Getting of statistic related with Sobel filters. More...
Functions | |
| SIMD_API void | SimdSobelDxAbsSum (const uint8_t *src, size_t stride, size_t width, size_t height, uint64_t *sum) |
| Calculates sum of absolute value of Sobel's filter along x axis. More... | |
| SIMD_API void | SimdSobelDyAbsSum (const uint8_t *src, size_t stride, size_t width, size_t height, uint64_t *sum) |
| Calculates sum of absolute value of Sobel's filter along y axis. More... | |
| template<template< class > class A> | |
| SIMD_INLINE void | SobelDxAbsSum (const View< A > &src, uint64_t &sum) |
| Calculates sum of absolute value of Sobel's filter along x axis. More... | |
| template<template< class > class A> | |
| SIMD_INLINE void | SobelDyAbsSum (const View< A > &src, uint64_t &sum) |
| Calculates sum of absolute value of Sobel's filter along y axis. More... | |
Detailed Description
Getting of statistic related with Sobel filters.
Function Documentation
◆ SimdSobelDxAbsSum()
| void SimdSobelDxAbsSum | ( | const uint8_t * | src, |
| size_t | stride, | ||
| size_t | width, | ||
| size_t | height, | ||
| uint64_t * | sum | ||
| ) |
Calculates sum of absolute value of Sobel's filter along x axis.
Input image must has 8-bit gray 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 has a C++ wrappers: Simd::SobelDxAbsSum(const View<A>& src, uint64_t & sum).
- Parameters
-
[in] src - a pointer to pixels data of the input image. [in] stride - a row size of the input image. [in] width - an image width. [in] height - an image height. [out] sum - a pointer to unsigned 64-bit integer value with result sum.
◆ SimdSobelDyAbsSum()
| void SimdSobelDyAbsSum | ( | const uint8_t * | src, |
| size_t | stride, | ||
| size_t | width, | ||
| size_t | height, | ||
| uint64_t * | sum | ||
| ) |
Calculates sum of absolute value of Sobel's filter along y axis.
Input image must has 8-bit gray format.
For every point:
sum += 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::SobelDyAbsSum(const View<A>& src, uint64_t & sum).
- Parameters
-
[in] src - a pointer to pixels data of the input image. [in] stride - a row size of the input image. [in] width - an image width. [in] height - an image height. [out] sum - a pointer to unsigned 64-bit integer value with result sum.
◆ SobelDxAbsSum()
| void SobelDxAbsSum | ( | const View< A > & | src, |
| uint64_t & | sum | ||
| ) |
Calculates sum of absolute value of Sobel's filter along x axis.
Input image must has 8-bit gray format.
For every point:
sum += 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 SimdSobelDxAbsSum.
- Parameters
-
[in] src - an input image. [out] sum - an unsigned 64-bit integer value with result sum.
◆ SobelDyAbsSum()
| void SobelDyAbsSum | ( | const View< A > & | src, |
| uint64_t & | sum | ||
| ) |
Calculates sum of absolute value of Sobel's filter along y axis.
Input image must has 8-bit gray format.
For every point:
sum += 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 SimdSobelDyAbsSum.
- Parameters
-
[in] src - an input image. [out] sum - an unsigned 64-bit integer value with result sum.