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Fill mean and stdDev tails with zeros for HAL branch in meanStdDev#25789

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Merged
asmorkalov merged 2 commits intoopencv:4.xfromasmorkalov:as/HAL_meanStdDev_tails
Jun 27, 2024
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15 changes: 9 additions & 6 deletionsmodules/core/src/mean.dispatch.cpp
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Original file line numberDiff line numberDiff line change
Expand Up@@ -544,6 +544,10 @@ void meanStdDev(InputArray _src, OutputArray _mean, OutputArray _sdv, InputArray
int dcn = (int)mean_mat.total();
CV_Assert( mean_mat.type() == CV_64F && mean_mat.isContinuous() &&
(mean_mat.cols == 1 || mean_mat.rows == 1) && dcn >= cn );

double* dptr = mean_mat.ptr<double>();
for(k = cn ; k < dcn; k++ )
dptr[k] = 0;
}

if (_sdv.needed())
Expand All@@ -555,6 +559,11 @@ void meanStdDev(InputArray _src, OutputArray _mean, OutputArray _sdv, InputArray
int dcn = (int)stddev_mat.total();
CV_Assert( stddev_mat.type() == CV_64F && stddev_mat.isContinuous() &&
(stddev_mat.cols == 1 || stddev_mat.rows == 1) && dcn >= cn );

double* dptr = stddev_mat.ptr<double>();
for(k = cn ; k < dcn; k++ )
dptr[k] = 0;

}

if (src.isContinuous() && mask.isContinuous())
Expand DownExpand Up@@ -646,23 +655,17 @@ void meanStdDev(InputArray _src, OutputArray _mean, OutputArray _sdv, InputArray
if (_mean.needed())
{
const double* sptr = s;
int dcn = (int)mean_mat.total();
double* dptr = mean_mat.ptr<double>();
for( k = 0; k < cn; k++ )
dptr[k] = sptr[k];
for( ; k < dcn; k++ )
dptr[k] = 0;
}

if (_sdv.needed())
{
const double* sptr = sq;
int dcn = (int)stddev_mat.total();
double* dptr = stddev_mat.ptr<double>();
for( k = 0; k < cn; k++ )
dptr[k] = sptr[k];
for( ; k < dcn; k++ )
dptr[k] = 0;
}
}

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