pub fn grayscale(img: &mut PhotonImage)
Expand description

Convert an image to grayscale using the conventional averaging algorithm.

Arguments

  • photon_image - A PhotonImage.

Example

// For example, to convert an image of type `PhotonImage` to grayscale:
use photon_rs::monochrome::grayscale;
use photon_rs::native::open_image;

let mut img = open_image("img.jpg").expect("File should open");
grayscale(&mut img);