TiffReader, convenience wrapper for libtiff
Why?
Compared to PIL and some other tiff related projects, this package is more for scientific imaging.
Features exposed from libtiff:
- responds to
- pixel bit depth
- number of channels
- compression scheme
- sequential and random access to frames in multi-frame tiff
- query length of multi-frame tiff
Open
from tiffreader import TiffReader
tif = TiffReader.open("file_path.tif")Random Access
tif.seek(10)
frame = tif.read_current() # gives a 2D numpy arrayis equivalent to
frame = tif[10]Sequential Access
example for an average image of the 10th to 20th frames:
tif.seek(10)
result = np.zeros(tif.shape, dtype=np.uint64)
for frame in zip(tif, range(10)):
result += frame
result /= 10Additionally
from tiffreader import save_tiff
array = np.array([[1, 2, 3, 4], [5, 6, 7, 8]], dtype=np.uint8)
save_tiff(array, "tif_path.tif")tif.length # length of multi-frame tiff stack
tif.shape # shape of one frame
tiffinfo("tif_path.tif", ["width", "height"]) # wraps tiffinfo to query for additional tags