blob_finder.h File Reference

Parse UYVY images and make a list of blobs of connected pixels. More...

#include "modules/computer_vision/lib/vision/image.h"

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Data Structures
struct	image_filter_t
struct	image_label_t

Functions
void	image_labeling (struct image_t *input, struct image_t *output, struct image_filter_t *filters, uint8_t filters_cnt, struct image_label_t *labels, uint16_t *labels_count)

Detailed Description

Parse UYVY images and make a list of blobs of connected pixels.

Definition in file blob_finder.h.

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Data Structure Documentation

struct image_filter_t

Definition at line 36 of file blob_finder.h.

Data Fields
uint8_t	u_max
uint8_t	u_min
uint8_t	v_max
uint8_t	v_min
uint8_t	y_max
uint8_t	y_min	YUV color filter.

struct image_label_t

Definition at line 46 of file blob_finder.h.

Collaboration diagram for image_label_t:

Data Fields
struct point_t	contour[512]
uint16_t	contour_cnt
uint16_t	corners[4]
uint8_t	filter	Which filter triggered this blob.
uint16_t	id	Blob number.
uint32_t	pixel_cnt	Number of pixels in the blob.
uint16_t	x_min	Top left corner.
uint32_t	x_sum	Sum of all x coordinates (used to find center of gravity)
uint16_t	y_min
uint32_t	y_sum

Function Documentation

void image_labeling	(	struct image_t *	input,
		struct image_t *	output,
		struct image_filter_t *	filters,
		uint8_t	filters_cnt,
		struct image_label_t *	labels,
		uint16_t *	labels_count
	)

Definition at line 33 of file blob_finder.c.

References image_t::buf, image_label_t::filter, image_t::h, image_label_t::id, if(), p, image_label_t::pixel_cnt, v_max, v_min, image_t::w, image_label_t::x_min, image_label_t::x_sum, image_label_t::y_min, and image_label_t::y_sum.

Referenced by cv_blob_locator_func().

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