May 2000
Torsten Martinsen
Distort colors by random amounts
Add normally distributed (zero mean) random values to image channels. Noise may be additive (uncorrelated) or multiplicative (correlated - also known as speckle noise). For colour images colour channels may be treated together or independently.
unknown
Type | Name | Description |
---|---|---|
PF_INT | run-mode | The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) } |
PF_IMAGE | image | Input image (unused) |
PF_DRAWABLE | drawable | Input drawable |
PF_INT | independent | Noise in channels independent |
PF_INT | correlated | Noise correlated (i.e. multiplicative not additive) |
PF_FLOAT | noise-1 | Noise in the first channel (red, gray) |
PF_FLOAT | noise-2 | Noise in the second channel (green, gray_alpha) |
PF_FLOAT | noise-3 | Noise in the third channel (blue) |
PF_FLOAT | noise-4 | Noise in the fourth channel (alpha) |
None