"film grain"의 정의 및 의미

What is "film grain"?

Film grain is the visible texture or pattern that appears in photographs taken with film cameras. It results from the tiny particles within the film that create a distinctive, sometimes textured appearance in the image. The size and distribution of these particles affect the image's sharpness and texture. Film grain can add a unique, artistic quality to images, often giving them a classic or vintage look.