Rand Node — Natron 2.5.0 documentation

# Rand Node

Creates uniform Random noise. This node alone is not suitable for image regrain.

2 different Rand with different values of “Density”

## Usage

The “Density” parameter allows one to change the average distance between the random dots of the noise

check “Static Seed” for a freeze frame of the effect

# Noise Node

Creates noiseover the source image.

2 different types of Noise. Poisson on the left, Gaussian on the right.

## Usage

The Sigma parameter control the amount of noise.

The “type “Poisson” noise reacts to the source image. It could be used to simulate electronic sensor noise. It gives a black result when no source image is provided. Type “Gaussian” is more uniform and is not dependant on the source image

check “Static Seed” for a freeze frame of the effect