Struct HeightMapFilter 

pub struct HeightMapFilter;

Operations that work in gradient/frequency domain.

Implementations

impl HeightMapFilter

pub fn high_pass(map: &HeightMap, radius: usize) -> HeightMap

Apply a high-pass filter (removes low frequencies).

pub fn low_pass(map: &HeightMap, radius: usize) -> HeightMap

Apply a low-pass filter (removes high frequencies / smoothing).

pub fn band_pass( map: &HeightMap, low_radius: usize, high_radius: usize, ) -> HeightMap

Band-pass filter: keeps frequencies between low_radius and high_radius.

pub fn emboss(map: &HeightMap) -> HeightMap

Emboss filter: emphasizes edges to create a metallic/3D impression.

pub fn morphological_erosion(map: &HeightMap, radius: usize) -> HeightMap

Erosion morphological operator: each cell takes the minimum of its neighborhood.

pub fn morphological_dilation(map: &HeightMap, radius: usize) -> HeightMap

Dilation morphological operator: each cell takes the maximum of its neighborhood.

pub fn morphological_open(map: &HeightMap, radius: usize) -> HeightMap

Opening: erosion followed by dilation (removes small peaks).

pub fn morphological_close(map: &HeightMap, radius: usize) -> HeightMap

Closing: dilation followed by erosion (fills small valleys).