Recently I was looking for a class which could convert a System.Drawing.Image to byte[] array and vice versa.
After a lot of searching on Google, I realised that it would be faster for me to write this class and also share it.
The class which I wrote is called ImageConverter.cs. The class has two methods.
First method: Convert Image to byte[] array:
public byte[] imageToByteArray(System.Drawing.Image imageIn)
{
MemoryStream ms = new MemoryStream();
imageIn.Save(ms,System.Drawing.Imaging.ImageFormat.Gif);
return ms.ToArray();
}
This method uses the System.Drawing.Image.Save method to save the image to a memorystream. The memorystream can then be used to return a byte array using the ToArray() method in the MemoryStream class.
Second method: Convert byte[] array to Image:
public Image byteArrayToImage(byte[] byteArrayIn)
{
MemoryStream ms = new MemoryStream(byteArrayIn);
Image returnImage = Image.FromStream(ms);
return returnImage;
}
This method uses the Image.FromStream method in the Image class to create a method from a memorystream which has been created using a byte array. The image thus created is returned in this method.
The way I happen to use this method was to transport an image to a web service, by converting it to a byte array and vice-versa.
Hope this class is useful to all.
