C# ͼƬ²Ã¼ô

/// <summary>
/// ËõС²Ã¼ôͼƬ
/// </summary>
/// <param name="int_Width">ÒªËõС²Ã¼ôͼƬ¿í¶È</param>
/// <param name="int_Height">ÒªËõС²Ã¼ôͼƬ³¤¶È</param>
/// <param name="input_ImgUrl">Òª´¦ÀíͼƬ·¾¶</param>
/// <param name="out_ImgUrl">´¦ÀíÍê±ÏͼƬ·¾¶</param>
public void ImgReduceCutOut(int int_Width, int int_Height, string input_ImgUrl, string out_ImgUrl)
{
// £½£½£½ÉÏ´«±ê׼ͼ´óС£½£½£½
int int_Standard_Width = 160;
int int_Standard_Height = 160;
int Reduce_Width = 0; // ËõСµÄ¿í¶È
int Reduce_Height = 0; // ËõСµÄ¸ß¶È
int CutOut_Width = 0; // ²Ã¼ôµÄ¿í¶È
int CutOut_Height = 0; // ²Ã¼ôµÄ¸ß¶È
int level = 100; //ËõÂÔͼµÄÖÊÁ¿ 1-100µÄ·¶Î§
// £½£½£½»ñµÃËõС£¬²Ã¼ô´óС£½£½£½
if (int_Standard_Height * int_Width / int_Standard_Width > int_Height)
{
Reduce_Width = int_Width;
Reduce_Height = int_Standard_Height * int_Width / int_Standard_Width;
CutOut_Width = int_Width;
CutOut_Height = int_Height;
}
else if (int_Standard_Height * int_Width / int_Standard_Width < int_Height)
{
Reduce_Width = int_Standard_Width * int_Height / int_Standard_Height;
Reduce_Height = int_Height;
CutOut_Width = int_Width;
CutOut_Height = int_Height;
}
else
{
Reduce_Width = int_Width;
Reduce_Height = int_Height;
CutOut_Width = int_Width;
CutOut_Height = int_Height;
}
// £½£½£½Í¨¹ýÁ¬½Ó´´½¨Image¶ÔÏó£½£½£½
System.Drawing.Image oldimage = System.Drawing.Image.fromFile(Server.MapPath(input_ImgUrl));