Type alias GreyAlgorithmCallback

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

Type declaration

- (red, green, blue, image): number
- Call back that converts the RGB channels to grey. It is clamped afterwards.
  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.