mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-11-10 19:56:47 +03:00
831 lines
27 KiB
Python
831 lines
27 KiB
Python
import os
|
|
import warnings
|
|
from io import BytesIO
|
|
|
|
import pytest
|
|
|
|
from PIL import Image, ImageFile, TiffImagePlugin
|
|
from PIL.TiffImagePlugin import RESOLUTION_UNIT, X_RESOLUTION, Y_RESOLUTION
|
|
|
|
from .helper import (
|
|
assert_image_equal,
|
|
assert_image_equal_tofile,
|
|
assert_image_similar,
|
|
assert_image_similar_tofile,
|
|
hopper,
|
|
is_pypy,
|
|
is_win32,
|
|
)
|
|
|
|
try:
|
|
import defusedxml.ElementTree as ElementTree
|
|
except ImportError:
|
|
ElementTree = None
|
|
|
|
|
|
class TestFileTiff:
|
|
def test_sanity(self, tmp_path):
|
|
|
|
filename = str(tmp_path / "temp.tif")
|
|
|
|
hopper("RGB").save(filename)
|
|
|
|
with Image.open(filename) as im:
|
|
im.load()
|
|
assert im.mode == "RGB"
|
|
assert im.size == (128, 128)
|
|
assert im.format == "TIFF"
|
|
|
|
hopper("1").save(filename)
|
|
with Image.open(filename):
|
|
pass
|
|
|
|
hopper("L").save(filename)
|
|
with Image.open(filename):
|
|
pass
|
|
|
|
hopper("P").save(filename)
|
|
with Image.open(filename):
|
|
pass
|
|
|
|
hopper("RGB").save(filename)
|
|
with Image.open(filename):
|
|
pass
|
|
|
|
hopper("I").save(filename)
|
|
with Image.open(filename):
|
|
pass
|
|
|
|
@pytest.mark.skipif(is_pypy(), reason="Requires CPython")
|
|
def test_unclosed_file(self):
|
|
def open():
|
|
im = Image.open("Tests/images/multipage.tiff")
|
|
im.load()
|
|
|
|
pytest.warns(ResourceWarning, open)
|
|
|
|
def test_closed_file(self):
|
|
with warnings.catch_warnings():
|
|
im = Image.open("Tests/images/multipage.tiff")
|
|
im.load()
|
|
im.close()
|
|
|
|
def test_context_manager(self):
|
|
with warnings.catch_warnings():
|
|
with Image.open("Tests/images/multipage.tiff") as im:
|
|
im.load()
|
|
|
|
def test_mac_tiff(self):
|
|
# Read RGBa images from macOS [@PIL136]
|
|
|
|
filename = "Tests/images/pil136.tiff"
|
|
with Image.open(filename) as im:
|
|
assert im.mode == "RGBA"
|
|
assert im.size == (55, 43)
|
|
assert im.tile == [("raw", (0, 0, 55, 43), 8, ("RGBa", 0, 1))]
|
|
im.load()
|
|
|
|
assert_image_similar_tofile(im, "Tests/images/pil136.png", 1)
|
|
|
|
def test_bigtiff(self):
|
|
with Image.open("Tests/images/hopper_bigtiff.tif") as im:
|
|
assert_image_equal_tofile(im, "Tests/images/hopper.tif")
|
|
|
|
@pytest.mark.parametrize(
|
|
"file_name,mode,size,tile",
|
|
[
|
|
(
|
|
"tiff_wrong_bits_per_sample.tiff",
|
|
"RGBA",
|
|
(52, 53),
|
|
[("raw", (0, 0, 52, 53), 160, ("RGBA", 0, 1))],
|
|
),
|
|
(
|
|
"tiff_wrong_bits_per_sample_2.tiff",
|
|
"RGB",
|
|
(16, 16),
|
|
[("raw", (0, 0, 16, 16), 8, ("RGB", 0, 1))],
|
|
),
|
|
(
|
|
"tiff_wrong_bits_per_sample_3.tiff",
|
|
"RGBA",
|
|
(512, 256),
|
|
[("libtiff", (0, 0, 512, 256), 0, ("RGBA", "tiff_lzw", False, 48782))],
|
|
),
|
|
],
|
|
)
|
|
def test_wrong_bits_per_sample(self, file_name, mode, size, tile):
|
|
with Image.open("Tests/images/" + file_name) as im:
