来自文件的BitmapSource

Question

如何从图像文件加载BitmapSource？

Answer 1

这对我来说很有效：

BitmapSource bSource = new BitmapImage(new Uri("c:\\image.bmp"));
BitmapImage bImage = new BitmapImage(new Uri("c:\\image.bmp"));

Answer 2

您可以将图像的字节从磁盘读取到字节数组中，然后创建BitmapImage对象。

var stream = new MemoryStream(imageBytes);
var img = new System.Windows.Media.Imaging.BitmapImage();

img.BeginInit();
img.StreamSource = stream;
img.EndInit();

return img;

Answer 3

代码如下：

FileStream fileStream = 
    new FileStream(fileName, FileMode.Open, FileAccess.Read);

var img = new System.Windows.Media.Imaging.BitmapImage();
img.BeginInit();
img.StreamSource = fileStream;
img.EndInit();