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pythontiff

How to save image as binary compressed .tiff python?

Is there any library to save images in binary (1bit per pixel) .tiff compressed file? opencv and pillow cannot do that

Solution

  • In fact, I just found a way to do it with Pillow, but some tweaks are needed because of some bug.

    import numpy as np
from PIL import Image, TiffImagePlugin

filepath = '/some/file/path.tif'
# generate a 1bit image
ar = np.random.rand(50, 50) > 0.5
arr_2 = np.repeat(np.repeat(ar, 10, axis=0), 10, axis=1)

# save it t
size = mask.shape[::-1]
databytes = np.packbits(mask, axis=1)
mask = Image.frombytes(mode='1', size=size, data=databytes)
TiffImagePlugin.WRITE_LIBTIFF = True
mask.save(filepath, compression='packbits')
TiffImagePlugin.WRITE_LIBTIFF = False