|
|
assert im.mode == mode
|
|
assert im.size == size
|
|
assert im.tile == tile
|
|
im.load()
|
|
|
|
def test_set_legacy_api(self):
|
|
ifd = TiffImagePlugin.ImageFileDirectory_v2()
|
|
with pytest.raises(Exception) as e:
|
|
ifd.legacy_api = None
|
|
assert str(e.value) == "Not allowing setting of legacy api"
|
|
|
|
def test_xyres_tiff(self):
|
|
filename = "Tests/images/pil168.tif"
|
|
with Image.open(filename) as im:
|
|
|
|
# legacy api
|
|
assert isinstance(im.tag[X_RESOLUTION][0], tuple)
|
|
assert isinstance(im.tag[Y_RESOLUTION][0], tuple)
|
|
|
|
# v2 api
|
|
assert isinstance(im.tag_v2[X_RESOLUTION], TiffImagePlugin.IFDRational)
|
|
assert isinstance(im.tag_v2[Y_RESOLUTION], TiffImagePlugin.IFDRational)
|
|
|
|
assert im.info["dpi"] == (72.0, 72.0)
|
|
|
|
def test_xyres_fallback_tiff(self):
|
|
filename = "Tests/images/compression.tif"
|
|
with Image.open(filename) as im:
|
|
|
|
# v2 api
|
|
assert isinstance(im.tag_v2[X_RESOLUTION], TiffImagePlugin.IFDRational)
|
|
assert isinstance(im.tag_v2[Y_RESOLUTION], TiffImagePlugin.IFDRational)
|
|
with pytest.raises(KeyError):
|
|
im.tag_v2[RESOLUTION_UNIT]
|
|
|
|
# Legacy.
|
|
assert im.info["resolution"] == (100.0, 100.0)
|
|
# Fallback "inch".
|
|
assert im.info["dpi"] == (100.0, 100.0)
|
|
|
|
def test_int_resolution(self):
|
|
filename = "Tests/images/pil168.tif"
|
|
with Image.open(filename) as im:
|
|
|
|
# Try to read a file where X,Y_RESOLUTION are ints
|
|
im.tag_v2[X_RESOLUTION] = 71
|
|
im.tag_v2[Y_RESOLUTION] = 71
|
|
im._setup()
|
|
assert im.info["dpi"] == (71.0, 71.0)
|
|
|
|
@pytest.mark.parametrize(
|
|
"resolution_unit, dpi",
|
|
[(None, 72.8), (2, 72.8), (3, 184.912)],
|
|
)
|
|
def test_load_float_dpi(self, resolution_unit, dpi):
|
|
with Image.open(
|
|
"Tests/images/hopper_float_dpi_" + str(resolution_unit) + ".tif"
|
|
) as im:
|
|
assert im.tag_v2.get(RESOLUTION_UNIT) == resolution_unit
|
|
assert im.info["dpi"] == (dpi, dpi)
|
|
|
|
def test_save_float_dpi(self, tmp_path):
|
|
outfile = str(tmp_path / "temp.tif")
|
|
with Image.open("Tests/images/hopper.tif") as im:
|
|
dpi = (72.2, 72.2)
|
|
im.save(outfile, dpi=dpi)
|
|
|
|
with Image.open(outfile) as reloaded:
|
|
assert reloaded.info["dpi"] == dpi
|
|
|
|
def test_save_setting_missing_resolution(self):
|
|
b = BytesIO()
|
|
with Image.open("Tests/images/10ct_32bit_128.tiff") as im:
|
|
im.save(b, format="tiff", resolution=123.45)
|
|
with Image.open(b) as im:
|
|
assert im.tag_v2[X_RESOLUTION] == 123.45
|
|
assert im.tag_v2[Y_RESOLUTION] == 123.45
|
|
|
|
def test_invalid_file(self):
|
|
invalid_file = "Tests/images/flower.jpg"
|
|
|
|
with pytest.raises(SyntaxError):
|
|
TiffImagePlugin.TiffImageFile(invalid_file)
|
|
|
|
TiffImagePlugin.PREFIXES.append(b"\xff\xd8\xff\xe0")
|
|
with pytest.raises(SyntaxError):
|
|
TiffImagePlugin.TiffImageFile(invalid_file)
|
|
TiffImagePlugin.PREFIXES.pop()
|
|
|
|
def test_bad_exif(self):
|
|
with Image.open("Tests/images/hopper_bad_exif.jpg") as i:
