pyexttiff
— Classes to read Tiff¶
This module aims at reading tiff with private IFDs. It uses PIL for image reading.
This module uses code from pylibtiff (https://pypi.python.org/pypi/libtiff, https://code.google.com/p/pylibtiff or https://github.com/hmeine/pylibtiff)
Classes¶
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class
pyexttiff.
TiffFile
(filename, subIFDpaths=[], method=1)[source]¶ Bases:
object
This class allows the access to the entire tiff file (tags and images).
Opens a tiff file, reads header and IFDs. filename is the filename containing the tiff subIFDpaths is the list of tag path whose values are offset to private IFDs
a tag path is a tuple representing the path to a given tag which must represent an IFD (34665) means that tag 34665 of any given public IFD is an offset to a private IFD (32001, 521) means that tag 32001 of any given public IFD is an offset to a private IFD
and that tag 521 of any private tag referenced by a 32001 public tag is also an offset to a private IFD- method is the method used to read data:
- 1: f=open(..., ‘rb’) ; numpy.frombuffer(f.read(), dtype=numpy.ubyte) 2: f=open(..., ‘rb’) ; numpy.ndarray(buffer=mmap(f), dtype=numpy.ubyte) 3: same as 2 but with modifications allowed - DANGEROUS
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class
pyexttiff.
IFD
[source]¶ Bases:
list
This class represent an IFD.
Initialisation method of IFD class.
Returns the list of the tags
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class
pyexttiff.
IFDEntry
(tag, entrytype, value=None)[source]¶ Bases:
object
This class represent an IFD entry
tag is the tag number of the entry entrytype is the type of the entry value is the value associated to the tag