cvmean.cpp.svn-base

来自「非结构化路识别」· SVN-BASE 代码 · 共 381 行 · 第 1/2 页

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#include "_cv.h"
#include <float.h>

/****************************************************************************************\
*                              Mean value over the region                                *
\****************************************************************************************/

#define ICV_IMPL_MEAN_1D_CASE_C1( _mask_op_, acctype, src, mask, len, sum, pix ) \
{                                                                   \
    int i;                                                          \
    acctype s1 = 0;                                                 \
                                                                    \
    for( i = 0; i <= (len) - 4; i += 4 )                            \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
        acctype s;                                                  \
                                                                    \
        s = _mask_op_(m,(src)[i]);                                  \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 1] == 0) - 1;                               \
        s += _mask_op_(m,(src)[i + 1]);                             \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 2] == 0) - 1;                               \
        s += _mask_op_(m,(src)[i + 2]);                             \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 3] == 0) - 1;                               \
        (sum)[0] += s + _mask_op_(m,(src)[i + 3]);                  \
        (pix) -= m;                                                 \
    }                                                               \
                                                                    \
    for( ; i < (len); i++ )                                         \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
                                                                    \
        s1 += _mask_op_(m,(src)[i]);                                \
        (pix) -= m;                                                 \
    }                                                               \
                                                                    \
    (sum)[0] += s1;                                                 \
}


#define ICV_IMPL_MEAN_1D_CASE_COI( _mask_op_, acctype, src, mask, len, sum, pix, cn ) \
{                                                                   \
    int i;                                                          \
    acctype s1 = 0;                                                 \
                                                                    \
    for( i = 0; i <= (len) - 4; i += 4 )                            \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
        acctype s;                                                  \
                                                                    \
        s = _mask_op_( m, (src)[i*(cn)]);                           \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 1] == 0) - 1;                               \
        s += _mask_op_( m, (src)[(i + 1)*(cn)]);                    \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 2] == 0) - 1;                               \
        s += _mask_op_( m, (src)[(i + 2)*(cn)]);                    \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 3] == 0) - 1;                               \
        (sum)[0] += s + _mask_op_( m, (src)[(i + 3)*(cn)]);         \
        (pix) -= m;                                                 \
    }                                                               \
                                                                    \
    for( ; i < (len); i++ )                                         \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
                                                                    \
        s1 += _mask_op_( m, (src)[i*(cn)]);                         \
        (pix) -= m;                                                 \
    }                                                               \
                                                                    \
    (sum)[0] += s1;                                                 \
}


#define ICV_IMPL_MEAN_1D_CASE_C2( _mask_op_, acctype, src, mask, len, sum, pix ) \
{                                                                   \
    int i;                                                          \
                                                                    \
    for( i = 0; i <= (len) - 2; i += 2 )                            \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
                                                                    \
        (sum)[0] += _mask_op_( m, (src)[i*2]);                      \
        (sum)[1] += _mask_op_( m, (src)[i*2 + 1]);                  \
        (pix) -= m;                                                 \
                                                                    \
        m = ((mask)[i + 1] == 0) - 1;                               \
        (sum)[0] += _mask_op_( m, (src)[i*2 + 2]);                  \
        (sum)[1] += _mask_op_( m, (src)[i*2 + 3]);                  \
        (pix) -= m;                                                 \
    }                                                               \
                                                                    \
    for( ; i < (len); i++ )                                         \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
                                                                    \
        (sum)[0] += _mask_op_( m, (src)[i*2]);                      \
        (sum)[1] += _mask_op_( m, (src)[i*2 + 1]);                  \
        (pix) -= m;                                                 \
    }                                                               \
}


#define ICV_IMPL_MEAN_1D_CASE_C3( _mask_op_, acctype, src, mask, len, sum, pix ) \
{                                                                   \
    int i;                                                          \
                                                                    \
    for( i = 0; i < (len); i++ )                                    \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
                                                                    \
        (sum)[0] += _mask_op_( m, (src)[i*3]);                      \
        (sum)[1] += _mask_op_( m, (src)[i*3 + 1]);                  \
        (sum)[2] += _mask_op_( m, (src)[i*3 + 2]);                  \
        (pix) -= m;                                                 \
    }                                                               \
}


#define ICV_IMPL_MEAN_1D_CASE_C4( _mask_op_, acctype, src, mask, len, sum, pix ) \
{                                                                   \
    int i;                                                          \
                                                                    \
    for( i = 0; i < (len); i++ )                                    \
    {                                                               \
        int m = ((mask)[i] == 0) - 1;                               \
                                                                    \
        (sum)[0] += _mask_op_( m, (src)[i*4]);                      \
        (sum)[1] += _mask_op_( m, (src)[i*4 + 1]);                  \
        (sum)[2] += _mask_op_( m, (src)[i*4 + 2]);                  \
        (sum)[3] += _mask_op_( m, (src)[i*4 + 3]);                  \
        (pix) -= m;                                                 \
    }                                                               \
}



#define ICV_MEAN_ENTRY( sumtype ) \
    sumtype sum[4] = {0,0,0,0};  \
    int pix = 0