|
|
# Should not raise struct.error.
|
|
pytest.warns(UserWarning, i._getexif)
|
|
|
|
def test_save_rgba(self, tmp_path):
|
|
im = hopper("RGBA")
|
|
outfile = str(tmp_path / "temp.tif")
|
|
im.save(outfile)
|
|
|
|
def test_save_unsupported_mode(self, tmp_path):
|
|
im = hopper("HSV")
|
|
outfile = str(tmp_path / "temp.tif")
|
|
with pytest.raises(OSError):
|
|
im.save(outfile)
|
|
|
|
def test_little_endian(self):
|
|
with Image.open("Tests/images/16bit.cropped.tif") as im:
|
|
assert im.getpixel((0, 0)) == 480
|
|
assert im.mode == "I;16"
|
|
|
|
b = im.tobytes()
|
|
# Bytes are in image native order (little endian)
|
|
assert b[0] == ord(b"\xe0")
|
|
assert b[1] == ord(b"\x01")
|
|
|
|
def test_big_endian(self):
|
|
with Image.open("Tests/images/16bit.MM.cropped.tif") as im:
|
|
assert im.getpixel((0, 0)) == 480
|
|
assert im.mode == "I;16B"
|
|
|
|
b = im.tobytes()
|
|
# Bytes are in image native order (big endian)
|
|
assert b[0] == ord(b"\x01")
|
|
assert b[1] == ord(b"\xe0")
|
|
|
|
def test_16bit_r(self):
|
|
with Image.open("Tests/images/16bit.r.tif") as im:
|
|
assert im.getpixel((0, 0)) == 480
|
|
assert im.mode == "I;16"
|
|
|
|
b = im.tobytes()
|
|
assert b[0] == ord(b"\xe0")
|
|
assert b[1] == ord(b"\x01")
|
|
|
|
def test_16bit_s(self):
|
|
with Image.open("Tests/images/16bit.s.tif") as im:
|
|
im.load()
|
|
assert im.mode == "I"
|
|
assert im.getpixel((0, 0)) == 32767
|
|
assert im.getpixel((0, 1)) == 0
|
|
|
|
def test_12bit_rawmode(self):
|
|
"""Are we generating the same interpretation
|
|
of the image as Imagemagick is?"""
|
|
|
|
with Image.open("Tests/images/12bit.cropped.tif") as im:
