java image bitmap_Image与Bitmap的区别及相互转换
///
///将图片Image转换成Byte[]///
/// image对象
/// 后缀名
///
public static byte[] ImageToBytes(Image Image, System.Drawing.Imaging.ImageFormat imageFormat)
{if (Image == null) { return null; }byte[] data = http://www.cnblogs.com/peasana/archive/2012/02/13/null;
using (MemoryStream ms= newMemoryStream())
{using (Bitmap Bitmap = newBitmap(Image))
{
Bitmap.Save(ms, imageFormat);
ms.Position= 0;
data= http://www.cnblogs.com/peasana/archive/2012/02/13/new byte[ms.Length];
ms.Read(data,0, Convert.ToInt32(ms.Length));
ms.Flush();
}
}returndata;
}///
///byte[]转换成Image///
/// 二进制图片流
/// Image
public static System.Drawing.Image byteArrayToImage(byte[] byteArrayIn)
{if (byteArrayIn == null)return null;using (System.IO.MemoryStream ms = newSystem.IO.MemoryStream(byteArrayIn))
{
System.Drawing.Image returnImage=System.Drawing.Image.FromStream(ms);
ms.Flush();returnreturnImage;
}
}//Image转换Bitmap
1. Bitmap img = newBitmap(imgSelect.Image);2. Bitmap bmp =(Bitmap)pictureBox1.Image;//Bitmap转换成Image
usingSystem.IO;private staticSystem.Windows.Controls.Image Bitmap2Image(System.Drawing.Bitmap Bi)
{
MemoryStream ms= newMemoryStream();
Bi.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
BitmapImage bImage= newBitmapImage();
bImage.BeginInit();
bImage.StreamSource= newMemoryStream(ms.ToArray());
bImage.EndInit();
ms.Dispose();
Bi.Dispose();
System.Windows.Controls.Image i= newSystem.Windows.Controls.Image();
i.Source=bImage;returni ;
}//byte[] 转换 Bitmap
public static Bitmap BytesToBitmap(byte[] Bytes)
{
MemoryStream stream= null;try{
stream= newMemoryStream(Bytes);return new Bitmap((Image)newBitmap(stream));
}catch(ArgumentNullException ex)
{throwex;
}catch(ArgumentException ex)
{throwex;
}finally{
stream.Close();
}
}//Bitmap转byte[]
public static byte[] BitmapToBytes(Bitmap Bitmap)
{
MemoryStream ms= null;try{
ms= newMemoryStream();
Bitmap.Save(ms, Bitmap.RawFormat);byte[] byteImage = newByte[ms.Length];
byteImage=ms.ToArray();returnbyteImage;
}catch(ArgumentNullException ex)
{throwex;
}finally{
ms.Close();
}
}