[][src]Function photon::channels::selective_hue_rotate

pub fn selective_hue_rotate(
    photon_image: &mut PhotonImage,
    ref_color: Rgb,
    degrees: f32
)

Selective hue rotation.

Only rotate the hue of a pixel if its RGB values are within a specified range. This function only rotates a pixel's hue to another if it is visually similar to the colour specified. For example, if a user wishes all pixels that are blue to be changed to red, they can selectively specify only the blue pixels to be changed.

Arguments

Example

// For example, to only rotate the pixels that are of RGB value RGB{20, 40, 60}:
let ref_color = Rgb{20, 40, 60};
photon::channels::selective_hue_rotate(&mut img, ref_color, 180);