|
|
# to make the target --
|
|
# convert 12bit.cropped.tif -depth 16 tmp.tif
|
|
# convert tmp.tif -evaluate RightShift 4 12in16bit2.tif
|
|
# imagemagick will auto scale so that a 12bit FFF is 16bit FFF0,
|
|
# so we need to unshift so that the integer values are the same.
|
|
|
|
assert_image_equal_tofile(im, "Tests/images/12in16bit.tif")
|
|
|
|
def test_32bit_float(self):
|
|
# Issue 614, specific 32-bit float format
|
|
path = "Tests/images/10ct_32bit_128.tiff"
|
|
with Image.open(path) as im:
|
|
im.load()
|
|
|
|
assert im.getpixel((0, 0)) == -0.4526388943195343
|
|
assert im.getextrema() == (-3.140936851501465, 3.140684127807617)
|
|
|
|
def test_unknown_pixel_mode(self):
|
|
with pytest.raises(OSError):
|
|
with Image.open("Tests/images/hopper_unknown_pixel_mode.tif"):
|
|
pass
|
|
|
|
def test_n_frames(self):
|
|
for path, n_frames in [
|
|
["Tests/images/multipage-lastframe.tif", 1],
|
|
["Tests/images/multipage.tiff", 3],
|
|
]:
|
|
with Image.open(path) as im:
|
|
assert im.n_frames == n_frames
|
|
assert im.is_animated == (n_frames != 1)
|
|
|
|
def test_eoferror(self):
|
|
with Image.open("Tests/images/multipage-lastframe.tif") as im:
|
|
n_frames = im.n_frames
|
|
|
|
# Test seeking past the last frame
|
|
with pytest.raises(EOFError):
|
|
im.seek(n_frames)
|
|
assert im.tell() < n_frames
|
|
|
|
# Test that seeking to the last frame does not raise an error
|
|
im.seek(n_frames - 1)
|
|
|
|
def test_multipage(self):
|
|
# issue #862
|
|
with Image.open("Tests/images/multipage.tiff") as im:
|
|
# file is a multipage tiff: 10x10 green, 10x10 red, 20x20 blue
|
|
|
|
im.seek(0)
|
|
assert im.size == (10, 10)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (0, 128, 0)
|
|
|
|
im.seek(1)
|
|
im.load()
|
|
assert im.size == (10, 10)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (255, 0, 0)
|
|
|
|
im.seek(0)
|
|
im.load()
|
|
assert im.size == (10, 10)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (0, 128, 0)
|
|
|
|
im.seek(2)
|
|
im.load()
|
|
assert im.size == (20, 20)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (0, 0, 255)
|
|
|
|
def test_multipage_last_frame(self):
|
|
with Image.open("Tests/images/multipage-lastframe.tif") as im:
|
|
im.load()
|
|
assert im.size == (20, 20)
|
|
assert im.convert("RGB").getpixel((0, 0)) == (0, 0, 255)
|
|
|
|
def test_frame_order(self):
|
|
# A frame can't progress to itself after reading
|
|
with Image.open("Tests/images/multipage_single_frame_loop.tiff") as im:
|
|
assert im.n_frames == 1
|
|
|
|
# A frame can't progress to a frame that has already been read
|
|
with Image.open("Tests/images/multipage_multiple_frame_loop.tiff") as im:
|
|
assert im.n_frames == 2
|
|
|
|
# Frames don't have to be in sequence
|
|
with Image.open("Tests/images/multipage_out_of_order.tiff") as im:
|
|
assert im.n_frames == 3
|
|
|
|
def test___str__(self):
|
|
filename = "Tests/images/pil136.tiff"
|
|
with Image.open(filename) as im:
|
|
|
|
# Act
|
|
ret = str(im.ifd)
|
|
|
|
# Assert
|
|
assert isinstance(ret, str)
|
|
|
|
def test_dict(self):
|
|
# Arrange
|
|
filename = "Tests/images/pil136.tiff"
|
|
with Image.open(filename) as im:
|
|
|
|
# v2 interface
|
|
v2_tags = {
|
|
256: 55,
|
|
257: 43,
|
|
258: (8, 8, 8, 8),
|
|
259: 1,
|
|
262: 2,
|
|
296: 2,
|
|
273: (8,),
|
|
338: (1,),
|
|
277: 4,
|
|
279: (9460,),
|
|
282: 72.0,
|
|
283: 72.0,
|
|
284: 1,
|
|
}
|
|
assert dict(im.tag_v2) == v2_tags
