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Merge pull request #2219 from ilya-lavrenov:createHanningWindow

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This commit is contained in:
Andrey Pavlenko
2014-01-31 19:25:00 +04:00
committed by OpenCV Buildbot
parent 25d2ab8a68 41bc5808c0
commit c909a21035
2 changed files with 34 additions and 12 deletions
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24
modules/imgproc/src/phasecorr.cpp
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@@ -576,20 +576,23 @@ void cv::createHanningWindow(OutputArray _dst, cv::Size winSize, int type)
_dst.create(winSize, type);
Mat dst = _dst.getMat();
int rows = dst.rows;
int cols = dst.cols;
int rows = dst.rows, cols = dst.cols;
AutoBuffer<double> _wc(cols);
double * const wc = (double *)_wc;
double coeff0 = 2.0 * CV_PI / (double)(cols - 1), coeff1 = 2.0f * CV_PI / (double)(rows - 1);
for(int j = 0; j < cols; j++)
wc[j] = 0.5 * (1.0 - cos(coeff0 * j));
if(dst.depth() == CV_32F)
{
for(int i = 0; i < rows; i++)
{
float* dstData = dst.ptr<float>(i);
double wr = 0.5 * (1.0f - cos(2.0f * CV_PI * (double)i / (double)(rows - 1)));
double wr = 0.5 * (1.0 - cos(coeff1 * i));
for(int j = 0; j < cols; j++)
{
double wc = 0.5 * (1.0f - cos(2.0f * CV_PI * (double)j / (double)(cols - 1)));
dstData[j] = (float)(wr * wc);
}
dstData[j] = (float)(wr * wc[j]);
}
}
else
@@ -597,12 +600,9 @@ void cv::createHanningWindow(OutputArray _dst, cv::Size winSize, int type)
for(int i = 0; i < rows; i++)
{
double* dstData = dst.ptr<double>(i);
double wr = 0.5 * (1.0 - cos(2.0 * CV_PI * (double)i / (double)(rows - 1)));
double wr = 0.5 * (1.0 - cos(coeff1 * i));
for(int j = 0; j < cols; j++)
{
double wc = 0.5 * (1.0 - cos(2.0 * CV_PI * (double)j / (double)(cols - 1)));
dstData[j] = wr * wc;
}
dstData[j] = wr * wc[j];
}
}