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+# ImageSharp TIFF codec
+
+## References
+- TIFF
+  - [TIFF 6.0 Specification](http://partners.adobe.com/public/developer/en/tiff/TIFF6.pdf),(http://www.npes.org/pdf/TIFF-v6.pdf)
+  - [TIFF Supplement 1](http://partners.adobe.com/public/developer/en/tiff/TIFFPM6.pdf)
+  - [TIFF Supplement 2](http://partners.adobe.com/public/developer/en/tiff/TIFFphotoshop.pdf)
+  - [TIFF Supplement 3](http://chriscox.org/TIFFTN3d1.pdf)
+  - [TIFF-F/FX Extension (RFC2301)](http://www.ietf.org/rfc/rfc2301.txt)
+  - [TIFF/EP Extension (Wikipedia)](https://en.wikipedia.org/wiki/TIFF/EP)
+  - [Adobe TIFF Pages](http://partners.adobe.com/public/developer/tiff/index.html)
+  - [Unofficial TIFF FAQ](http://www.awaresystems.be/imaging/tiff/faq.html)
+
+- DNG
+  - [Adobe DNG Pages](https://helpx.adobe.com/photoshop/digital-negative.html)
+
+- Metadata (EXIF)
+  - [EXIF 2.3 Specification](http://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf)
+
+- Metadata (XMP)
+  - [Adobe XMP Pages](http://www.adobe.com/products/xmp.html)
+  - [Adobe XMP Developer Centre](http://www.adobe.com/devnet/xmp.html)
+
+## Implementation Status
+
+### Baseline TIFF Tags
+
+|                           |Encoder|Decoder|Comments                  |
+|---------------------------|:-----:|:-----:|--------------------------|
+|NewSubfileType             |  [ ]  |  [ ]  |                          |
+|SubfileType                |  [ ]  |  [ ]  |                          |
+|ImageWidth                 |  [ ]  |  [ ]  |                          |
+|ImageLength                |  [ ]  |  [ ]  |                          |
+|BitsPerSample              |  [ ]  |  [ ]  |                          |
+|Compression                |  [ ]  |  [ ]  |                          |
+|PhotometricInterpretation  |  [ ]  |  [ ]  |                          |
+|Threshholding              |  [ ]  |  [ ]  |                          |
+|CellWidth                  |  [ ]  |  [ ]  |                          |
+|CellLength                 |  [ ]  |  [ ]  |                          |
+|FillOrder                  |  [ ]  |  [ ]  |                          |
+|ImageDescription           |  [ ]  |  [ ]  |                          |
+|Make                       |  [ ]  |  [ ]  |                          |
+|Model                      |  [ ]  |  [ ]  |                          |
+|StripOffsets               |  [ ]  |  [ ]  |                          |
+|Orientation                |  [ ]  |  [ ]  |                          |
+|SamplesPerPixel            |  [ ]  |  [ ]  |                          |
+|RowsPerStrip               |  [ ]  |  [ ]  |                          |
+|StripByteCounts            |  [ ]  |  [ ]  |                          |
+|MinSampleValue             |  [ ]  |  [ ]  |                          |
+|MaxSampleValue             |  [ ]  |  [ ]  |                          |
+|XResolution                |  [ ]  |  [ ]  |                          |
+|YResolution                |  [ ]  |  [ ]  |                          |
+|PlanarConfiguration        |  [ ]  |  [ ]  |                          |
+|FreeOffsets                |  [ ]  |  [ ]  |                          |
+|FreeByteCounts             |  [ ]  |  [ ]  |                          |
+|GrayResponseUnit           |  [ ]  |  [ ]  |                          |
+|GrayResponseCurve          |  [ ]  |  [ ]  |                          |
+|ResolutionUnit             |  [ ]  |  [ ]  |                          |
+|Software                   |  [ ]  |  [ ]  |                          |
+|DateTime                   |  [ ]  |  [ ]  |                          |
+|Artist                     |  [ ]  |  [ ]  |                          |
+|HostComputer               |  [ ]  |  [ ]  |                          |
+|ColorMap                   |  [ ]  |  [ ]  |                          |
+|ExtraSamples               |  [ ]  |  [ ]  |                          |
+|Copyright                  |  [ ]  |  [ ]  |                          |
+
+### Extension TIFF Tags
+
+|                           |Encoder|Decoder|Comments                  |
+|---------------------------|:-----:|:-----:|--------------------------|
+|NewSubfileType             |  [ ]  |  [ ]  |                          |
+|DocumentName               |  [ ]  |  [ ]  |                          |
+|PageName                   |  [ ]  |  [ ]  |                          |
+|XPosition                  |  [ ]  |  [ ]  |                          |
+|YPosition                  |  [ ]  |  [ ]  |                          |
+|T4Options                  |  [ ]  |  [ ]  |                          |
+|T6Options                  |  [ ]  |  [ ]  |                          |
+|PageNumber                 |  [ ]  |  [ ]  |                          |
