How To Resize A Image Using C# Or VB.NET - CODE SNIPPETS

Skip to content .NET C# VB.Net How to resize a image using C# or VB.NET

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Jun 2, 2014 .net, bitmap, C#, csharp, Drawing, image, resize, System, System.Drawing, vb.net, Visual Studio 2005, Visual Studio 2008, Visual Studio 2010, Visual Studio 2012, Visual Studio 2013

To resize a image using C# or VB.NET you can use the following snippet.

Sample C#

public static Image ResizeImage(Image img, int width, int height) { var newImage = new Bitmap(width, height); using (var gr = Graphics.FromImage(newImage)) { gr.SmoothingMode = SmoothingMode.HighQuality; gr.InterpolationMode = InterpolationMode.HighQualityBicubic; gr.PixelOffsetMode = PixelOffsetMode.HighQuality; gr.DrawImage(img, new Rectangle(0, 0, width, height)); } return newImage; } public static Image ResizeImage(Image img, Size size) { return ResizeImage(img, size.Width, size.Height); } public static Image ResizeImage(Bitmap bmp, int width, int height) { return ResizeImage((Image)bmp, width, height); } public static Image ResizeImage(Bitmap bmp, Size size) { return ResizeImage((Image)bmp, size.Width, size.Height); }

Sample VB.NET

Public Shared Function ResizeImage(img As Image, width As Integer, height As Integer) As Image Dim newImage = New Bitmap(width, height) Using gr = Graphics.FromImage(newImage) gr.SmoothingMode = SmoothingMode.HighQuality gr.InterpolationMode = InterpolationMode.HighQualityBicubic gr.PixelOffsetMode = PixelOffsetMode.HighQuality gr.DrawImage(img, New Rectangle(0, 0, width, height)) End Using Return newImage End Function Public Shared Function ResizeImage(img As Image, size As Size) As Image Return ResizeImage(img, size.Width, size.Height) End Function Public Shared Function ResizeImage(bmp As Bitmap, width As Integer, height As Integer) As Image Return ResizeImage(DirectCast(bmp, Image), width, height) End Function Public Shared Function ResizeImage(bmp As Bitmap, size As Size) As Image Return ResizeImage(DirectCast(bmp, Image), size.Width, size.Height) End Function

Here are the same methods as Extensions Methods

Sample C#

public static Image ResizeImage(this Image img, int width, int height) { var newImage = new Bitmap(width, height); using (var gr = Graphics.FromImage(newImage)) { gr.SmoothingMode = SmoothingMode.HighQuality; gr.InterpolationMode = InterpolationMode.HighQualityBicubic; gr.PixelOffsetMode = PixelOffsetMode.HighQuality; gr.DrawImage(img, new Rectangle(0, 0, width, height)); } return newImage; } public static Image ResizeImage(this Image img, Size size) { return ResizeImage(img, size.Width, size.Height); } public static Image ResizeImage(this Bitmap bmp, int width, int height) { return ResizeImage((Image)bmp, width, height); } public static Image ResizeImage(this Bitmap bmp, Size size) { return ResizeImage((Image)bmp, size.Width, size.Height); }

Sample VB.NET

<System.Runtime.CompilerServices.Extension> _ Public Shared Function ResizeImage(img As Image, width As Integer, height As Integer) As Image Dim newImage = New Bitmap(width, height) Using gr = Graphics.FromImage(newImage) gr.SmoothingMode = SmoothingMode.HighQuality gr.InterpolationMode = InterpolationMode.HighQualityBicubic gr.PixelOffsetMode = PixelOffsetMode.HighQuality gr.DrawImage(img, New Rectangle(0, 0, width, height)) End Using Return newImage End Function <System.Runtime.CompilerServices.Extension> _ Public Shared Function ResizeImage(img As Image, size As Size) As Image Return ResizeImage(img, size.Width, size.Height) End Function <System.Runtime.CompilerServices.Extension> _ Public Shared Function ResizeImage(bmp As Bitmap, width As Integer, height As Integer) As Image Return ResizeImage(DirectCast(bmp, Image), width, height) End Function <System.Runtime.CompilerServices.Extension> _ Public Shared Function ResizeImage(bmp As Bitmap, size As Size) As Image Return ResizeImage(DirectCast(bmp, Image), size.Width, size.Height) End Function

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One thought on “How to resize a image using C# or VB.NET”

1. RT @CodeSnippetsNET: How to resize a image using C# or http://t.co/85naMTtT4u: http://t.co/g8Jj6WRS7j #csharp #vb #dotnet #winforms #progra…

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