|
|
|
|
# legacy interface
|
|
legacy_tags = {
|
|
256: (55,),
|
|
257: (43,),
|
|
258: (8, 8, 8, 8),
|
|
259: (1,),
|
|
262: (2,),
|
|
296: (2,),
|
|
273: (8,),
|
|
338: (1,),
|
|
277: (4,),
|
|
279: (9460,),
|
|
282: ((720000, 10000),),
|
|
283: ((720000, 10000),),
|
|
284: (1,),
|
|
}
|
|
assert dict(im.tag) == legacy_tags
|
|
|
|
def test__delitem__(self):
|
|
filename = "Tests/images/pil136.tiff"
|
|
with Image.open(filename) as im:
|
|
len_before = len(dict(im.ifd))
|
|
del im.ifd[256]
|
|
len_after = len(dict(im.ifd))
|
|
assert len_before == len_after + 1
|
|
|
|
def test_load_byte(self):
|
|
for legacy_api in [False, True]:
|
|
ifd = TiffImagePlugin.ImageFileDirectory_v2()
|
|
data = b"abc"
|
|
ret = ifd.load_byte(data, legacy_api)
|
|
assert ret == b"abc"
|
|
|
|
def test_load_string(self):
|
|
ifd = TiffImagePlugin.ImageFileDirectory_v2()
|
|
data = b"abc\0"
|
|
ret = ifd.load_string(data, False)
|
|
assert ret == "abc"
|
|
|
|
def test_load_float(self):
|
|
ifd = TiffImagePlugin.ImageFileDirectory_v2()
|
|
data = b"abcdabcd"
|
|
ret = ifd.load_float(data, False)
|
|
assert ret == (1.6777999408082104e22, 1.6777999408082104e22)
|
|
|
|
def test_load_double(self):
|
|
ifd = TiffImagePlugin.ImageFileDirectory_v2()
|
|
data = b"abcdefghabcdefgh"
|
|
ret = ifd.load_double(data, False)
|
|
assert ret == (8.540883223036124e194, 8.540883223036124e194)
|
|
|
|
def test_ifd_tag_type(self):
|
|
with Image.open("Tests/images/ifd_tag_type.tiff") as im:
|
|
assert 0x8825 in im.tag_v2
|
|
|
|
def test_exif(self, tmp_path):
|
|
def check_exif(exif):
|
|
assert sorted(exif.keys()) == [
|
|
256,
|
|
257,
|
|
258,
|
|
259,
|
|
262,
|
|
271,
|
|
272,
|
|
273,
|
|
277,
|
|
278,
|
|
279,
|
|
282,
|
|
283,
|
|
284,
|
|
296,
|
|
297,
|
|
305,
|
|
339,
|
|
700,
|
|
34665,
|
|
34853,
|
|
50735,
|
|
]
|
|
assert exif[256] == 640
|
|
assert exif[271] == "FLIR"
|
|
|
|
gps = exif.get_ifd(0x8825)
|
|
assert list(gps.keys()) == [0, 1, 2, 3, 4, 5, 6, 18]
|
|
assert gps[0] == b"\x03\x02\x00\x00"
|
|
assert gps[18] == "WGS-84"
|
|
|
|
outfile = str(tmp_path / "temp.tif")
|
|
with Image.open("Tests/images/ifd_tag_type.tiff") as im:
|
|
exif = im.getexif()
|
|
check_exif(exif)
|
|
|
|
im.save(outfile, exif=exif)
|
|
|
|
outfile2 = str(tmp_path / "temp2.tif")
|
|
with Image.open(outfile) as im:
|
|
exif = im.getexif()
|
|
check_exif(exif)
|
|
|
|
im.save(outfile2, exif=exif.tobytes())
|
|
|
|
with Image.open(outfile2) as im:
|
|
exif = im.getexif()
|
|
check_exif(exif)
|
|
|
|
def test_exif_frames(self):
|
|
# Test that EXIF data can change across frames
|
|
with Image.open("Tests/images/g4-multi.tiff") as im:
|
|
assert im.getexif()[273] == (328, 815)
|
|
|
|
im.seek(1)
|
|
assert im.getexif()[273] == (1408, 1907)
|
|
|
|
@pytest.mark.parametrize("mode", ("1", "L"))
|
|
def test_photometric(self, mode, tmp_path):
|
|
filename = str(tmp_path / "temp.tif")
|
|
im = hopper(mode)
|
|
im.save(filename, tiffinfo={262: 0})
|
|
with Image.open(filename) as reloaded:
|
|
assert reloaded.tag_v2[262] == 0
|
|
assert_image_equal(im, reloaded)
|
|
|
|
def test_seek(self):
|
|
filename = "Tests/images/pil136.tiff"
|
|
with Image.open(filename) as im:
|
|
im.seek(0)
|
|
assert im.tell() == 0
|
|
|
|
def test_seek_eof(self):
|
|
filename = "Tests/images/pil136.tiff"
|
|
with Image.open(filename) as im:
|
|
assert im.tell() == 0
|
|
with pytest.raises(EOFError):
|
|
im.seek(-1)
|
|
