Midpoint image filters. More...

Functions
SIMD_API void	SimdMidpointFilterSquare3x3 (const uint8_t src, size_t srcStride, size_t width, size_t height, size_t channelCount, uint8_t dst, size_t dstStride)
	Performs 3x3 square midpoint filtering of an 8-bit interleaved image. More...

SIMD_API void	SimdMidpointFilterSquare5x5 (const uint8_t src, size_t srcStride, size_t width, size_t height, size_t channelCount, uint8_t dst, size_t dstStride)
	Performs 5x5 square midpoint filtering of an 8-bit interleaved image. More...

template<template< class > class A>
SIMD_INLINE void	MidpointFilterSquare3x3 (const View< A > &src, View< A > &dst)
	Performs midpoint filtration of input image (filter window is a square 3x3). More...

template<template< class > class A>
SIMD_INLINE void	MidpointFilterSquare5x5 (const View< A > &src, View< A > &dst)
	Performs midpoint filtration of input image (filter window is a square 5x5). More...

Detailed Description

Midpoint image filters.

Function Documentation

void SimdMidpointFilterSquare3x3	(	const uint8_t *	src,
		size_t	srcStride,
		size_t	width,
		size_t	height,
		size_t	channelCount,
		uint8_t *	dst,
		size_t	dstStride
	)

Performs 3x3 square midpoint filtering of an 8-bit interleaved image.

The filter is applied independently to every channel. Border pixels are handled by nearest-pixel replication. For every output sample:

min = minimum value in the 3x3 window;
max = maximum value in the 3x3 window;
dst[x, y, c] = (min + max + ((min + max) & 1)) / 2;

Note: This function has a C++ wrapper: Simd::MidpointFilterSquare3x3(const View<A>& src, View<A>& dst).

Parameters

[in]	src	- a pointer to pixels data of original input image.
[in]	srcStride	- a row size of src image (in bytes).
[in]	width	- an image width.
[in]	height	- an image height.
[in]	channelCount	- a number of 8-bit channels per pixel.
[out]	dst	- a pointer to pixels data of filtered output image.
[in]	dstStride	- a row size of dst image (in bytes).

void SimdMidpointFilterSquare5x5	(	const uint8_t *	src,
		size_t	srcStride,
		size_t	width,
		size_t	height,
		size_t	channelCount,
		uint8_t *	dst,
		size_t	dstStride
	)

Performs 5x5 square midpoint filtering of an 8-bit interleaved image.

The filter is applied independently to every channel. Border pixels are handled by nearest-pixel replication. For every output sample:

min = minimum value in the 5x5 window;
max = maximum value in the 5x5 window;
dst[x, y, c] = (min + max + ((min + max) & 1)) / 2;

Note: This function has a C++ wrapper: Simd::MidpointFilterSquare5x5(const View<A>& src, View<A>& dst).

Parameters

[in]	src	- a pointer to pixels data of original input image.
[in]	srcStride	- a row size of src image (in bytes).
[in]	width	- an image width.
[in]	height	- an image height.
[in]	channelCount	- a number of 8-bit channels per pixel.
[out]	dst	- a pointer to pixels data of filtered output image.
[in]	dstStride	- a row size of dst image (in bytes).

void MidpointFilterSquare3x3	(	const View< A > &	src,
		View< A > &	dst
	)

Performs midpoint filtration of input image (filter window is a square 3x3).

All images must have the same width, height and format (8-bit gray, 16-bit UV, 24-bit BGR or 32-bit BGRA).

Note: This function is a C++ wrapper for function SimdMidpointFilterSquare3x3.

Parameters

[in]	src	- an original input image.
[out]	dst	- a filtered output image.

void MidpointFilterSquare5x5	(	const View< A > &	src,
		View< A > &	dst
	)

Performs midpoint filtration of input image (filter window is a square 5x5).

All images must have the same width, height and format (8-bit gray, 16-bit UV, 24-bit BGR or 32-bit BGRA).

Note: This function is a C++ wrapper for function SimdMidpointFilterSquare5x5.

Parameters

[in]	src	- an original input image.
[out]	dst	- a filtered output image.