Parameters
- page
- Page to process.
- radius
- Defines the neighborhood to be considered for each pixel.
- channels
- Defines image channels to apply the transform to.
The radius parameter corresponds to the Standard Deviation (Sigma) in Gaussian transform. It can range from 0.1 to 500. Typical values for high-resolution images range from 1.0 to 2.0. Larger values will cause greater softening. On the other hand, smaller values are faster. The width of the area considered for each pixel is approximately 6 * radius.
The method allows to specify the range of channels to blur.