把位深度为64位的Tif文件，保存为LZW的tif文件，请问为什么会失真

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这是我的原始tif文件，我想另存为lzw的tif,下边是我的代码：
               string tmpfile=@"x:\0mgm-0011.tif";
               string imgPath=@"x:\lzw.tif";
                  using (RasterImage img = LeadtoolsSupports.Codecs.Load(tmpfile, bpp, CodecsLoadByteOrder.BgrOrGray, 1, 1))
                  {
                        if (image.BitsPerPixel == 1)
                        {
                              LeadtoolsSupports.Codecs.Save(image, imgPath, RasterImageFormat.TifLzwa, 1, 1, 1, 1, CodecsSavePageMode.Overwrite);
                        }
                        else
                        {
                           RasterCodecs codes = LeadtoolsSupports.Codecs;
                           codes.Options.Jpeg.Save.QualityFactor = 100;
                              codes.Save(image, imgPath, RasterImageFormat.TifLzw, 24, 1, 1, 1, CodecsSavePageMode.Overwrite);
                        }
                  }

keith · keith

codes.Save(image, imgPath, RasterImageFormat.TifJpeg411, 24, 1, 1, 1, CodecsSavePageMode.Overwrite);

tifjpeg411和TifxFaxG4都试过，会有问题，我用ImageMagick转成lzw的tif,就没问题。

keith · keith

如果用上面的代码，还会出现这种情况。

AvoCaDolol · AvoCaDolol

您好，您的问题已经收到，我这边再现后给您回复。

keith · keith

谢谢！

iceman · iceman

回复 1楼keith的帖子

我尝试使用您的代码创建Demo重现问题，有几个疑问和您沟通下：
1.请问您使用的是 LeadTools 的哪个版本？
2.LeadtoolsSupports 使您自己封装的类吗？
3.RasterImageFormat.TifLzwa 这个枚举我没有找到，请确认是否正确。

或者您如果能制作一个demo到论坛用于重现问题，会有助于加快问题处理进度。

keith · keith

你好，这是LeadTools的DLL版本截图：

keith · keith

2.LeadtoolsSupports 使您自己封装的类吗？
这个我没看到有做封装类。

#region Assembly Leadtools.dll, v2.0.50727
// x:\...............\lib\Leadtools.dll
#endregion

using System;

