C# 压缩多帧Tiff

我目前正在生成多个图像并将其保存到多帧tiff

我正在使用此代码保存tiff

System.Drawing.Imaging.Encoder encoder = System.Drawing.Imaging.Encoder.SaveFlag;
ImageCodecInfo encoderInfo = ImageCodecInfo.GetImageEncoders().First(i => i.MimeType == "image/tiff");
EncoderParameters encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(encoder, (long)EncoderValue.MultiFrame);

// Save the first frame of the multi page tiff
Bitmap firstImage = (Bitmap)_imageList[0];
firstImage.Save(System.IO.Directory.GetCurrentDirectory() + @"\ChargeInvoice Images\" + OrderNumber + "_Invoice.tiff", encoderInfo, encoderParameters);

encoderParameters.Param[0] = new EncoderParameter(encoder, (long)EncoderValue.FrameDimensionPage);

// Add the remining images to the tiff
for (int i = 1; i < _imageList.Count; i++)
{
 Bitmap img = (Bitmap)_imageList[i];
 firstImage.SaveAdd(img, encoderParameters);
}

// Close out the file
encoderParameters.Param[0] = new EncoderParameter(encoder, (long)EncoderValue.Flush);
firstImage.SaveAdd(encoderParameters);

System.Drawing.Imaging.Encoder编码器=System.Drawing.Imaging.Encoder.SaveFlag；
ImageCodecInfo encoderInfo=ImageCodecInfo.GetImageEncoders（）.First（i=>i.MimeType==“image/tiff”）；
EncoderParameters EncoderParameters=新的EncoderParameters（1）；
encoderParameters.Param[0]=新的EncoderParameter（编码器，（长）EncoderValue.MultiFrame）；
//保存多页tiff的第一帧
位图firstImage=（位图）u imageList[0]；
firstImage.Save（System.IO.Directory.GetCurrentDirectory（）++“\ChargeInvoice Images\”+OrderNumber+“\u Invoice.tiff”、encoderInfo、encoderParameters）；
encoderParameters.Param[0]=新的EncoderParameter（编码器，（长）EncoderValue.FrameDimensionPage）；
//将重新录制的图像添加到tiff
对于（int i=1；i<\u imageList.Count；i++）
{
位图img=（位图）u图像列表[i]；
SaveAdd（img、encoderParameters）；
}
//结案
encoderParameters.Param[0]=新的EncoderParameter（encoder，（long）EncoderValue.Flush）；
SaveAdd（编码器参数）；

一些TIFF的页面超过18页，文件大小为11MB+

有没有一种方法可以压缩TIFF以节省或缩小尺寸

---

如果我失去了一些图像质量也没关系

添加一个编码器参数进行压缩：

System.Drawing.Imaging.Encoder encoder = System.Drawing.Imaging.Encoder.SaveFlag;
System.Drawing.Imaging.Encoder compressionEncoder = System.Drawing.Imaging.Encoder.Compression;

EncoderParameters encoderParameters = new EncoderParameters(2);
encoderParameters.Param[0] = new EncoderParameter(encoder, (long)EncoderValue.MultiFrame);
encoderParameters.Param[1] =  new EncoderParameter(compressionEncoder, (long)EncoderValue.CompressionLZW);