sides. Put a naked lamp at the bottom, and the background can be soft cloth or soft paper. When shooting the jewelry box, put the product in the middle of the background board, adjust the angle of the back board, and choose whether to use the transparent acrylic board according to the needs of the product. In terms of lighting, put the lights behind the background, put the lights on the bottom and top, and turn on the lights at the bottom first to shoot.