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Expose libvips gaussnoise operation (#2527)

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alza54
2021-01-16 15:03:25 +01:00
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@@ -38,6 +38,10 @@ Implements the [stream.Duplex][1] class.
- `options.create.width` **[number][8]?** integral number of pixels wide.
- `options.create.height` **[number][8]?** integral number of pixels high.
- `options.create.channels` **[number][8]?** integral number of channels, either 3 (RGB) or 4 (RGBA).
- `options.create.noise` **[Object][6]?** describes a noise to be created.
- `options.create.noise.type` **[string][5]?** type of generated noise. (supported: `gaussian`)
- `options.create.noise.mean` **[number][8]?** mean of pixels in generated image.
- `options.create.noise.sigma` **[number][8]?** standard deviation of pixels in generated image.
- `options.create.background` **([string][5] \| [Object][6])?** parsed by the [color][9] module to extract values for red, green, blue and alpha.
### Examples