+|TransferFunction           |  [ ]  |  [ ]  |                          |
+|Predictor                  |  [ ]  |  [ ]  |                          |
+|WhitePoint                 |  [ ]  |  [ ]  |                          |
+|PrimaryChromaticities      |  [ ]  |  [ ]  |                          |
+|HalftoneHints              |  [ ]  |  [ ]  |                          |
+|TileWidth                  |  [ ]  |  [ ]  |                          |
+|TileLength                 |  [ ]  |  [ ]  |                          |
+|TileOffsets                |  [ ]  |  [ ]  |                          |
+|TileByteCounts             |  [ ]  |  [ ]  |                          |
+|BadFaxLines                |  [ ]  |  [ ]  |                          |
+|CleanFaxData               |  [ ]  |  [ ]  |                          |
+|ConsecutiveBadFaxLines     |  [ ]  |  [ ]  |                          |
+|SubIFDs                    |  [ ]  |  [ ]  |                          |
+|InkSet                     |  [ ]  |  [ ]  |                          |
+|InkNames                   |  [ ]  |  [ ]  |                          |
+|NumberOfInks               |  [ ]  |  [ ]  |                          |
+|DotRange                   |  [ ]  |  [ ]  |                          |
+|TargetPrinter              |  [ ]  |  [ ]  |                          |
+|SampleFormat               |  [ ]  |  [ ]  |                          |
+|SMinSampleValue            |  [ ]  |  [ ]  |                          |
+|SMaxSampleValue            |  [ ]  |  [ ]  |                          |
+|TransferRange              |  [ ]  |  [ ]  |                          |
+|ClipPath                   |  [ ]  |  [ ]  |                          |
+|XClipPathUnits             |  [ ]  |  [ ]  |                          |
+|YClipPathUnits             |  [ ]  |  [ ]  |                          |
+|Indexed                    |  [ ]  |  [ ]  |                          |
+|JPEGTables                 |  [ ]  |  [ ]  |                          |
+|OPIProxy                   |  [ ]  |  [ ]  |                          |
+|GlobalParametersIFD        |  [ ]  |  [ ]  |                          |
+|ProfileType                |  [ ]  |  [ ]  |                          |
+|FaxProfile                 |  [ ]  |  [ ]  |                          |
+|CodingMethods              |  [ ]  |  [ ]  |                          |
+|VersionYear                |  [ ]  |  [ ]  |                          |
+|ModeNumber                 |  [ ]  |  [ ]  |                          |
+|Decode                     |  [ ]  |  [ ]  |                          |
+|DefaultImageColor          |  [ ]  |  [ ]  |                          |
+|JPEGProc                   |  [ ]  |  [ ]  |                          |
+|JPEGInterchangeFormat      |  [ ]  |  [ ]  |                          |
+|JPEGInterchangeFormatLength|  [ ]  |  [ ]  |                          |
+|JPEGRestartInterval        |  [ ]  |  [ ]  |                          |
+|JPEGLosslessPredictors     |  [ ]  |  [ ]  |                          |
+|JPEGPointTransforms        |  [ ]  |  [ ]  |                          |
+|JPEGQTables                |  [ ]  |  [ ]  |                          |
+|JPEGDCTables               |  [ ]  |  [ ]  |                          |
+|JPEGACTables               |  [ ]  |  [ ]  |                          |
+|YCbCrCoefficients          |  [ ]  |  [ ]  |                          |
+|YCbCrSubSampling           |  [ ]  |  [ ]  |                          |
+|YCbCrPositioning           |  [ ]  |  [ ]  |                          |
+|ReferenceBlackWhite        |  [ ]  |  [ ]  |                          |
+|StripRowCounts             |  [ ]  |  [ ]  |                          |
+|XMP                        |  [ ]  |  [ ]  |                          |
+|ImageID                    |  [ ]  |  [ ]  |                          |
+|ImageLayer                 |  [ ]  |  [ ]  |                          |
+
+### Private TIFF Tags
+
+|                           |Encoder|Decoder|Comments                  |
+|---------------------------|:-----:|:-----:|--------------------------|
+|Wang Annotation            |  [ ]  |  [ ]  |                          |
+|MD FileTag                 |  [ ]  |  [ ]  |                          |
+|MD ScalePixel              |  [ ]  |  [ ]  |                          |
+|MD ColorTable              |  [ ]  |  [ ]  |                          |
+|MD LabName                 |  [ ]  |  [ ]  |                          |
+|MD SampleInfo              |  [ ]  |  [ ]  |                          |
+|MD PrepDate                |  [ ]  |  [ ]  |                          |
+|MD PrepTime                |  [ ]  |  [ ]  |                          |
+|MD FileUnits               |  [ ]  |  [ ]  |                          |
