web UI

VisionBuilder.UI.Blazor/Helpers/MatExtensions.cs

@@ -0,0 +1,16 @@
+using OpenCvSharp;
+
+namespace VisionBuilder.UI.Blazor.Helpers;
+
+public static class MatExtensions
+{
+    public static string ToBase64DataUri(this Mat mat, int quality = 75)
+    {
+        if (mat == null || mat.Empty())
+            return string.Empty;
+
+        Cv2.ImEncode(".jpg", mat, out var buf,
+            new ImageEncodingParam(ImwriteFlags.JpegQuality, quality));
+        return $"data:image/jpeg;base64,{Convert.ToBase64String(buf)}";
+    }
+}