写一个opencvsharp 模板识别 仿射变换的实例
时间: 2023-05-14 17:06:00 浏览: 73
非常感谢您的提问,以下是一个基于 OpenCVSharp 的模板匹配和仿射变换的示例代码:
```csharp
using System;
using System.Drawing;
using OpenCvSharp;
class Program
{
static void Main(string[] args)
{
// 读取模板和原图
Mat template = Cv2.ImRead("template.png", ImreadModes.Grayscale);
Mat src = Cv2.ImRead("src.png", ImreadModes.Grayscale);
// 进行模板匹配
Mat result = new Mat();
Cv2.MatchTemplate(src, template, result, TemplateMatchModes.CCoeffNormed);
// 获取匹配结果中的最大值和对应的位置
double minVal, maxVal;
Point minLoc, maxLoc;
Cv2.MinMaxLoc(result, out minVal, out maxVal, out minLoc, out maxLoc);
// 获取模板的四个角点和对应的匹配位置
Point2f[] srcPoints = { new Point2f(0, 0), new Point2f(template.Width, 0), new Point2f(template.Width, template.Height), new Point2f(0, template.Height) };
Point2f[] dstPoints = { new Point2f(maxLoc.X, maxLoc.Y), new Point2f(maxLoc.X + template.Width, maxLoc.Y), new Point2f(maxLoc.X + template.Width, maxLoc.Y + template.Height), new Point2f(maxLoc.X, maxLoc.Y + template.Height) };
// 进行仿射变换
Mat affineTransform = Cv2.GetAffineTransform(srcPoints, dstPoints);
Mat dst = new Mat();
Cv2.WarpAffine(src, dst, affineTransform, src.Size());
// 显示结果
Cv2.ImShow("src", src);
Cv2.ImShow("template", template);
Cv2.ImShow("result", result);
Cv2.ImShow("dst", dst);
Cv2.WaitKey();
}
}
```
希望这个示例能够帮助到您!