fast_rosten.c File Reference

#include <stdlib.h>
#include "fast_rosten.h"

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Functions
static void	fast_make_offsets (int32_t *pixel, uint16_t row_stride, uint8_t pixel_size)
	Make offsets for FAST9 calculation. More...
struct point_t *	fast9_detect (struct image_t *img, uint8_t threshold, uint16_t min_dist, uint16_t x_padding, uint16_t y_padding, uint16_t *num_corners)
	Do a FAST9 corner detection. More...

Function Documentation

struct point_t* fast9_detect	(	struct image_t *	img,
		uint8_t	threshold,
		uint16_t	min_dist,
		uint16_t	x_padding,
		uint16_t	y_padding,
		uint16_t *	num_corners
	)

Do a FAST9 corner detection.

Parameters

[in]	*img	The image to do the corner detection on
[in]	threshold	The threshold which we use for FAST9
[in]	min_dist	The minimum distance in pixels between detections
[in]	x_padding	The padding in the x direction to not scan for corners
[in]	y_padding	The padding in the y direction to not scan for corners
[out]	*num_corners	The amount of corners found

Returns

The corners found

Definition at line 49 of file fast_rosten.c.

References image_t::buf, FALSE, fast_make_offsets(), image_t::h, IMAGE_YUV422, p, TRUE, image_t::type, image_t::w, point_t::x, and point_t::y.

Referenced by opticflow_calc_frame().

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static void fast_make_offsets ( int32_t *  pixel, uint16_t  row_stride, uint8_t  pixel_size  )

static

Make offsets for FAST9 calculation.

Parameters

[out]	*pixel	The offset array of the different pixels
[in]	row_stride	The row stride in the image

Definition at line 3645 of file fast_rosten.c.

Referenced by fast9_detect().

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