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- add deflate compression

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Wim Pomp
2025-03-27 15:32:31 +01:00
parent 9ee8fc1029
commit 12d5d3355b
4 changed files with 161 additions and 57 deletions
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14
py/tiffwrite/__init__.py
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@@ -48,7 +48,7 @@ class IJTiffFile(rs.IJTiffFile):
pxsize: pixel size in um
deltaz: z slice interval in um
timeinterval: time between frames in seconds
compression: zstd compression level: -7 to 22.
compression: ('zstd', level) for zstd with compression level: -7 to 22, 'deflate' for deflate compresion
comment: comment to be saved in tif
extratags: other tags to be saved, example: (Tag.ascii(315, 'John Doe'), Tag.bytes(4567, [400, 500])
or (Tag.ascii(33432, 'Made by me'),).
@@ -58,14 +58,18 @@ class IJTiffFile(rs.IJTiffFile):
def __init__(self, path: str | Path, *, dtype: DTypeLike = 'uint16',
colors: Sequence[str] = None, colormap: str = None, pxsize: float = None,
deltaz: float = None, timeinterval: float = None, compression: int = None, comment: str = None,
deltaz: float = None, timeinterval: float = None,
compression: int | str | tuple[int, int] | tuple[str, int] = None, comment: str = None,
extratags: Sequence[Tag] = None) -> None:
codecs = {'z': 50000, 'd': 8, 8: 8, 50000: 50000}
self.path = Path(path)
self.dtype = np.dtype(dtype)
if compression is not None:
if isinstance(compression, Sequence):
compression = compression[-1]
self.set_compression_level(compression)
if isinstance(compression, tuple):
compression = codecs.get(compression[0], 50000), (int(compression[1]) if len(compression) == 2 else 22)
else:
compression = codecs.get(compression, 50000), 22
self.set_compression(*compression)
if colors is not None:
self.colors = np.array([get_color(color) for color in colors])
if colormap is not None: