_cvutils.h.svn-base

来自「非结构化路识别」· SVN-BASE 代码 · 共 328 行 · 第 1/2 页

                    {                                                   \
                        stack[++sp].lb   = j + 1;                       \
                        stack[sp].ub = ub;                              \
                    }                                                   \
                    ub = j - 1;                                         \
                }                                                       \
                else                                                    \
                {                                                       \
                    if( j - 1 > lb)                                     \
                    {                                                   \
                        stack[++sp].lb = lb;                            \
                        stack[sp].ub = j - 1;                           \
                    }                                                   \
                    lb = j + 1;                                         \
                }                                                       \
            }                                                           \
        }                                                               \
    }                                                                   \
}

#define CV_IMPLEMENT_QSORT( func_name, T, less_than )  \
    CV_IMPLEMENT2_QSORT( func_name, T, less_than, int )


/****************************************************************************************\
*                             Mathematical functions                                     *
\****************************************************************************************/

/* calculates 1/sqrt(val) */
double icvInvSqrt64d( double val );

/* 
   Finds L1 norm between two blocks.
   !!!! function doesn't perform EMMS !!!!
*/
int  icvCmpBlocksL1_8u_C1( const uchar* vec1, const uchar* vec2, int len );

/* 
   Finds squared L2 norm between two blocks.
   !!!! function don't perform EMMS (except 32f flavor function) !!!!
*/
int64  icvCmpBlocksL2_8u_C1( const uchar* vec1, const uchar* vec2, int len );
int64  icvCmpBlocksL2_8s_C1( const char* vec1, const char* vec2, int len );
double icvCmpBlocksL2_32f_C1( const float* vec1, const float* vec2, int len );


int64  icvSumPixels_8u_C1( const uchar* vec, int len );
int64  icvSumPixels_8s_C1( const char* vec, int len );
double icvSumPixels_32f_C1( const float* vec, int len );

/* 
   Calculates cross correlation for two blocks.
   !!!! function doesn't perform EMMS !!!!
*/
int64  icvCrossCorr_8u_C1( const uchar* vec1, const uchar* vec2, int len );
int64  icvCrossCorr_8s_C1( const char* vec1, const char* vec2, int len );
double icvCrossCorr_32f_C1( const float* vec1, const float* vec2, int len );

CvStatus  icvProjectPoints( int             numPoints,
                            CvPoint3D64d*   objectPoints,
                            CvVect64d       rotVect,
                            CvVect64d       transVect,
                            CvVect64d       focalLength,
                            CvPoint2D64d    principalPoint,
                            CvVect64d       distortion,
                            CvPoint2D64d*   imagePoints,
                            CvVect64d       derivPointsRot,
                            CvVect64d       derivPointsTrans,
                            CvVect64d       derivPointsFocal,
                            CvVect64d       derivPointsPrincipal,
                            CvVect64d       derivPointsDistort);


float  icvFastArctan32f( float y, float x );

#define  CV_DESCALE(x,n)     (((x) + (1 << ((n)-1))) >> (n))
#define  CV_FLT_TO_FIX(x,n)  cvRound((x)*(1<<(n)))

int icvInitLineIterator( const CvMat* mat, CvPoint pt1, CvPoint pt2,
                         CvLineIterator* iterator,
                         int connectivity, int left_to_right = 0 );

void icvSepConvSmall3_32f( float*  src, int src_step,
                           float*  dst, int dst_step,
                           CvSize src_size,
                           const float* kx, const float* ky,
                           float*  buffer );

typedef struct CvFastDiv
{
    unsigned delta, scale, divisor;
}
CvFastDiv;

#define CV_FAST_DIV_SHIFT 32

CV_INLINE CvFastDiv icvFastDiv( int divisor );
CV_INLINE CvFastDiv icvFastDiv( int divisor )
{
    CvFastDiv fastdiv;
    
    assert( divisor >= 1 );
    uint64 temp = ((uint64)1 << CV_FAST_DIV_SHIFT)/divisor;

    fastdiv.divisor = divisor;
    fastdiv.delta = (unsigned)(((temp & 1) ^ 1) + divisor - 1);
    fastdiv.scale = (unsigned)((temp + 1) >> 1);
    
    return fastdiv;
}

#define CV_FAST_DIV( x, fastdiv )  \
    ((int)(((int64)((x)*2 + (int)(fastdiv).delta))*(int)(fastdiv).scale>>CV_FAST_DIV_SHIFT))

#define CV_FAST_UDIV( x, fastdiv )  \
    ((int)(((uint64)((x)*2 + (fastdiv).delta))*(fastdiv).scale>>CV_FAST_DIV_SHIFT))

/* calculate binomial kernel */
void icvCalcKer( char *kernel, int order, int size, int datatype, int origin );

/* extract packed color */
void icvExtractColor( double color, int type, void* buffer );

/* initialize accumulation table */
void icvInitAccTable( CvFuncTable* tabfl, CvFuncTable* tabdb,
                      CvBigFuncTable* masktab );

/****************************************************************************************\
*                                 IEEE 754 helper functions                              *
\****************************************************************************************/

#ifdef  CV_CHECK_FOR_NANS
    #define CV_CHECK_NANS( arr ) cvCheckArray((arr))  
    #define CV_CHECK_NANS_32F( src, srcstep, size ) \
        assert(icvCheckArray_32f_C1R( (src), (srcstep), (size), 0, 0, 0 )>=0)

    #define CV_CHECK_NANS_64F( src, srcstep, size ) \
        assert(icvCheckArray_64f_C1R( (src), (srcstep), (size), 0, 0, 0 )>=0)
#else
    #define CV_CHECK_NANS( arr )
    #define CV_CHECK_NANS_32F( src, srcstep, size )
    #define CV_CHECK_NANS_64F( src, srcstep, size )
#endif

#define icvCheckVector_32f( src, len ) \
    CV_CHECK_NANS_32F( (src), 0, cvSize(1,(len))) 

#define icvCheckVector_64f( src, len ) \
    CV_CHECK_NANS_64F( (src), 0, cvSize(1,(len))) 

#define icvCheckVector_64d icvCheckVector_64f

#define icvCheckMatrix_32f( src, w, h ) \
    CV_CHECK_NANS_32F( (src), 0, cvSize(1,(w)*(h))) 

#define icvCheckMatrix_64f( src, len ) \
    CV_CHECK_NANS_64F( (src), 0, cvSize(1,(w)*(h))) 

#define icvCheckMatrix_64d icvCheckMatrix_64f

#endif /*_IPCVUTILS_H_*/

/* End of file. */