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Small updates.

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Daniel 2025-03-10 11:16:53 +01:00
parent e39eb949ea
commit f4a2c35c73
1 changed files with 6 additions and 1 deletions
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7
modules/calib3d/src/calibration_base.cpp
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@ -1530,15 +1530,20 @@ void cv::getUndistortRectangles(InputArray _cameraMatrix, InputArray _distCoeffs
Mat _pts(1, 4*(N-1), CV_64FC2); Mat _pts(1, 4*(N-1), CV_64FC2);
Point2d* pts = _pts.ptr<Point2d>(); Point2d* pts = _pts.ptr<Point2d>();
// generate a grid of points across the image to estimate the distortion deformation
double stepX = (imgSize.width - 1) / static_cast<double>(N - 1);
double stepY = (imgSize.height - 1) / static_cast<double>(N - 1);
for( y = k = 0; y < N; y++ ) for( y = k = 0; y < N; y++ )
{ {
for( x = 0; x < N; x++ ) for( x = 0; x < N; x++ )
{ {
if (x != 0 && x != N - 1 && y != 0 && y != N - 1) if (x != 0 && x != N - 1 && y != 0 && y != N - 1)
{ {
// skip all points except those on the image border, because inner grid points
// have no influence on the two deformation rectangles that are calculated below
continue; continue;
} }
pts[k++] = Point2d((double)x*(imgSize.width-1)/(N-1), (double)y*(imgSize.height-1)/(N-1)); pts[k++] = Point2d(x * stepX, y * stepY);
} }
} }