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Load an image into a byte-array with C#

Load an image into a byte-array with C#
April 10, 2019 1 min read BEN ABT
.NET Csharp

This article was written in 2019. Versions, tools and recommendations may have changed since then. Newer posts are collected under .NET.

This pretty simply snippet exports your Image into a byte-array.

C#
1public static byte[] ToByteArray(this System.Drawing.Image image)
2{
3    using(MemoryStream memoryStream = new MemoryStream())
4    {
5        image.Save(memoryStream);
6        return memoryStream.ToArray();
7    }
8}

Usage:

C#
1System.Drawing.Image myImage = .....
2
3byte[] imageAsByteArray = myImage.ToByteArray();

Hint: ImageSharp

ImageSharp uses the same signature to export bytes into a MemoryStream

C#
1    SixLabors.ImageSharp.Image myImage = ...
2    using(MemoryStream memoryStream = new MemoryStream())
3    {
4        myImage.Save(outStream);
5        return memoryStream.ToArray();
6    }

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BEN ABT

BEN ABT

Ben is Chief Engineering Officer and Principal Software Engineer at Medialesson.de, with a strong focus on .NET and Microsoft Azure. In his professional role, he designs and builds highly scalable platforms for hybrid and cloud-based scenarios. He also advises companies and C-levels on migrating to the sovereign cloud.

He runs myCSharp.de, the largest and most active German-speaking C# community forum, actively contributes to both his own and external open-source projects and regularly shares his knowledge through his blog, at community events, conferences and as a writer for technical magazines.

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