spice::blur namespace
#include <include/spice/blur.hpp>

Contents

This namespace exports a collection of blurring and averaging functions.

Functions

template<typename T>
auto fast_gaussian(image<T> const& source, float sigma, size_t passes = 5) -> image<T>

Function documentation

template<typename T>
image<T> spice::blur::fast_gaussian(image<T> const& source, float sigma, size_t passes = 5)

Parameters
source The image to blur
sigma The standard deviation ("size") of the blur
passes How many box-blur passes should be applied. A higher number will yield a closer approximation at the cost of longer running time.
Returns A blurred copy of the input image

Applies an approximation of a gaussian blur to the source image. This function has an asymptotic time complexity of O(w * h * c) where w, h, c refer to the width, height and channel count of the source image.

Image