How to convert from type Image to type BitmapImage?

Question

Does anyone know how to create a BitmapImage from an Image? Here is the code that I\'m working with:

MemoryStream memStream = new MemoryStream(bytes);
Image          


        

Answer 1

Are you sure you need BitmapImage, not BitmapSource? BitmapImage is a subclass of BitmapSource specifically for making a source in XAML (from a URI). There are many other BitmapSource choices -- one of the other choices might be better.

For example, WriteableBitmap

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.writeablebitmap.aspx

You can make one of the size you want, and then copy pixels over to it.

Answer 2

Bitmap      img   = (Bitmap) Image.FromStream(memStream);
BitmapImage bmImg = new BitmapImage();

using (MemoryStream memStream2 = new MemoryStream()) 
{
   img.Save(memStream2, System.Drawing.Imaging.ImageFormat.Png);
   ms.Position = 0;

   bmImg.BeginInit();
   bmImg.CacheOption = BitmapCacheOption.OnLoad;
   bmImg.UriSource = null;
   bmImg.StreamSource = memStream2;
   bmImg.EndInit();
}

Answer 3

From this post

public BitmapImage ImageFromBuffer(Byte[] bytes)
{
    MemoryStream stream = new MemoryStream(bytes);
    BitmapImage image = new BitmapImage();
    image.BeginInit();
    image.StreamSource = stream;
    image.EndInit();
    return image;
}