提供下OpenCvSharp的标定代码
时间: 2024-04-08 16:33:20 浏览: 72
当使用OpenCvSharp进行相机标定时,可以使用以下代码作为一个基本示例:
```csharp
using OpenCvSharp;
public class CameraCalibration
{
private Mat[] calibrationImages; // 存储标定图像的数组
private Mat cameraMatrix; // 相机矩阵
private Mat distortionCoefficients; // 畸变系数
public void CalibrateCamera()
{
// 1. 准备标定图像
// 将您的标定图像加载到calibrationImages数组中
// 2. 设置标定板参数
Size patternSize = new Size(9, 6); // 内部角点的行列数
List<Point2f[]> imagePoints = new List<Point2f[]>(); // 每个标定图像的内部角点
// 3. 检测标定板角点
foreach (Mat image in calibrationImages)
{
Mat grayImage = new Mat();
Cv2.CvtColor(image, grayImage, ColorConversionCodes.BGR2GRAY);
Point2f[] corners;
bool found = Cv2.FindChessboardCorners(grayImage, patternSize, out corners);
if (found)
{
Cv2.CornerSubPix(grayImage, corners, new Size(11, 11), new Size(-1, -1),
new TermCriteria(CriteriaTypes.MaxIter | CriteriaTypes.Eps, 30, 0.1));
imagePoints.Add(corners);
}
}
// 4. 标定相机
List<Mat> objectPoints = GenerateObjectPoints(imagePoints.Count, patternSize);
cameraMatrix = new Mat(3, 3, MatType.CV_64F);
distortionCoefficients = new Mat();
Mat[] rvecs, tvecs;
Cv2.CalibrateCamera(objectPoints, imagePoints.ToArray(), calibrationImages[0].Size(),
cameraMatrix, distortionCoefficients, out rvecs, out tvecs);
// 5. 打印标定结果
Console.WriteLine("相机矩阵:\n" + cameraMatrix);
Console.WriteLine("畸变系数:\n" + distortionCoefficients);
}
private List<Mat> GenerateObjectPoints(int imageCount, Size patternSize)
{
List<Mat> objectPoints = new List<Mat>();
for (int i = 0; i < imageCount; i++)
{
Mat objectPoint = new Mat(patternSize.Height * patternSize.Width, 1, MatType.CV_32FC3);
for (int j = 0; j < patternSize.Height; j++)
{
for (int k = 0; k < patternSize.Width; k++)
{
objectPoint.Set<float>(j * patternSize.Width + k, 0, j, k, 0);
}
}
objectPoints.Add(objectPoint);
}
return objectPoints;
}
}
```
这段代码演示了如何使用OpenCvSharp进行相机标定。您需要将标定图像加载到`calibrationImages`数组中,并根据您的实际情况设置标定板的参数。代码会检测图像中的标定板角点,然后使用这些角点来计算相机矩阵和畸变系数。最后,您可以打印出相机矩阵和畸变系数的结果。
请注意,这只是一个示例代码,您可能需要根据自己的需求进行一些修改。此外,为了使代码正常运行,您需要安装OpenCvSharp库和OpenCV。
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