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Create New Bitmap From Image

//-------------------------------------------------------------------------- //  //  Copyright (c) Microsoft Corporation.  All rights reserved.  //  //  File: Utilities.cs // //-------------------------------------------------------------------------- using System; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Runtime.Serialization.Formatters.Binary; namespace ParallelMorph {     /// <summary>Helper utilities.</summary>     public static class Utilities     {         /// <summary>Clones an image into a new Bitmap.</summary>         /// <param name="source">The source image.</param>         /// <returns>The new Bitmap.</returns>         public static Bitmap CreateNewBitmapFrom(Image source)          {              return CreateNewBitmapFrom(source, 1);          }         /// <summary>Creates a copy of the source image by scaling it with the specified scale value.</summary>         /// <param name="source">The source image.</param>         /// <param name="scalingFactor">The scaling factor to use when generating the target image.</param>         /// <returns>The new Bitmap.</returns>         public static Bitmap CreateNewBitmapFrom(Image source, float scalingFactor)         {             return CreateNewBitmapFrom(source, (int)(source.Width*scalingFactor), (int)(source.Height*scalingFactor));         }         /// <summary>Creates a copy of the source image using the specified target width and height.</summary>         /// <param name="source">The source image.</param>         /// <param name="targetWidth">The target width for the generated image.</param>         /// <param name="targetHeight">The target height for the generated image.</param>         /// <returns>The new Bitmap.</returns>         public static Bitmap CreateNewBitmapFrom(Image source, int targetWidth, int targetHeight)         {             var newBmp = new Bitmap(targetWidth, targetHeight, PixelFormat.Format32bppArgb);             using (var g = Graphics.FromImage(newBmp)) g.DrawImage(source, 0, 0, newBmp.Width, newBmp.Height);             return newBmp;         }         /// <summary>Retrieves an element from a Tuple by item number.</summary>         /// <typeparam name="T">Specifies the type of data contained in the tuple.</typeparam>         /// <param name="tuple">The tuple.</param>         /// <param name="itemNumber">The item number.</param>         /// <returns>Item1 if itemNumber is 0, otherwise Item2 if itemNumber is 1.</returns>         public static T Item<T>(this Tuple<T, T> tuple, int itemNumber)         {             switch (itemNumber)             {                 case 0: return tuple.Item1;                 case 1: return tuple.Item2;                 default: throw new ArgumentOutOfRangeException("itemNumber");             }         }     } }