diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
index 2748bc2..bb16fb4 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
@@ -1361,9 +1361,10 @@ namespace JoyD.Windows.CS
                     
                     // 在温差层图像上绘制/擦除
                     using (Graphics g = Graphics.FromImage(_tempDiffOverlayImage))
-                    {                        
-                        g.SmoothingMode = SmoothingMode.AntiAlias;
-                        g.InterpolationMode = InterpolationMode.HighQualityBicubic;
+                    {                         
+                        // 取消抗锯齿，使用最近邻插值，获得边界清晰的图像
+                        g.SmoothingMode = SmoothingMode.None;
+                        g.InterpolationMode = InterpolationMode.NearestNeighbor;
                         
                         if (_isEraseMode)
                         {                            
@@ -1883,6 +1884,9 @@ namespace JoyD.Windows.CS
             {
                 // 计算缩放后的目标矩形
                 Rectangle destRect = new Rectangle(0, 0, picBoxTemp.ClientSize.Width, picBoxTemp.ClientSize.Height);
+                // 设置绘制质量为无抗锯齿，确保边界清晰
+                e.Graphics.SmoothingMode = SmoothingMode.None;
+                e.Graphics.InterpolationMode = InterpolationMode.NearestNeighbor;
                 // 绘制缩放后的温差层
                 e.Graphics.DrawImage(_tempDiffOverlayImage, destRect, 0, 0, _tempDiffOverlayImage.Width, _tempDiffOverlayImage.Height, GraphicsUnit.Pixel);
             }