How to Convert from Type Image to Type Bitmapimage?
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 Img...
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 img = Image.FromStream(memStream);
Now I have access to this image in memory. The thing is I need to convert this to type BitmapImage in order to use it in my solution.
NOTE: I need to convert it to type BitmapImage not type Bitmap. I haven't been able to figure it out because type BitmapImage takes in a Uri for it's constructor.
4 Answers
Bitmap img = (Bitmap) Image.FromStream(memStream);
BitmapImage bmImg = new BitmapImage();
using (MemoryStream memStream2 = new MemoryStream())
{
img.Save(memStream2, System.Drawing.Imaging.ImageFormat.Png);
memStream2.Position = 0;
bmImg.BeginInit();
bmImg.CacheOption = BitmapCacheOption.OnLoad;
bmImg.UriSource = null;
bmImg.StreamSource = memStream2;
bmImg.EndInit();
}
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;
}
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
You can make one of the size you want, and then copy pixels over to it.
Saving in a memory stream doesn't work for images created in memory. So I improved the already existing answers as follows:
ImageConverter converter = new ImageConverter();
byte[] buffer = (byte[])converter.ConvertTo(image, typeof(byte[]));
MemoryStream loadStream = new MemoryStream(buffer);
BitmapImage returnValue = new();
returnValue.BeginInit();
returnValue.StreamSource = loadStream;
returnValue.EndInit();
return returnValue;
Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.
