How to Convert Images to Byte Arrays and Back Again in C#?

Conversion between images and byte arrays in C#

Converting images to byte arrays and back is a common operation in many software applications. This conversion is especially useful when dealing with image storage, transfer, and processing.

Convert image to byte array

Convert the image to a byte array, you can follow the steps below:

1. Create a MemoryStream object.
2. Use the Save method to save the image to MemoryStream.
3. Convert MemoryStream to byte array using ToArray method.

Code example:

<code class="language-csharp">public byte[] ImageToByteArray(System.Drawing.Image imageIn)
{
   using (var ms = new MemoryStream())
   {
      imageIn.Save(ms, imageIn.RawFormat);
      return ms.ToArray();
   }
}</code>

Convert byte array to image

Convert byte array to image, you can follow these steps:

1. Create a MemoryStream object and initialize it with a byte array.
2. Create a Bitmap object from MemoryStream.

Code example:

<code class="language-csharp">public System.Drawing.Image ByteArrayToImage(byte[] imageByteArray)
{
   using (var ms = new MemoryStream(imageByteArray))
   {
      return System.Drawing.Image.FromStream(ms);
   }
}</code>

These conversion methods are essential for processing images in a variety of applications, such as saving images to databases, transferring images over the network, and performing image processing operations.

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