C＃加载JPG文件，解压的BitmapImage [英] C# Load JPG file, extract BitmapImage

问题描述

我试图提取一个JPG一个BitmapImage的。这是code我有：

I am trying to extract a BitmapImage from a JPG. This is the code I have:

FileStream fIn = new FileStream(sourceFileName, FileMode.Open); // source JPG
Bitmap dImg = new Bitmap(fIn);
MemoryStream ms = new MemoryStream();
dImg.Save(ms, ImageFormat.Jpeg);
image = new BitmapImage();
image.BeginInit();
image.StreamSource = new MemoryStream(ms.ToArray());
image.EndInit();
ms.Close();

图像回来了0×0的形象，这当然意味着它没有工作。我该怎么做呢？

image comes back with a 0 × 0 image, which of course means it didn't work. How do I do this?

推荐答案

试试这个：

public void Load(string fileName) 
{

    using(Stream BitmapStream = System.IO.File.Open(fileName,System.IO.FileMode.Open ))
    {
         Image img = Image.FromStream(BitmapStream);

         mBitmap=new Bitmap(img);
         //...do whatever
    }
}

或者，你可以做到这一点（源）：

Bitmap myBmp = Bitmap.FromFile("path here");

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