How can I convert byte[] to BitmapImage?

I have a byte[] that represents the raw data of an image. I would like to convert it to a BitmapImage.

I tried several examples I found but I kept getting the following exception

"No imaging component suitable to complete this operation was found."

I think it is because my byte[] does not actually represent an Image but only the raw bits. so my question is as mentioned above is how to convert a byte[] of raw bits to a BitmapImage.

Solution

When your byte array contains a bitmap's raw pixel data, you may create a BitmapSource (which is the base class of BitmapImage) by the static method BitmapSource.Create.

However, you need to specify a few parameters of the bitmap. You must know in advance the width and height and also the PixelFormat of the buffer.

byte[] buffer = ...;

var width = 100; // for example
var height = 100; // for example
var dpiX = 96d;
var dpiY = 96d;
var pixelFormat = PixelFormats.Pbgra32; // for example
var stride = (width * pixelFormat.BitsPerPixel + 7) / 8;

var bitmap = BitmapSource.Create(width, height, dpiX, dpiY,
                                 pixelFormat, null, buffer, stride);