From cd61e4a36a316648016675888942beb71369a025 Mon Sep 17 00:00:00 2001
From: tanglong <842690096@qq.com>
Date: Sat, 28 Feb 2026 09:17:18 +0800
Subject: [PATCH] =?UTF-8?q?=E5=BC=82=E5=B8=B8?=
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---
 Wpf_AiSportsMicrospace/Common/Utils.cs | 109 +++++++++++++------------
 1 file changed, 57 insertions(+), 52 deletions(-)

diff --git a/Wpf_AiSportsMicrospace/Common/Utils.cs b/Wpf_AiSportsMicrospace/Common/Utils.cs
index 04d3d14..cd614d2 100644
--- a/Wpf_AiSportsMicrospace/Common/Utils.cs
+++ b/Wpf_AiSportsMicrospace/Common/Utils.cs
@@ -215,73 +215,78 @@ namespace Wpf_AiSportsMicrospace.Common
             LoadGifToCache(relativePath);
             return _cache.GetValueOrDefault(relativePath);
         }
-
         public static List<StudentInfoDto> FacialRecognition(byte[] buffer, double[] xNorms)
         {
-            if (xNorms == null || xNorms.Length == 0)
-                throw new ArgumentException("xNorms 不能为空");
-
-            using var image = SharpImage.Image.Load<Rgba32>(buffer);
-
-            int imgWidth = image.Width;
-            int imgHeight = image.Height;
-            int rectHeight = imgHeight / 2;
-
-            // 1. 排序中心点
-            var sortedX = xNorms.OrderBy(x => x).ToList();
-            int faceCount = sortedX.Count;
-
-            // 2. 计算分割边界
-            var splitXs = new List<double>();
-            for (int i = 0; i < sortedX.Count - 1; i++)
-                splitXs.Add((sortedX[i] + sortedX[i + 1]) / 2.0);
-
-            // 3. 起止边界
-            splitXs.Insert(0, 0.0);
-            splitXs.Add(1.0);
-
-            // 4. 输出目录
-            string imgDir = Path.Combine(AppContext.BaseDirectory, "img");
-            Directory.CreateDirectory(imgDir);
-
-            var studentInfos = new List<StudentInfoDto>();
-
-            // 5. 循环裁剪 + 同步识别
-            for (int i = 0; i < faceCount; i++)
+            try
             {
-                double xStart = splitXs[i];
-                double xEnd = splitXs[i + 1];
+                if (xNorms == null || xNorms.Length == 0)
+                    return null;   // 不再抛异常，直接返回 null
 
-                int x1 = (int)(xStart * imgWidth);
-                int x2 = (int)(xEnd * imgWidth);
-                int w = Math.Max(1, x2 - x1);
+                using var image = SharpImage.Image.Load<Rgba32>(buffer);
 
-                var cropRect = new Rectangle(x1, 0, w, rectHeight);
+                int imgWidth = image.Width;
+                int imgHeight = image.Height;
+                int rectHeight = imgHeight / 2;
 
-                using var cropped = image.Clone(ctx => ctx.Crop(cropRect));
+                // 1. 排序中心点
+                var sortedX = xNorms.OrderBy(x => x).ToList();
+                int faceCount = sortedX.Count;
 
-                using var ms = new MemoryStream();
-                cropped.Save(ms, new JpegEncoder());
-                ms.Position = 0;
+                // 2. 计算分割边界
+                var splitXs = new List<double>();
+                for (int i = 0; i < sortedX.Count - 1; i++)
+                    splitXs.Add((sortedX[i] + sortedX[i + 1]) / 2.0);
 
-                string imgPath = Path.Combine(imgDir, $"crop_{i + 1}_{DateTime.Now:HHmmssfff}.jpg");
-                File.WriteAllBytes(imgPath, ms.ToArray());
+                // 3. 起止边界
+                splitXs.Insert(0, 0.0);
+                splitXs.Add(1.0);
 
-                string base64 = Convert.ToBase64String(ms.ToArray());
+                // 4. 输出目录
+                string imgDir = Path.Combine(AppContext.BaseDirectory, "img");
+                Directory.CreateDirectory(imgDir);
 
-                Console.WriteLine($"[{i + 1}] 范围: {xStart:0.00}-{xEnd:0.00}, 宽: {w}");
+                var studentInfos = new List<StudentInfoDto>();
 
-                // === 同步调用人脸识别接口 ===
-                var result = FaceRecognitionAsync(base64);
+                // 5. 循环裁剪 + 同步识别
+                for (int i = 0; i < faceCount; i++)
+                {
+                    double xStart = splitXs[i];
+                    double xEnd = splitXs[i + 1];
 
-                if (result != null)
-                    studentInfos.Add(result);
+                    int x1 = (int)(xStart * imgWidth);
+                    int x2 = (int)(xEnd * imgWidth);
+                    int w = Math.Max(1, x2 - x1);
+
+                    var cropRect = new Rectangle(x1, 0, w, rectHeight);
+
+                    using var cropped = image.Clone(ctx => ctx.Crop(cropRect));
+
+                    using var ms = new MemoryStream();
+                    cropped.Save(ms, new JpegEncoder());
+                    ms.Position = 0;
+
+                    string imgPath = Path.Combine(imgDir, $"crop_{i + 1}_{DateTime.Now:HHmmssfff}.jpg");
+                    File.WriteAllBytes(imgPath, ms.ToArray());
+
+                    string base64 = Convert.ToBase64String(ms.ToArray());
+
+                    Console.WriteLine($"[{i + 1}] 范围: {xStart:0.00}-{xEnd:0.00}, 宽: {w}");
+
+                    var result = FaceRecognitionAsync(base64);
+
+                    if (result != null)
+                        studentInfos.Add(result);
+                }
+
+                return studentInfos;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"FacialRecognition 异常: {ex.Message}");
+                return null;
             }
-
-            return studentInfos;
         }
 
-
         /// <summary>
         /// 调用人脸识别接口，返回学生信息
         /// </summary>