/// <summary>
/// 把图像文件转化为字节数组
/// </summary>
/// <param name="imageFile"></param>
/// <returns></returns>
public static byte[] Image2Bytes(string imageFile)
{
using (var ms = new MemoryStream())
{
using (Image img = Image.FromFile(imageFile))
{
img.Save(ms, GetImageFormat(imageFile));
return(StreamUtility.Stream2Bytes(ms));
}
}
}
/// <summary>
/// 把字节数组转化为图像对象
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public static Image Bytes2Image(byte[] bytes)
{
try
{
return(Image.FromStream(StreamUtility.Bytes2Stream(bytes)));
}
catch
{
return(null);
}
}
/// <summary>
/// 把图像转化为字节数组
/// </summary>
/// <param name="img"></param>
/// <returns></returns>
public static byte[] Image2Bytes(Image img)
{
if (img == null)
{
return(null);
}
using (Stream s = new MemoryStream())
{
img.Save(s, ImageFormat.Jpeg);
return(StreamUtility.Stream2Bytes(s));
}
}