Struct MergeMertens 

pub struct MergeMertens {
    pub contrast_weight: f32,
    pub saturation_weight: f32,
    pub exposure_weight: f32,
}

HDR Merging using Mertens exposure fusion algorithm.

Fuses multiple differently-exposed images into a single image with expanded dynamic range using perceptually-motivated weight maps.

The algorithm computes three weight maps per image:

• Contrast: absolute value of the Laplacian (edge strength)
• Saturation: standard deviation of the color channels per pixel
• Exposure: how close the luminance is to 0.5 (optimal exposure)

These are multiplied together and normalized across all images to produce the final fused result.

Fields

contrast_weight: f32

saturation_weight: f32

exposure_weight: f32

Implementations

impl MergeMertens

pub fn new() -> Self

pub fn with_contrast_weight(self, w: f32) -> Self

Sets the contrast weight (default 1.0).

pub fn with_saturation_weight(self, w: f32) -> Self

Sets the saturation weight (default 1.0).

pub fn with_exposure_weight(self, w: f32) -> Self

Sets the exposure weight (default 1.0).

pub fn process<B: Backend>(&self, images: &[Image<B>]) -> Result<Image<B>>

Merges multiple exposure images using Mertens exposure fusion.

All images must have the same dimensions and 3 channels.

Trait Implementations

impl Default for MergeMertens

fn default() -> Self

Returns the “default value” for a type.