How big is the photo of Chengdu senior high school entrance examination?

Consistent with the photos of the senior high school entrance examination, they are both two inches smaller (35x45).

The photos of the admission ticket for senior high school entrance examination are required to be taken in a professional photo studio or by a professional photographer. Digital photos require a recent bareheaded photo with five facial features on a white background and a head area of not less than half of the whole photo area.

Do you need one-inch or two-inch photos for the senior high school entrance examination? Are they color photos or black and white photos? Provinces and cities are different, and some have unified electronic cameras.