#include <stdio.h>
#include <AR/ar.h>

Include dependency graph for backup/lib/SRC/AR/arDetectMarker.c:

Functions
int	arDetectMarker (ARUint8 dataPtr, int thresh, ARMarkerInfo marker_info, int marker_num)
	main function to detect the square markers in the video input frame.
int	arDetectMarkerLite (ARUint8 dataPtr, int thresh, ARMarkerInfo marker_info, int marker_num)
	main function to detect rapidly the square markers in the video input frame.
int	arSavePatt (ARUint8 image, ARMarkerInfo marker_info, char *filename)
	save a marker.
int	arsDetectMarker (ARUint8 dataPtr, int thresh, ARMarkerInfo marker_info, int marker_num, int LorR)
int	arsDetectMarkerLite (ARUint8 dataPtr, int thresh, ARMarkerInfo marker_info, int marker_num, int LorR)
Variables
static ARMarkerInfo2 *	marker_info2
static arPrevInfo	prev_info [AR_SQUARE_MAX]
static int	prev_num = 0
static arPrevInfo	sprev_info [2][AR_SQUARE_MAX]
static int	sprev_num [2] = {0,0}
static ARMarkerInfo *	wmarker_info
static int	wmarker_num = 0

Function Documentation

int arDetectMarker	(	ARUint8 *	dataPtr,
		int	thresh,
		ARMarkerInfo **	marker_info,
		int *	marker_num
	)

main function to detect the square markers in the video input frame.

This function proceeds to thresholding, labeling, contour extraction and line corner estimation (and maintains an history). It's one of the main function of the detection routine with arGetTransMat.

Parameters:

dataPtr	a pointer to the color image which is to be searched for square markers. The pixel format depend of your architecture. Generally ABGR, but the images are treated as a gray scale, so the order of BGR components does not matter. However the ordering of the alpha comp, A, is important.
thresh	specifies the threshold value (between 0-255) to be used to convert the input image into a binary image.
marker_info	a pointer to an array of ARMarkerInfo structures returned which contain all the information about the detected squares in the image
marker_num	the number of detected markers in the image.

Returns:: 0 when the function completes normally, -1 otherwise

Definition at line 58 of file backup/lib/SRC/AR/arDetectMarker.c.

int arDetectMarkerLite	(	ARUint8 *	dataPtr,
		int	thresh,
		ARMarkerInfo **	marker_info,
		int *	marker_num
	)

main function to detect rapidly the square markers in the video input frame.

this function is a simpler version of arDetectMarker that does not have the same error correction functions and so runs a little faster, but is more error prone

Parameters:

dataPtr	a pointer to the color image which is to be searched for square markers. The pixel format depend of your architecture. Generally ABGR, but the images are treated as a gray scale, so the order of BGR components does not matter. However the ordering of the alpha component, A, is important.
thresh	specifies the threshold value (between 0-255) to be used to convert the input image into a binary image.
marker_info	a pointer to an array of ARMarkerInfo structures returned which contain all the information about the detected squares in the image
marker_num	the number of detected markers in the image.

Returns:: 0 when the function completes normally, -1 otherwise

Definition at line 175 of file backup/lib/SRC/AR/arDetectMarker.c.

int arSavePatt	(	ARUint8 *	image,
		ARMarkerInfo *	marker_info,
		char *	filename
	)

save a marker.

used in mk_patt to save a bitmap of the pattern of the currently detected marker. The saved image is a table of the normalized viewed pattern.

Parameters:

image	a pointer to the image containing the marker pattern to be trained.
marker_info	a pointer to the ARMarkerInfo structure of the pattern to be trained.
filename	The name of the file where the bitmap image is to be saved.