10.20PLC+相机2.3视觉修改

Check.Main/Process_Img.cs

@@ -0,0 +1,150 @@
+using OpenCvSharp;
+using System;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Drawing.Imaging;
+using OpenCvSharp.Extensions;
+using System.Collections.Concurrent;
+using System.Threading.Tasks;
+using System.Diagnostics;
+using System.Threading;
+
+public class ProcessImg
+{
+    // 对单个图像进行模板匹配
+   
+    public static (double score, Rect? coords) MatchTemplate(Mat img, string templatePath)
+    {
+        // 确保图像和模板文件存在
+
+
+        // 读取图像和模板
+        
+        var template = Cv2.ImRead(templatePath, ImreadModes.Color);
+
+        // 创建一个模板匹配的结果矩阵
+        var result = new Mat();
+        Cv2.MatchTemplate(img, template, result, TemplateMatchModes.CCoeffNormed);
+
+        // 查找最大匹配值
+        Cv2.MinMaxLoc(result, out _, out var maxVal, out _, out var maxLoc);
+
+        // 如果找到的最大匹配值大于阈值
+        double threshold = 0.3; // 可以根据需要调整阈值
+        if (maxVal >= threshold)
+        {
+            // 计算匹配的坐标     
+            var topLeft = maxLoc;
+            var rect = new Rect(topLeft.X, topLeft.Y, template.Width, template.Height);
+
+            return (maxVal, rect);
+        }
+
+        return (0, null);
+    }   
+
+    // 遍历文件夹中的所有图像文件进行模板匹配，并找到最佳得分图像
+    public static Double ProcessImagesInFolder(string folderPath, Mat img)
+    {
+        // 获取所有图像文件
+        var imageFiles = Directory.GetFiles(folderPath, "*.*", SearchOption.TopDirectoryOnly)
+            .Where(file => file.EndsWith(".jpg", StringComparison.OrdinalIgnoreCase) ||
+                           file.EndsWith(".png", StringComparison.OrdinalIgnoreCase) ||
+                           file.EndsWith(".bmp", StringComparison.OrdinalIgnoreCase))
+            .ToList();
+
+      
+
+        // 确保输出文件夹存在
+        
+
+        // 线程数量
+        int numThreads = 5;
+
+        // 用于存储每个图像的得分和坐标
+        var bestMatch = new ConcurrentBag<(string imagePath, double score, Rect? coords)>();
+        DateTime startTime = DateTime.Now;
+        Stopwatch sw = new Stopwatch();
+        sw.Start();
+
+        Parallel.ForEach(imageFiles, new ParallelOptions { MaxDegreeOfParallelism = numThreads }, picPath =>
+        {
+            DateTime threadStartTime = DateTime.Now;
+
+            var (score, coords) = MatchTemplate(img, picPath);
+
+            
+            
+                bestMatch.Add((picPath, score, coords));
+            
+
+            DateTime threadEndTime = DateTime.Now;
+            TimeSpan threadElapsed = threadEndTime - threadStartTime;
+            Console.WriteLine($"线程处理 {picPath} 耗时: {threadElapsed.TotalMilliseconds}ms");
+        });
+
+        sw.Stop();
+        TimeSpan totalElapsed = sw.Elapsed;
+        Console.WriteLine($"处理完成，耗时: {totalElapsed.TotalSeconds}秒");
+        // 查找最佳得分
+        var best = bestMatch.OrderByDescending(m => m.score).FirstOrDefault();
+        return best.score;
+        //if (best.coords.HasValue)
+        //{
+        //    Rect rect = best.coords.Value;
+        //    return rect;
+        //}
+
+        //else
+        //{
+        //    return new Rect(0, 0, 0, 0);
+        //}
+       
+
+    }
+    public static Mat BitmapToMat(Bitmap bitmap)
+    {
+        if (bitmap == null)
+        {
+            throw new ArgumentException("Bitmap is null");
+        }
+
+        // 根据 Bitmap 的宽度、高度和像素格式创建一个与其相对应的 Mat
+        Mat mat = new Mat(bitmap.Height, bitmap.Width, MatType.CV_8UC3); // 假设 Bitmap 是 24-bit RGB
+
+        // 锁定 Bitmap 的内存区域以直接访问它的内存
+        BitmapData bitmapData = bitmap.LockBits(
+            new Rectangle(0, 0, bitmap.Width, bitmap.Height),
+            ImageLockMode.ReadOnly,
+            bitmap.PixelFormat
+        );
+
+        try
+        {
+            // 使用直接内存拷贝将 Bitmap 的数据拷贝到 Mat
+            unsafe
+            {
+                byte* srcData = (byte*)bitmapData.Scan0;
+                byte* dstData = (byte*)mat.DataPointer;
+
+                int stride = bitmapData.Stride;
+                int width = bitmap.Width * 3; // 24bpp 3个字节一个像素
+                int height = bitmap.Height;
+
+                for (int y = 0; y < height; y++)
+                {
+                    Buffer.MemoryCopy(srcData + y * stride, dstData + y * mat.Step(), width, width);
+                }
+            }
+        }
+        finally
+        {
+            bitmap.UnlockBits(bitmapData);
+        }
+
+        return mat;
+    }
+
+
+}