Interface

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. More...
int	hal_ni_FAST_dense (const uchar *src_data, size_t src_step, uchar *dst_data, size_t dst_step, int width, int height, int type)
	Detects corners using the FAST algorithm, returns mask. More...
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. More...

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

Detailed Description

Note

Define your functions to override default implementations:

#undef hal_add8u
#define hal_add8u my_add8u

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,src_step	Source image
width,height	Source image dimensions
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, int  type  )

inline

#include <features2d/src/hal_replacement.hpp>

Detects corners using the FAST algorithm, returns mask.

Parameters

src_data,src_step	Source image
dst_data,dst_step	Destination mask
width,height	Source image dimensions
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