Type Alias GreyAlgorithmCallback

GreyAlgorithmCallback: (
    red: number,
    green: number,
    blue: number,
    image: Image,
) => number

Call back that converts the RGB channels to grey. It is clamped afterwards.

Type declaration

- (red: number, green: number, blue: number, image: Image): number
- Parameters
  - red: number
    Value of the red channel.
  - green: number
    Value of the green channel.
  - blue: number
    Value of the blue channel.
  - image: Image
  Returns number
  Value of the grey channel.