Sobel image filters. More...

Functions
SIMD_API void	SimdSobelDx (const uint8_t src, size_t srcStride, size_t width, size_t height, uint8_t dst, size_t dstStride)
	Calculates Sobel's filter along x axis. More...

SIMD_API void	SimdSobelDxAbs (const uint8_t src, size_t srcStride, size_t width, size_t height, uint8_t dst, size_t dstStride)
	Calculates absolute value of Sobel's filter along x axis. More...

SIMD_API void	SimdSobelDy (const uint8_t src, size_t srcStride, size_t width, size_t height, uint8_t dst, size_t dstStride)
	Calculates Sobel's filter along y axis. More...

SIMD_API void	SimdSobelDyAbs (const uint8_t src, size_t srcStride, size_t width, size_t height, uint8_t dst, size_t dstStride)
	Calculates absolute value of Sobel's filter along y axis. More...

template<template< class > class A>
SIMD_INLINE void	SobelDx (const View< A > &src, View< A > &dst)
	Calculates Sobel's filter along x axis. More...

template<template< class > class A>
SIMD_INLINE void	SobelDxAbs (const View< A > &src, View< A > &dst)
	Calculates absolute value of Sobel's filter along x axis. More...

template<template< class > class A>
SIMD_INLINE void	SobelDy (const View< A > &src, View< A > &dst)
	Calculates Sobel's filter along y axis. More...

template<template< class > class A>
SIMD_INLINE void	SobelDyAbs (const View< A > &src, View< A > &dst)
	Calculates absolute value of Sobel's filter along y axis. More...

Detailed Description

Sobel image filters.

Function Documentation

◆ SimdSobelDx()

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

Calculates Sobel's filter along x axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:
dst[x, y] = (src[x+1,y-1] + 2*src[x+1, y] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x-1, y] + src[x-1, y+1]).

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

Parameters

[in]	src	- a pointer to pixels data of the input image.
[in]	srcStride	- a row size of the input image.
[in]	width	- an image width.
[in]	height	- an image height.
[out]	dst	- a pointer to pixels data of the output image.
[in]	dstStride	- a row size of the output image (in bytes).

◆ SimdSobelDxAbs()

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

Calculates absolute value of Sobel's filter along x axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = (src[x+1,y-1] + 2*src[x+1, y] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x-1, y] + src[x-1, y+1]).

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

Parameters

[in]	src	- a pointer to pixels data of the input image.
[in]	srcStride	- a row size of the input image.
[in]	width	- an image width.
[in]	height	- an image height.
[out]	dst	- a pointer to pixels data of the output image.
[in]	dstStride	- a row size of the output image (in bytes).

◆ SimdSobelDy()

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

Calculates Sobel's filter along y axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = (src[x-1,y+1] + 2*src[x, y+1] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x, y-1] + src[x+1, y-1]);

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

Parameters

[in]	src	- a pointer to pixels data of the input image.
[in]	srcStride	- a row size of the input image.
[in]	width	- an image width.
[in]	height	- an image height.
[out]	dst	- a pointer to pixels data of the output image.
[in]	dstStride	- a row size of the output image (in bytes).

◆ SimdSobelDyAbs()

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

Calculates absolute value of Sobel's filter along y axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = abs((src[x-1,y+1] + 2*src[x, y+1] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x, y-1] + src[x+1, y-1]));

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

Parameters

[in]	src	- a pointer to pixels data of the input image.
[in]	srcStride	- a row size of the input image.
[in]	width	- an image width.
[in]	height	- an image height.
[out]	dst	- a pointer to pixels data of the output image.
[in]	dstStride	- a row size of the output image (in bytes).

◆ SobelDx()

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

Calculates Sobel's filter along x axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = (src[x+1,y-1] + 2*src[x+1, y] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x-1, y] + src[x-1, y+1]).

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

Parameters

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

◆ SobelDxAbs()

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

Calculates absolute value of Sobel's filter along x axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = abs((src[x+1,y-1] + 2*src[x+1, y] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x-1, y] + src[x-1, y+1])).

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

Parameters

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

◆ SobelDy()

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

Calculates Sobel's filter along y axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = (src[x-1,y+1] + 2*src[x, y+1] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x, y-1] + src[x+1, y-1]);

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

Parameters

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

◆ SobelDyAbs()

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

Calculates absolute value of Sobel's filter along y axis.

All images must have the same width and height. Input image must has 8-bit gray format, output image must has 16-bit integer format.

For every point:

dst[x, y] = abs((src[x-1,y+1] + 2*src[x, y+1] + src[x+1, y+1]) - (src[x-1,y-1] + 2*src[x, y-1] + src[x+1, y-1]));

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

Parameters

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

Simd Library Documentation.

Functions

Detailed Description

Function Documentation

◆ SimdSobelDx()

◆ SimdSobelDxAbs()

◆ SimdSobelDy()

◆ SimdSobelDyAbs()

◆ SobelDx()

◆ SobelDxAbs()

◆ SobelDy()

◆ SobelDyAbs()