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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | .. py:module:: PIL.TiffTags
.. py:currentmodule:: PIL.TiffTags
:py:mod:`TiffTags` Module
=========================
The :py:mod:`TiffTags` module exposes many of the standard TIFF
metadata tag numbers, names, and type information.
.. method:: lookup(tag)
:param tag: Integer tag number
:returns: Taginfo namedtuple, From the ``TAGS_V2`` info if possible,
otherwise just populating the value and name from ``TAGS``.
If the tag is not recognized, "unknown" is returned for the name
.. versionadded:: 3.1.0
.. class:: TagInfo
.. method:: __init__(self, value=None, name="unknown", type=None, length=0, enum=None)
:param value: Integer Tag Number
:param name: Tag Name
:param type: Integer type from :py:attr:`PIL.TiffTags.TYPES`
:param length: Array length: 0 == variable, 1 == single value, n = fixed
:param enum: Dict of name:integer value options for an enumeration
.. method:: cvt_enum(self, value)
:param value: The enumerated value name
:returns: The integer corresponding to the name.
.. versionadded:: 3.0.0
.. py:attribute:: PIL.TiffTags.TAGS_V2
The ``TAGS_V2`` dictionary maps 16-bit integer tag numbers to
:py:class:`PIL.TagTypes.TagInfo` tuples for metadata fields defined in the TIFF
spec.
.. versionadded:: 3.0.0
.. py:attribute:: PIL.TiffTags.TAGS
The ``TAGS`` dictionary maps 16-bit integer TIFF tag number to
descriptive string names. For instance:
>>> from PIL.TiffTags import TAGS
>>> TAGS[0x010e]
'ImageDescription'
This dictionary contains a superset of the tags in TAGS_V2, common
EXIF tags, and other well known metadata tags.
.. py:attribute:: PIL.TiffTags.TYPES
The ``TYPES`` dictionary maps the TIFF type short integer to a
human readable type name.
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