整理文件夹

2024-10-22 15:30:38 +08:00
parent 38b4268c67
commit 06cb92b7e0
15 changed files with 19 additions and 27 deletions
@@ -0,0 +1,60 @@
+
+using FellowOakDicom.Imaging;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.Formats.Jpeg;
+using SixLabors.ImageSharp.Processing;
+
+namespace IRaCIS.Core.Application.Helper;
+
+public static class ImageHelper
+{
+
+    // 采用ImageSharp组件  跨平台，不依赖windows 平台图像处理组件，这里大坑(net 6 下，之前由于Dicom处理最新组件 依赖了这个库的一个旧版本，导致缩略图bug，单独升级依赖组件才解决)
+    public static void ResizeSave(string filePath, string? fileStorePath)
+    {
+
+        fileStorePath = fileStorePath ?? filePath + ".preview.jpeg";
+
+        using (var image = SixLabors.ImageSharp.Image.Load(filePath))
+        {
+
+            image.Mutate(x => x.Resize(500, 500));
+
+            image.Save(fileStorePath);
+
+        }
+    }
+
+
+
+    public static Stream RenderPreviewJpeg(string filePath)
+    {
+        string jpegPath = filePath + ".preview.jpg";
+
+        if (!File.Exists(jpegPath))
+        {
+            using (Stream stream = new FileStream(jpegPath, FileMode.Create))
+            {
+                DicomImage image = new DicomImage(filePath);
+
+                var sharpimage = image.RenderImage().AsSharpImage();
+
+                sharpimage.Save(stream, new JpegEncoder());
+
+            }
+        }
+
+        return new FileStream(jpegPath, FileMode.Open);
+    }
+
+    public static void RemovePreviewJpeg(string filePath)
+    {
+        string jpegPath = filePath + ".preview.jpg";
+        if (File.Exists(jpegPath)) File.Delete(jpegPath);
+    }
+
+
+}
+
+
+