A constant that indicates the conversion will distribute the noise according to a Gaussian distribution.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+
- tvOS 10.0+
- watchOS 4.0+
The following shows an 8-bit RGB image converted to a 1-bit planar image with
kv. The image on the left uses
kv, and the image on the right uses
To learn about converting an RGB image to grayscale, see Converting Color Images to Grayscale.