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Fix Pillow 12.0.0 compatibility for uint16 multi-channel images #11149

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Fix Pillow 12.0.0 compatibility for uint16 multi-channel images #11149

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f369a06
Fix MSLR-WEB dataset download URLs
0AnshuAditya0 Nov 16, 2025
21062d6
Fix Pillow 12.0.0 compatibility for uint16 multi-channel images.
0AnshuAditya0 Nov 20, 2025
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15 changes: 9 additions & 6 deletions tensorflow_datasets/core/utils/image_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -171,10 +171,9 @@ def _postprocess_convert_rgb(img: PilImage) -> PilImage:
def create_thumbnail(
ex: np.ndarray, *, use_colormap: bool, default_dimensions: bool = True
) -> PilImage:
"""Creates the image from the np.array input."""
PIL_Image = lazy_imports_lib.lazy_imports.PIL_Image # pylint: disable=invalid-name
PIL_Image = lazy_imports_lib.lazy_imports.PIL_Image

if use_colormap: # Apply the colormap first as it modify the shape/dtype
if use_colormap:
ex = apply_colormap(ex)

_, _, c = ex.shape
Expand All @@ -183,12 +182,16 @@ def create_thumbnail(
ex = ex.squeeze(axis=-1)
mode = 'L'
elif ex.dtype == np.uint16:
mode = 'I;16'
postprocess = _postprocess_convert_rgb
if c in (3, 4):
ex = (ex / 257).astype(np.uint8)
mode = None
else:
mode = 'I;16'
postprocess = _postprocess_convert_rgb
else:
mode = None
img = PIL_Image.fromarray(ex, mode=mode)
img = postprocess(img)
if default_dimensions:
img.thumbnail((THUMBNAIL_SIZE, THUMBNAIL_SIZE)) # Resize the image in-place
img.thumbnail((THUMBNAIL_SIZE, THUMBNAIL_SIZE))
return img
4 changes: 2 additions & 2 deletions tensorflow_datasets/ranking/mslr_web/mslr_web.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,8 +61,8 @@
"""

_URLS = {
"10k": "https://api.onedrive.com/v1.0/shares/s!AtsMfWUz5l8nbOIoJ6Ks0bEMp78/root/content",
"30k": "https://api.onedrive.com/v1.0/shares/s!AtsMfWUz5l8nbXGPBlwD1rnFdBY/root/content",
"10k": "https://1drv.ms/u/s!AtsMfWUz5l8nbOIoJ6Ks0bEMp78",
"30k": "https://1drv.ms/u/s!AtsMfWUz5l8nbXGPBlwD1rnFdBY",
}

_FEATURE_NAMES = {
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