Function photon_rs::monochrome::g_grayscale

pub fn g_grayscale(photon_image: &mut PhotonImage)

Convert an image to grayscale by setting a pixel’s 3 RGB values to the Green channel’s value.

Arguments

• photon_image - A PhotonImage.

Example

use photon_rs::monochrome::g_grayscale;
use photon_rs::native::open_image;

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