WPF Image控件 Source: Byte[] ,BitmapImage 相互转换
原创
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文件转为byte[]
FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read);
byte[] desBytes = new byte[fs.Length];
fs.Read(desBytes, 0, desBytes.Length);
fs.Close();
byte[]转换为BitmapImage:
public static BitmapImage ByteArrayToBitmapImage(byte[] byteArray)
{
BitmapImage bmp = null;
try
{
bmp = new BitmapImage();
bmp.BeginInit();
bmp.StreamSource = new MemoryStream(byteArray);
bmp.EndInit();
}
catch
{
bmp = null;
}
return bmp;
}
BitmapImage转换为byte[]:
public static byte[] BitmapImageToByteArray(BitmapImage bmp)
{
byte[] byteArray = null;
try
{
Stream sMarket = bmp.StreamSource;
if (sMarket != null && sMarket.Length > 0)
{
//很重要,因为Position经常位于Stream的末尾,导致下面读取到的长度为0。
sMarket.Position = 0;
using (BinaryReader br = new BinaryReader(sMarket))
{
byteArray = br.ReadBytes((int)sMarket.Length);
}
}
}
catch
{
//other exception handling
}
return byteArray;
}