What does the Oscar for Best Black and White Photography mean?

Black-and-white film (B/W, black-and-white film) refers to the film made of negative film, which displays different levels of gray images on the film. Black-and-white movies provide a great space for expressionists to use light and shadow. Psychological meaning can often be conveyed through subtle changes in gray scale, and the atmosphere of the scene can also be created through tone processing. JamesWongHowe won the Oscar for Best Black-and-White Cinematography with Rose Tattoo 1955.