Function photon::channels::alter_two_channels

pub fn alter_two_channels(
    img: &mut PhotonImage, 
    channel1: usize, 
    amt1: i16, 
    channel2: usize, 
    amt2: i16
)

Increment/decrement two channels' values simultaneously by adding an amt to each channel per pixel.

Arguments

• img - A PhotonImage.
• channel1 - A usize from 0 to 2 that represents either the R, G or B channels.
• amt1 - The amount to increment/decrement the channel's value by for that pixel.
• channel2 -A usize from 0 to 2 that represents either the R, G or B channels.
• amt2 - The amount to increment/decrement the channel's value by for that pixel.

Example

// For example, to increase the values of the Red and Blue channels per pixel:
photon::channels::inc_two_channels(&mut img, 0, 10, 2, 20);