namespace Leadtools
{
public enum RasterImageFormat
{
      Unknown = 0,
      Pcx = 1,
      Gif = 2,
      Tif = 3,
      Tga = 4,
      Cmp = 5,
      Bmp = 6,
      Jpeg = 10,
      TifJpeg = 11,
      Os2 = 14,
      Wmf = 15,
      Eps = 16,
      TifLzw = 17,
      Jpeg411 = 21,
      TifJpeg411 = 22,
      Jpeg422 = 23,
      TifJpeg422 = 24,
      Ccitt = 25,
      Lead1Bit = 26,
      CcittGroup31Dim = 27,
      CcittGroup32Dim = 28,
      CcittGroup4 = 29,
      Abc = 32,
      Cals = 50,
      Mac = 51,
      Img = 52,
      Msp = 53,
      Wpg = 54,
      Ras = 55,
      Pct = 56,
      Pcd = 57,
      Fli = 61,
      EpsTiff = 63,
      EpsWmf = 64,
      FaxG31Dim = 66,
      FaxG32Dim = 67,
      FaxG4 = 68,
      WfxG31Dim = 69,
      WfxG4 = 70,
      IcaG31Dim = 71,
      IcaG32Dim = 72,
      IcaG4 = 73,
      Os22 = 74,
      Png = 75,
      Psd = 76,
      RawIcaG31Dim = 77,
      RawIcaG32Dim = 78,
      RawIcaG4 = 79,
      Fpx = 80,
      FpxSingleColor = 81,
      FpxJpeg = 82,
      FpxJpegQFactor = 83,
      BmpRle = 84,
      TifCmyk = 85,
      TifLzwCmyk = 86,
      TifPackBits = 87,
      TifPackBitsCmyk = 88,
      DicomGray = 89,
      DicomColor = 90,
      WinIco = 91,
      WinCur = 92,
      TifYcc = 93,
      TifLzwYcc = 94,
      TifPackbitsYcc = 95,
      Exif = 96,
      ExifYcc = 97,
      ExifJpeg422 = 98,
      ExifJpeg = 98,
      Awd = 99,
      ExifJpeg411 = 101,
      PbmAscii = 102,
      PbmBinary = 103,
      PgmAscii = 104,
      PgmBinary = 105,
      PpmAscii = 106,
      PpmBinary = 107,
      Cut = 108,
      Xpm = 109,
      Xbm = 110,
      IffIlbm = 111,
      IffCat = 112,
      Xwd = 113,
      Clp = 114,
      Jbig = 115,
      Emf = 116,
      IcaIbmMmr = 117,
      RawIcaIbmMmr = 118,
      Ani = 119,
      LaserData = 121,
      IntergraphRle = 122,
      DicomRleGray = 125,
      DicomRleColor = 126,
      DicomJpegGray = 127,
      DicomJpegColor = 128,
      Cals4 = 129,
      Cals2 = 130,
      Cals3 = 131,
      Xwd10 = 132,
      Xwd11 = 133,
      Flc = 134,
      Kdc = 135,
      TifCmp = 138,
      TifJbig = 139,
      TifDxf = 140,
      TifUnknown = 141,
      Sgi = 142,
      SgiRle = 143,
      RasPdf = 146,
      RasPdfG31Dim = 147,
      RasPdfG32Dim = 148,
      RasPdfG4 = 149,
      RasPdfJpeg = 150,
      RasPdfJpeg422 = 151,
      RasPdfJpeg411 = 152,
      Raw = 153,
      TifCustom = 155,
      RawRgb = 156,
      RawRle4 = 157,
      RawRle8 = 158,
      RawBitfields = 159,
      RawPackBits = 160,
      RawJpeg = 161,
      RawCcitt = 162,
      FaxG31DimNoEol = 162,
      Jp2 = 163,
      J2k = 164,
      Cmw = 165,
      TifJ2k = 166,
      TifCmw = 167,
      Mrc = 168,
      Wbmp = 170,
      JpegLab = 171,
      JpegLab411 = 172,
      JpegLab422 = 173,
      GeoTiff = 174,
      TifLead1Bit = 175,
      TifMrc = 177,
      RawLzw = 178,
      RasPdfLzw = 179,
      TifAbc = 180,
      JpegRgb = 182,
      Jbig2 = 183,
      IcaAbic = 184,
      Abic = 185,
      TifAbic = 186,
      TifJbig2 = 187,
      RasPdfJbig2 = 188,
      TifZip = 189,
      Postscript = 222,
      Ptoca = 249,
      Sct = 250,
      Afp = 252,
      IcaUncompressed = 253,
      RawIcaUncompressed = 254,
      Smp = 256,
      SmpG31Dim = 257,
      SmpG32Dim = 258,
      SmpG4 = 259,
      TgaRle = 262,
      Kdc120 = 263,
      Kdc40 = 264,
      Kdc50 = 265,
      Dcs = 266,
      Psp = 267,
      PspRle = 268,
      TifxJbig = 269,
      TifxJbigT43 = 270,
      TifxJbigT43ItuLab = 271,
      TifxJbigT43Gs = 272,
      TifxFaxG4 = 273,
      TifxFaxG31D = 274,
      TifxFaxG32D = 275,
      TifxJpeg = 276,
      Ecw = 277,
      RasRle = 288,
      ClpRle = 291,
      Dcr = 292,
      DicomJ2kGray = 293,
      DicomJ2kColor = 294,
      Fit = 295,
      Crw = 296,
      Cin = 298,
      EpsPostscript = 300,
      IntergraphCcittG4 = 301,
      Sff = 302,
      IffIlbmUncompressed = 303,
      IffCatUncompressed = 304,
      RtfRaster = 305,
      Sid = 306,
      Wmz = 307,
      Djvu = 308,
      AfpIcaG31Dim = 309,
      AfpIcaG32Dim = 310,
      AfpIcaG4 = 311,
      AfpIcaUncompressed = 312,
      AfpIcaIbmMmr = 313,
      LeadMrc = 314,
      TifLeadMrc = 315,
      Txt = 316,
      PdfLeadMrc = 317,
      Hdp = 318,
      HdpGray = 319,
      HdpCmyk = 320,
      PngIco = 321,
      Xps = 322,
      Jpx = 323,
      XpsJpeg = 324,
      XpsJpeg422 = 325,
      XpsJpeg411 = 326,
      Mng = 327,
      MngGray = 329,
      MngJng = 330,
      MngJng411 = 331,
      MngJng422 = 332,
      RasPdfCmyk = 333,
      RasPdfLzwCmyk = 334,
}
}

frank.zhang · frank.zhang

感谢你的问题反馈，
您的问题我们在验证后，给您回复。

iceman · iceman

回复 8楼keith的帖子

LeadtoolsSupports 当前最新版本V19已经没有这个接口了，我使用 V19 通过以下代码测试：

using (RasterImage image = codecs.Load(tmpfile, cinfo.BitsPerPixel, CodecsLoadByteOrder.BgrOrGray, 1, 1))
{
if (image.BitsPerPixel == 1)
{
codecs.Save(image, imgPath, RasterImageFormat.TifLzw, 1, 1, 1, 1, CodecsSavePageMode.Overwrite);
}
else
{
codecs.Options.Jpeg.Save.QualityFactor = 100;
codecs.Save(image, imgPath, RasterImageFormat.TifLzw, 24, 1, 1, 1, CodecsSavePageMode.Overwrite);
}
}

复制代码

并没有出现失真现象，为了更快速的解决您的问题，能否发一个重现问题demo到论坛，我们之间发送给厂商调试。

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[已处理] 把位深度为64位的Tif文件，保存为LZW的tif文件，请问为什么会失真

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