Merge pull request #1 from FarokhCode/master

Adding more distortion
arsanjani · Jul 17, 2023 · 98834e8 · 98834e8
2 parents e7aade1 + 362454c
commit 98834e8
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/EasyCaptcha/Service/CaptchaService.cs b/EasyCaptcha/Service/CaptchaService.cs
@@ -135,7 +135,17 @@ public byte[] CreateCAPTCHAImage(string text, string backgroundColor, string for
             SolidBrush objSolidBrushColor = new SolidBrush(GetColor(foreColor));
             objGraphics.FillPath(objSolidBrushColor, objGraphicsPath);
             #region Distortion
-
+            //this code add ten random line in captcha image
+             Random rnd = new Random();
+            for (int i = 0; i < 10; i++)
+            {
+                // calculate line start and end point here using the Random class:
+                int x0 = rnd.Next(0, width);
+                int y0 = rnd.Next(0, height);
+                int x1 = rnd.Next(0, width);
+                int y1 = rnd.Next(0, height);
+                objGraphics.DrawLine(Pens.Gray, x0, y0, x1, x1);
+            }
             double distort = new Random().Next(3, 6) * (new Random().Next(3) == 1 ? 1 : -1);
             using (Bitmap copy = (Bitmap)objBitmap.Clone())
             {