Type Definition image::GrayImage

type GrayImage = ImageBuffer<Luma<u8>, Vec<u8>>;

Sendable grayscale image buffer

Implementations

impl GrayImage

pub fn expand_palette(
    self,
    palette: &[(u8, u8, u8)],
    transparent_idx: Option<u8>
) -> RgbaImage

Expands a color palette by re-using the existing buffer. Assumes 8 bit per pixel. Uses an optionally transparent index to adjust it’s alpha value accordingly.