In TIFF files, information about the file structure is stored in
so-called tags
. A TIFF can contain a variable number of tags.
Tiffie requires certain tags in any case in order to read in the file. Other tags are optional. This means that they may be absent, but will be evaluated if they are present.
All tags not listed will be ignored by Tiffie.
*: Is required
+: Will be evaluated
| + 0xFE: | New Subfile |
| (Start of a new image) | |
| * 0x100: | ImageWidth |
| (Number of pixels horizontal) | |
| * 0x101: | ImageLength or ImageHeight |
| (Number of pixels vertical) | |
| * 0x102: | Bits per Plane |
| (Number of possible intensities per channel) | |
| * 0x103: | Compression |
| (Compression type) | |
| * 0x106: | PhotometricInterpretation |
| (Inversion) | |
| + 0x10D: | Document Name |
| (Name of image) | |
| + 0x10F: | ScannerMake |
| (Scanner manufacturer) | |
| + 0x110: | ScannerModel |
| (Scanner type) | |
| * 0x111: | StripOffsets |
| (List of file postitions for image data) | |
| * 0x115: | Samples per Pixels |
| (Number of channels including alpha channels) | |
| * 0x116: | RowsPerStrip |
| (Lines per image portion) | |
| * 0x117: | Strip byte counts |
| (List of the packed data count of the image portion) | |
| + 0x11A: | XResolution |
| (Horizontal resolution) | |
| + 0x11B: | YResolution |
| (Vertical resolution) | |
| + 0x11C: | PlanarConfiguration |
| (Organisation type of the channels) | |
| + 0x11D: | PageName |
| (Name of page) | |
| + 0x128: | ResolutionUnit |
| (Resolution unit: dpi, dpcm...) | |
| + 0x131: | Software |
| (Image creating software) | |
| + 0x132: | DateTime |
| (Time and date of creation) | |
| + 0x13B: | Artist |
| (Copyright holder of image contents) | |
| + 0x13C: | HostComputer |
| (Computer type on which image was created) | |
| + 0x13D: | Predictor |
| (Compression predictor) | |
| + 0x14A: | SubIFDs |
| (Sub-images) | |
| + 0x140: | ColorMap |
| (Colour table) | |
| + 0x152: | ExtraSamples |
| (Type of additional channels) | |
| + 0x8649: | Photoshop image resources information |
| (Photoshop-specific information) |
