Struct color_quant::NeuQuant
[−]
[src]
pub struct NeuQuant { /* fields omitted */ }Neural network based color quantizer.
Methods
impl NeuQuant[src]
fn new(samplefac: i32, colors: usize, pixels: &[u8]) -> Self
Creates a new neuronal network and trains it with the supplied data.
Pixels are assumed to be in RGBA format.
colors should be $>=64$. samplefac determines the faction of
the sample that will be used to train the network. Its value must be in the
range $[1, 30]$. A value of $1$ thus produces the best result but is also
slowest. $10$ is a good compromise between speed and quality.
fn init(&mut self, pixels: &[u8])
Initializes the neuronal network and trains it with the supplied data.
This method gets called by Self::new.
fn map_pixel(&self, pixel: &mut [u8])
Maps the rgba-pixel in-place to the best-matching color in the color map.
fn index_of(&self, pixel: &[u8]) -> usize
Finds the best-matching index in the color map.
pixel is assumed to be in RGBA format.
fn color_map_rgba(&self) -> Vec<u8>
Returns the RGBA color map calculated from the sample.
fn color_map_rgb(&self) -> Vec<u8>
Returns the RGBA color map calculated from the sample.