bilateral

Bilateral Filter. More...

Functions
AFAPI array	bilateral (const array &in, const float spatial_sigma, const float chromatic_sigma, const bool is_color=false)
	C++ Interface for bilateral filter. More...
AFAPI af_err	af_bilateral (af_array *out, const af_array in, const float spatial_sigma, const float chromatic_sigma, const bool isColor)
	C Interface for bilateral filter. More...

Detailed Description

Bilateral Filter.

A bilateral filter is a edge-preserving filter that reduces noise in an image. The intensity of each pixel is replaced by a weighted average of the intensities of nearby pixels. The weights follow a Gaussian distribution and depend on the distance as well as the color distance.

The bilateral filter requires the size of the filter (in pixels) and the upper bound on color values, N, where pixel values range from 0–N inclusively.

The return type of the array is f64 for f64 input, f32 for all other input types.

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Function Documentation

af_bilateral()

AFAPI af_err af_bilateral	(	af_array *	out,
		const af_array	in,
		const float	spatial_sigma,
		const float	chromatic_sigma,
		const bool	isColor
	)

C Interface for bilateral filter.

Parameters

[out]	out	array is the processed image
[in]	in	array is the input image
[in]	spatial_sigma	is the spatial variance parameter that decides the filter window
[in]	chromatic_sigma	is the chromatic variance parameter
[in]	isColor	indicates if the input in is color image or grayscale

Returns

AF_SUCCESS if the filter is applied successfully, otherwise an appropriate error code is returned.

bilateral()

AFAPI array bilateral	(	const array &	in,
		const float	spatial_sigma,
		const float	chromatic_sigma,
		const bool	is_color = false
	)

C++ Interface for bilateral filter.

Parameters

[in]	in	array is the input image
[in]	spatial_sigma	is the spatial variance parameter that decides the filter window
[in]	chromatic_sigma	is the chromatic variance parameter
[in]	is_color	indicates if the input in is color image or grayscale

Returns

the processed image