+|ModelPixelScaleTag         |  [ ]  |  [ ]  |                          |
+|IPTC                       |  [ ]  |  [ ]  |                          |
+|INGR Packet Data Tag       |  [ ]  |  [ ]  |                          |
+|INGR Flag Registers        |  [ ]  |  [ ]  |                          |
+|IrasB Transformation Matrix|  [ ]  |  [ ]  |                          |
+|ModelTiepointTag           |  [ ]  |  [ ]  |                          |
+|ModelTransformationTag     |  [ ]  |  [ ]  |                          |
+|Photoshop                  |  [ ]  |  [ ]  |                          |
+|Exif IFD                   |  [ ]  |  [ ]  |                          |
+|ICC Profile                |  [ ]  |  [ ]  |                          |
+|GeoKeyDirectoryTag         |  [ ]  |  [ ]  |                          |
+|GeoDoubleParamsTag         |  [ ]  |  [ ]  |                          |
+|GeoAsciiParamsTag          |  [ ]  |  [ ]  |                          |
+|GPS IFD                    |  [ ]  |  [ ]  |                          |
+|HylaFAX FaxRecvParams      |  [ ]  |  [ ]  |                          |
+|HylaFAX FaxSubAddress      |  [ ]  |  [ ]  |                          |
+|HylaFAX FaxRecvTime        |  [ ]  |  [ ]  |                          |
+|ImageSourceData            |  [ ]  |  [ ]  |                          |
+|Interoperability IFD       |  [ ]  |  [ ]  |                          |
+|GDAL_METADATA              |  [ ]  |  [ ]  |                          |
+|GDAL_NODATA                |  [ ]  |  [ ]  |                          |
+|Oce Scanjob Description    |  [ ]  |  [ ]  |                          |
+|Oce Application Selector   |  [ ]  |  [ ]  |                          |
+|Oce Identification Number  |  [ ]  |  [ ]  |                          |
+|Oce ImageLogic Characteristics|  [ ]  |  [ ]  |                          |
+|DNGVersion                 |  [ ]  |  [ ]  |                          |
+|DNGBackwardVersion         |  [ ]  |  [ ]  |                          |
+|UniqueCameraModel          |  [ ]  |  [ ]  |                          |
+|LocalizedCameraModel       |  [ ]  |  [ ]  |                          |
+|CFAPlaneColor              |  [ ]  |  [ ]  |                          |
+|CFALayout                  |  [ ]  |  [ ]  |                          |
+|LinearizationTable         |  [ ]  |  [ ]  |                          |
+|BlackLevelRepeatDim        |  [ ]  |  [ ]  |                          |
+|BlackLevel                 |  [ ]  |  [ ]  |                          |
+|BlackLevelDeltaH           |  [ ]  |  [ ]  |                          |
+|BlackLevelDeltaV           |  [ ]  |  [ ]  |                          |
+|WhiteLevel                 |  [ ]  |  [ ]  |                          |
+|DefaultScale               |  [ ]  |  [ ]  |                          |
+|DefaultCropOrigin          |  [ ]  |  [ ]  |                          |
+|DefaultCropSize            |  [ ]  |  [ ]  |                          |
+|ColorMatrix1               |  [ ]  |  [ ]  |                          |
+|ColorMatrix2               |  [ ]  |  [ ]  |                          |
+|CameraCalibration1         |  [ ]  |  [ ]  |                          |
+|CameraCalibration2         |  [ ]  |  [ ]  |                          |
+|ReductionMatrix1           |  [ ]  |  [ ]  |                          |
+|ReductionMatrix2           |  [ ]  |  [ ]  |                          |
+|AnalogBalance              |  [ ]  |  [ ]  |                          |
+|AsShotNeutral              |  [ ]  |  [ ]  |                          |
+|AsShotWhiteXY              |  [ ]  |  [ ]  |                          |
+|BaselineExposure           |  [ ]  |  [ ]  |                          |
+|BaselineNoise              |  [ ]  |  [ ]  |                          |
+|BaselineSharpness          |  [ ]  |  [ ]  |                          |
+|BayerGreenSplit            |  [ ]  |  [ ]  |                          |
+|LinearResponseLimit        |  [ ]  |  [ ]  |                          |
+|CameraSerialNumber         |  [ ]  |  [ ]  |                          |
+|LensInfo                   |  [ ]  |  [ ]  |                          |
+|ChromaBlurRadius           |  [ ]  |  [ ]  |                          |
+|AntiAliasStrength          |  [ ]  |  [ ]  |                          |
+|DNGPrivateData             |  [ ]  |  [ ]  |                          |
+|MakerNoteSafety            |  [ ]  |  [ ]  |                          |
+|CalibrationIlluminant1     |  [ ]  |  [ ]  |                          |
+|CalibrationIlluminant2     |  [ ]  |  [ ]  |                          |
+|BestQualityScale           |  [ ]  |  [ ]  |                          |
+|Alias Layer Metadata       |  [ ]  |  [ ]  |                          |