如何把Gif类型的图像转换成bmp

Question

string originalFilename = "c:\\222.gif";
string stroutFile = "c:\\222.bmp";
System.Drawing.Image image = System.Drawing.Image.FromFile(originalFilename);
image.Save(stroutFile, System.Drawing.Imaging.ImageFormat.Bmp);

Answer 1

可不可将BMP格式图片读到byte[]中后将其转变成jpeg格式的byte[]流。

Answer 2

已经有了类似的工具了?你可以DOWNLOAD啊?
不一定要自己写啊

Answer 3

try
{
this.openFileDialog1.Filter = "BMP 图片 (*.bmp)|*.bmp|JPG 图片 (*.jpg)|*.jpg|GIF 图片 (*.gif)|*.gif|JPEG 图片(*.jpeg)|*.jpeg\" ";
openFileDialog1.Title = "请选择图片";
if(this.openFileDialog1.ShowDialog()==DialogResult.OK)
{
this.pictureBox1.Image=Image.FromFile(this.openFileDialog1.FileName); }
try
{
MemoryStream mstream = new MemoryStream ();
pictureBox1.Image.Save (mstream, System.Drawing.Imaging.ImageFormat.Bmp);
theData = new Byte [mstream.Length ];
mstream.Position = 0;
mstream.Read (theData,0,Convert.ToInt32 (mstream.Length ));
mstream.Close();
}
catch
{
FileStream fs=new FileStream(this.openFileDialog1.FileName,FileMode.OpenOrCreate,FileAccess.Read);
theData=new byte[fs.Length];
fs.Read(theData,0,System.Convert.ToInt32(fs.Length));
fs.Close();
}
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}