Tif文件转换成GIF列表

代码

  ///   <summary>
         ///  将TIF文件转换为GIF文件列表
         ///   </summary>
         ///   <param name="fileName"> 要转换的TIF文件 </param>         
         ///   <returns> 转换后生成的GIF文件路径 </returns>
         public   static  IList < string >  ConvertTifToGif( string  fileName)
        {
            IList < string >  list  =   new  List < string > ();

             string  dic  =  AppDomain.CurrentDomain.BaseDirectory  +   " \\tempgif\\ " ;

             if  ( ! Directory.Exists(dic))
            {
                Directory.CreateDirectory(dic);
            }

             if  ( string .IsNullOrEmpty(fileName))
            {
                 throw   new  ArgumentException( " 转换的TIF文件路径不能为空 " );
            }

            FileInfo file  =   new  FileInfo(fileName);

             if  ( ! file.Exists)
            {
                 throw   new  FileNotFoundException( " 待转换的TIF文件不存在 " );
            }

            Image imgObj  =  Image.FromFile(file.FullName);


             // Image imgObj = imgObj2.GetThumbnailImage(imgObj2.Width / 3 * 2, imgObj2.Height / 3 * 2, null, IntPtr.Zero);  // Image.FromFile(file.FullName);

            Guid objGuid  =  (Guid)imgObj.FrameDimensionsList.GetValue( 0 );

            FrameDimension objDimension  =   new  FrameDimension(objGuid);
            

             int  totalImage  =  imgObj.GetFrameCount(objDimension);

             for  ( int  index  =   0 ; index  <  totalImage; index ++ )
            {
                 string  gifPath  =  dic  +  file.Name.Substring( 0 , file.Name.LastIndexOf( ' . ' ))  +   " _ "   +  index  +   " .gif " ;

                 if  (File.Exists(gifPath))
                {
                    File.Delete(gifPath);
                }

                // EncoderParameter en = new EncoderParameter();

                imgObj.SelectActiveFrame(objDimension, index);
                imgObj.Save(gifPath, ImageFormat.Gif);
                FileInfo item  =   new  FileInfo(gifPath);
                list.Add( " tempgif\\ "   +  item.Name);
            }

             return  list;
        }