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Ensure TIFF has transposed on load before checking orientation

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This commit is contained in:
Andrew Murray 2023-09-08 08:23:35 +10:00
parent ea953c0514
commit e195e60ce2
2 changed files with 10 additions and 1 deletions
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10
Tests/test_file_libtiff.py
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@ -8,7 +8,7 @@ from collections import namedtuple
import pytest
from PIL import Image, ImageFilter, TiffImagePlugin, TiffTags, features
from PIL import Image, ImageFilter, ImageOps, TiffImagePlugin, TiffTags, features
from PIL.TiffImagePlugin import SAMPLEFORMAT, STRIPOFFSETS, SUBIFD
from .helper import (
@ -1039,6 +1039,14 @@ class TestFileLibTiff(LibTiffTestCase):
assert_image_similar(base_im, im, 0.7)
def test_exif_transpose(self):
with Image.open("Tests/images/g4_orientation_1.tif") as base_im:
for i in range(2, 9):
with Image.open("Tests/images/g4_orientation_" + str(i) + ".tif") as im:
im = ImageOps.exif_transpose(im)
assert_image_similar(base_im, im, 0.7)
@pytest.mark.valgrind_known_error(reason="Backtrace in Python Core")
def test_sampleformat_not_corrupted(self):
# Assert that a TIFF image with SampleFormat=UINT tag is not corrupted

1
src/PIL/ImageOps.py
View File

@ -588,6 +588,7 @@ def exif_transpose(image, *, in_place=False):
with the transposition applied. If there is no transposition, a copy of the
image will be returned.
"""
image.load()
image_exif = image.getexif()
orientation = image_exif.get(ExifTags.Base.Orientation)
method = {