Allow saving as BigTIFF #8642
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Allow saving as BigTIFF #8642
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radarhere
commented
Dec 30, 2024
| @@ -582,7 +582,7 @@ class ImageFileDirectory_v2(_IFDv2Base): | |||
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| def __init__( | |||
| self, | |||
| ifh: bytes = b"II\052\0\0\0\0\0", | |||
| ifh: bytes = b"II\x2A\x00\x00\x00\x00\x00", | |||
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This is the same, I'm just changing it to the form seen elsewhere in this file.
radarhere
commented
Dec 30, 2024
| ifh = self._prefix + self._pack("H", 43 if self._bigtiff else 42) | ||
| if self._bigtiff: | ||
| ifh += self._pack("HH", 8, 0) | ||
| ifh += self._pack("Q", 16) if self._bigtiff else self._pack("L", 8) |
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See https://web.archive.org/web/20240706160214/https://www.awaresystems.be/imaging/tiff/bigtiff.html for a description of the header values.
hugovk
reviewed
Dec 30, 2024
docs/handbook/image-file-formats.rst
Outdated
| @@ -1208,6 +1208,9 @@ The :py:meth:`~PIL.Image.Image.save` method can take the following keyword argum | |||
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| .. versionadded:: 8.4.0 | |||
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| **bigtiff** | |||
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I suggest adding an underscore to the public API for readability (and in the code):
Suggested change
| **bigtiff** | |
| **big_tiff** |
This was referenced Dec 31, 2024
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Resolves #4669
Adds a keyword argument to allow TIFF images to be saved as BigTIFF -
im.save("out.tiff", big_tiff=True)