Early film photographers shied away from capturing night scenes because these require prohibitively long exposures to maintain adequate depth of field, or produced unacceptable amounts of image noise.

The change, though it was made without noise, drew back the film from the placid look at the white ceiling, and he looked most affectionately at me.

The objective digital film image quality assessment based on peak signal to noise ratio, together with structural similarity and human vision system is proposed.