noise

Add noise on video input frame.

The filter accepts the following options:

'all_seed'

'c0_seed'

'c1_seed'

'c2_seed'

'c3_seed'

Set noise seed for specific pixel component or all pixel components in case of all_seed. Default value is 123457.

'all_strength, alls'

'c0_strength, c0s'

'c1_strength, c1s'

'c2_strength, c2s'

'c3_strength, c3s'

Set noise strength for specific pixel component or all pixel components in case all_strength. Default value is 0. Allowed range is [0, 100].

'all_flags, allf'

'c0_flags, c0f'

'c1_flags, c1f'

'c2_flags, c2f'

'c3_flags, c3f'

Set pixel component flags or set flags for all components if all_flags. Available values for component flags are:

'a'

averaged temporal noise (smoother)

'p'

mix random noise with a (semi)regular pattern

't'

temporal noise (noise pattern changes between frames)

'u'

uniform noise (gaussian otherwise)

Command line examples

Add temporal and uniform noise to input video:

noise=alls=20:allf=t+u