diff --git a/src/OpenCvSharp/Modules/core/Struct/Size.cs b/src/OpenCvSharp/Modules/core/Struct/Size.cs
index 8aa695ba0..ca70a0d55 100644
--- a/src/OpenCvSharp/Modules/core/Struct/Size.cs
+++ b/src/OpenCvSharp/Modules/core/Struct/Size.cs
@@ -5,7 +5,7 @@
 namespace OpenCvSharp;
 
 /// <summary>
-/// 
+///
 /// </summary>
 [Serializable]
 [StructLayout(LayoutKind.Sequential)]
@@ -13,12 +13,12 @@ namespace OpenCvSharp;
 public struct Size : IEquatable<Size>
 {
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public int Width;
 
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public int Height;
 
@@ -73,22 +73,32 @@ public Size(double width, double height)
         return !lhs.Equals(rhs);
     }
 
+    public static explicit operator Size(Size2d size)
+    {
+        return new(size.Width, size.Height);
+    }
+
+    public static explicit operator Size(Size2f size)
+    {
+        return new(size.Width, size.Height);
+    }
+
     #endregion
 
     #region Override
-        
+
     /// <inheritdoc />
     public readonly bool Equals(Size other)
     {
         return Width == other.Width && Height == other.Height;
     }
-        
+
     /// <inheritdoc />
     public override readonly bool Equals(object? obj)
     {
         return obj is Size other && Equals(other);
     }
-        
+
     /// <inheritdoc />
     public override readonly int GetHashCode()
     {
diff --git a/src/OpenCvSharp/Modules/core/Struct/Size2d.cs b/src/OpenCvSharp/Modules/core/Struct/Size2d.cs
index aa6580e57..7dbd09ab7 100644
--- a/src/OpenCvSharp/Modules/core/Struct/Size2d.cs
+++ b/src/OpenCvSharp/Modules/core/Struct/Size2d.cs
@@ -6,19 +6,19 @@
 namespace OpenCvSharp;
 
 /// <summary>
-/// 
+///
 /// </summary>
 [Serializable]
 [StructLayout(LayoutKind.Sequential)]
 public struct Size2d : IEquatable<Size2d>
 {
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public double Width;
 
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public double Height;
 
@@ -68,22 +68,32 @@ public Size2d(double width, double height)
         return !lhs.Equals(rhs);
     }
 
+    public static implicit operator Size2d(Size size)
+    {
+        return new(size.Width, size.Height);
+    }
+
+    public static implicit operator Size2d(Size2f size)
+    {
+        return new(size.Width, size.Height);
+    }
+
     #endregion
 
     #region Override
-        
+
     /// <inheritdoc />
     public readonly bool Equals(Size2d other)
     {
         return Width.Equals(other.Width) && Height.Equals(other.Height);
     }
-        
+
     /// <inheritdoc />
     public override readonly bool Equals(object? obj)
     {
         return obj is Size2d other && Equals(other);
     }
-        
+
     /// <inheritdoc />
     public override readonly int GetHashCode()
     {
diff --git a/src/OpenCvSharp/Modules/core/Struct/Size2f.cs b/src/OpenCvSharp/Modules/core/Struct/Size2f.cs
index caf63e798..c57105137 100644
--- a/src/OpenCvSharp/Modules/core/Struct/Size2f.cs
+++ b/src/OpenCvSharp/Modules/core/Struct/Size2f.cs
@@ -6,7 +6,7 @@
 namespace OpenCvSharp;
 
 /// <summary>
-/// 
+///
 /// </summary>
 [Serializable]
 [StructLayout(LayoutKind.Sequential)]
@@ -14,12 +14,12 @@ namespace OpenCvSharp;
 public struct Size2f : IEquatable<Size2f>
 {
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public float Width;
 
     /// <summary>
-    /// 
+    ///
     /// </summary>
     public float Height;
 
@@ -69,22 +69,32 @@ public Size2f(double width, double height)
         return !lhs.Equals(rhs);
     }
 
+    public static implicit operator Size2f(Size size)
+    {
+        return new(size.Width, size.Height);
+    }
+
+    public static explicit operator Size2f(Size2d size)
+    {
+        return new(size.Width, size.Height);
+    }
+
     #endregion
 
     #region Override
-        
+
     /// <inheritdoc />
     public readonly bool Equals(Size2f other)
     {
         return Width.Equals(other.Width) && Height.Equals(other.Height);
     }
-        
+
     /// <inheritdoc />
     public override readonly bool Equals(object? obj)
     {
         return obj is Size2f other && Equals(other);
     }
-        
+
     /// <inheritdoc />
     public override readonly int GetHashCode()
     {