Interface

Detailed Description

Note

Define your functions to override default implementations:

#undef hal_add8u
#define hal_add8u my_add8u

Classes
struct	cvhalKeyPoint

Functions
int	hal_ni_FAST (const uchar *src_data, size_t src_step, int width, int height, uchar *keypoints_data, size_t *keypoints_count, int threshold, bool nonmax_suppression, int type)
	Detects corners using the FAST algorithm.
int	hal_ni_FAST_dense (const uchar *src_data, size_t src_step, uchar *dst_data, size_t dst_step, int width, int height, cv::FastFeatureDetector::DetectorType type)
	Detects corners using the FAST algorithm, returns mask.
int	hal_ni_FAST_NMS (const uchar *src_data, size_t src_step, uchar *dst_data, size_t dst_step, int width, int height)
	Non-maximum suppression for FAST_9_16.

Fast feature detector types
See also cv::FastFeatureDetector
#define	CV_HAL_TYPE_5_8   0
#define	CV_HAL_TYPE_7_12   1
#define	CV_HAL_TYPE_9_16   2

Macro Definition Documentation

CV_HAL_TYPE_5_8

#define CV_HAL_TYPE_5_8   0

#include <opencv2/features2d/hal/interface.h>

CV_HAL_TYPE_7_12

#define CV_HAL_TYPE_7_12   1

#include <opencv2/features2d/hal/interface.h>

CV_HAL_TYPE_9_16

#define CV_HAL_TYPE_9_16   2

#include <opencv2/features2d/hal/interface.h>

Function Documentation

hal_ni_FAST()

int hal_ni_FAST ( const uchar * src_data, size_t src_step, int width, int height, uchar * keypoints_data, size_t * keypoints_count, int threshold, bool nonmax_suppression, int type )

inline

#include <features2d/src/hal_replacement.hpp>

Detects corners using the FAST algorithm.

Parameters

src_data	Source image data
src_step	Source image step
width	Source image width
height	Source image height
keypoints_data	Pointer to keypoints
keypoints_count	Count of keypoints
threshold	Threshold for keypoint
nonmax_suppression	Indicates if make nonmaxima suppression or not.
type	FAST type

hal_ni_FAST_dense()

int hal_ni_FAST_dense ( const uchar * src_data, size_t src_step, uchar * dst_data, size_t dst_step, int width, int height, cv::FastFeatureDetector::DetectorType type )

inline

#include <features2d/src/hal_replacement.hpp>

Detects corners using the FAST algorithm, returns mask.

Parameters

src_data	Source image data
src_step	Source image step
dst_data	Destination mask data
dst_step	Destination mask step
width	Source image width
height	Source image height
type	FAST type

hal_ni_FAST_NMS()

int hal_ni_FAST_NMS ( const uchar * src_data, size_t src_step, uchar * dst_data, size_t dst_step, int width, int height )

inline

#include <features2d/src/hal_replacement.hpp>

Non-maximum suppression for FAST_9_16.

Parameters

src_data,src_step	Source mask
dst_data,dst_step	Destination mask after NMS
width,height	Source mask dimensions