C#中如何把多個圖片合為一個Tiff文件

功能：

合並多個圖片為一個TIFF文件

效果圖：

第二頁

第三頁

功能函數實現：

public bool SaveMultipage(Image[] bmp, string location, string type)  
   {  
       if (bmp != null)  
       {  
           try
           {  
               File.Delete(location);  
                     
               var codecInfo = getCodecForstring(type);  
      
               if (bmp.Length == 1)  
               {  
                   var iparams = new EncoderParameters(1);  
                   var iparam = Encoder.Compression;  
                   var iparamPara = new EncoderParameter(iparam, (long)(EncoderValue.CompressionNone));  
      
                   iparams.Param[0] = iparamPara;  
                   bmp[0].Save(location, codecInfo, iparams);  
               }  
               else if (bmp.Length > 1)  
               {  
                   // Save the first page (frame).
				   // URL：http://www.bianceng.cn/Programming/csharp/201410/45752.htm 
                   var encoderParam1 = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.MultiFrame);  
                   var encoderParam2 = new EncoderParameter(Encoder.Compression,  
                                                            (long) EncoderValue.CompressionNone);  
      
                   var encoderParams = new EncoderParameters(2);  
                   encoderParams.Param[0] = encoderParam1;  
                   encoderParams.Param[1] = encoderParam2;  
      
                   bmp[0].Save(location, codecInfo, encoderParams);  
      
                   for (int i = 1; i < bmp.Length; i++)  
                   {  
                       if (bmp[i] == null)  
                           break;  
      
                       encoderParams.Param[0] = encoderParam1;  
                       encoderParams.Param[1] = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.FrameDimensionPage);  
                       bmp[0].SaveAdd(bmp[i], encoderParams);  
                   }  
      
                   encoderParams.Param[0] = new EncoderParameter(Encoder.SaveFlag, (long)EncoderValue.Flush);  
                   bmp[0].SaveAdd(encoderParams);  
               }  
               return true;  
           }  
           catch (Exception ee)  
           {  
               throw new Exception(ee.Message + "  Error in saving as multipage ");  
           }  
       }  
      
       return false;  
   }  
      
   private ImageCodecInfo getCodecForstring(string type)  
   {  
       var info = ImageCodecInfo.GetImageEncoders();  
      
       return (info.Select(t => new {t, enumName = type})  
                   .Where(@t1 => @t1.t.FormatDescription.Equals(@t1.enumName))  
                   .Select(@t1 => @t1.t))  
           .FirstOrDefault();  
   }

代碼說明：參數：圖片數組，保存文件的位置，保存類型

單元測試代碼實現：

01.[TestMethod]  
02.      public void Multiple_Image_Into_1Tiff_With_MultiplePages()  
03.      {  
04.          const string multipleImgPath = "C:\\Users\\Public\\Pictures\\Sample Pictures";  
05.          var files = new DirectoryInfo(multipleImgPath).GetFiles("*.jpg", SearchOption.TopDirectoryOnly);  
06.          Assert.IsTrue(files.Length > 1);  
07.          var imgs = files.Select(f => Image.FromFile(f.FullName));  
08.          SaveMultipage(imgs.ToArray(), "C:\\multiplePageTiff.tiff", "TIFF");  
09.  
10.          const string singleImgPath = @"C:\Users\{your_pc_name}\Pictures\SingleImg";  
11.          files = new DirectoryInfo(singleImgPath).GetFiles("*.jpg", SearchOption.TopDirectoryOnly);  
12.          Assert.IsTrue(files.Length == 1);  
13.  
14.          imgs = files.Select(f => Image.FromFile(f.FullName));  
15.          SaveMultipage(imgs.ToArray(), "C:\\multiplePageTiff_Single.tiff", "TIFF");  
16.      }  

代碼說明：

1.測試多個圖片的轉化

2.測試單個突破的轉化