detector.h

Go to the documentation of this file.

#ifndef JABCODE_DETECTOR_H
#define JABCODE_DETECTOR_H

#define TEST_MODE                       1
#if TEST_MODE
jab_bitmap* test_mode_bitmap;
#endif

#define MAX_MODULES             145     //the number of modules in side-version 32
#define MAX_SYMBOL_ROWS         3
#define MAX_SYMBOL_COLUMNS      3
#define MAX_FINDER_PATTERNS 200
#define PI                                      3.14159265
#define CROSS_AREA_WIDTH        14      //the width of the area across the host and slave symbols

#define DIST(x1, y1, x2, y2) (jab_float)(sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2)))

typedef enum
{
        QUICK_DETECT = 0,
        NORMAL_DETECT,
        INTENSIVE_DETECT
}jab_detect_mode;

typedef struct {
        jab_int32               type;
        jab_float               module_size;
        jab_point               center;                 //coordinates of the center
        jab_int32               found_count;
        jab_int32               direction;
}jab_finder_pattern;

typedef struct {
        jab_int32               type;
        jab_float               module_size;
        jab_point               center;                 //coordinates of the center
        jab_int32               found_count;
        jab_int32               direction;
}jab_alignment_pattern;

typedef struct {
        jab_float a11;
        jab_float a12;
        jab_float a13;
        jab_float a21;
        jab_float a22;
        jab_float a23;
        jab_float a31;
        jab_float a32;
        jab_float a33;
}jab_perspective_transform;


extern jab_bitmap* binarizer(jab_bitmap* bitmap, jab_int32 channel);
extern jab_bitmap* binarizerHist(jab_bitmap* bitmap, jab_int32 channel);
extern jab_bitmap* binarizerHard(jab_bitmap* bitmap, jab_int32 channel, jab_int32 threshold);
extern jab_perspective_transform* getPerspectiveTransform(jab_point p0, jab_point p1,
                                                                                                                  jab_point p2, jab_point p3,
                                                                                                                  jab_vector2d side_size);
extern jab_perspective_transform* perspectiveTransform( jab_float x0, jab_float y0,
                                                                                                                jab_float x1, jab_float y1,
                                                                                                                jab_float x2, jab_float y2,
                                                                                                                jab_float x3, jab_float y3,
                                                                                                                jab_float x0p, jab_float y0p,
                                                                                                                jab_float x1p, jab_float y1p,
                                                                                                                jab_float x2p, jab_float y2p,
                                                                                                                jab_float x3p, jab_float y3p);
extern void warpPoints(jab_perspective_transform* pt, jab_point* points, jab_int32 length);
extern jab_bitmap* sampleSymbol(jab_bitmap* bitmap, jab_perspective_transform* pt, jab_vector2d side_size);
extern jab_bitmap* sampleSymbolwithNc(jab_bitmap* bitmap, jab_perspective_transform* pt, jab_vector2d side_size, jab_int32 symbol_type, jab_bitmap* ch[]);
extern jab_bitmap* sampleCrossArea(jab_bitmap* bitmap, jab_perspective_transform* pt);

#endif