with pytest.raises(EOFError):
|
|
im.seek(1)
|
|
|
|
def test__limit_rational_int(self):
|
|
from PIL.TiffImagePlugin import _limit_rational
|
|
|
|
value = 34
|
|
ret = _limit_rational(value, 65536)
|
|
assert ret == (34, 1)
|
|
|
|
def test__limit_rational_float(self):
|
|
from PIL.TiffImagePlugin import _limit_rational
|
|
|
|
value = 22.3
|
|
ret = _limit_rational(value, 65536)
|
|
assert ret == (223, 10)
|
|
|
|
def test_4bit(self):
|
|
test_file = "Tests/images/hopper_gray_4bpp.tif"
|
|
original = hopper("L")
|
|
with Image.open(test_file) as im:
|
|
assert im.size == (128, 128)
|
|
assert im.mode == "L"
|
|
assert_image_similar(im, original, 7.3)
|
|
|
|
def test_gray_semibyte_per_pixel(self):
|
|
test_files = (
|
|
(
|
|
24.8, # epsilon
|
|
( # group
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper2.tif",
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper2I.tif",
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper2R.tif",
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper2IR.tif",
|
|
),
|
|
),
|
|
(
|
|
7.3, # epsilon
|
|
( # group
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper4.tif",
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper4I.tif",
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper4R.tif",
|
|
"Tests/images/tiff_gray_2_4_bpp/hopper4IR.tif",
|
|
),
|
|
),
|
|
)
|
|
original = hopper("L")
|
|
for epsilon, group in test_files:
|
|
with Image.open(group[0]) as im:
|
|
assert im.size == (128, 128)
|
|
assert im.mode == "L"
|
|
assert_image_similar(im, original, epsilon)
|
|
for file in group[1:]:
|
|
with Image.open(file) as im2:
|
|
assert im2.size == (128, 128)
|
|
assert im2.mode == "L"
|
|
assert_image_equal(im, im2)
|
|
|
|
def test_with_underscores(self, tmp_path):
|
|
kwargs = {"resolution_unit": "inch", "x_resolution": 72, "y_resolution": 36}
|
|
filename = str(tmp_path / "temp.tif")
|
|
hopper("RGB").save(filename, **kwargs)
|
|
with Image.open(filename) as im:
|
|
|
|
# legacy interface
|
|
assert im.tag[X_RESOLUTION][0][0] == 72
|
|
assert im.tag[Y_RESOLUTION][0][0] == 36
|
|
|
|
# v2 interface
|
|
assert im.tag_v2[X_RESOLUTION] == 72
|
|
assert im.tag_v2[Y_RESOLUTION] == 36
|
|
|
|
def test_roundtrip_tiff_uint16(self, tmp_path):
|
|
# Test an image of all '0' values
|
|
pixel_value = 0x1234
|
|
infile = "Tests/images/uint16_1_4660.tif"
|
|
with Image.open(infile) as im:
|
|
assert im.getpixel((0, 0)) == pixel_value
|
|
|
|
tmpfile = str(tmp_path / "temp.tif")
|
|
im.save(tmpfile)
|
|
|
|
assert_image_equal_tofile(im, tmpfile)
|
|
|
|
def test_strip_raw(self):
|
|
infile = "Tests/images/tiff_strip_raw.tif"
|
|
with Image.open(infile) as im:
|
|
assert_image_equal_tofile(im, "Tests/images/tiff_adobe_deflate.png")
|
|
|
|
def test_strip_planar_raw(self):
|
|
# gdal_translate -of GTiff -co INTERLEAVE=BAND \
|
|
# tiff_strip_raw.tif tiff_strip_planar_raw.tiff
|
|
infile = "Tests/images/tiff_strip_planar_raw.tif"
|
|
with Image.open(infile) as im:
|
|
assert_image_equal_tofile(im, "Tests/images/tiff_adobe_deflate.png")
|
|
|
|
def test_strip_planar_raw_with_overviews(self):
|
|
# gdaladdo tiff_strip_planar_raw2.tif 2 4 8 16
|
|
infile = "Tests/images/tiff_strip_planar_raw_with_overviews.tif"
|
|
with Image.open(infile) as im:
|
|
assert_image_equal_tofile(im, "Tests/images/tiff_adobe_deflate.png")
|
|
|
|
def test_tiled_planar_raw(self):
|
|
# gdal_translate -of GTiff -co TILED=YES -co BLOCKXSIZE=32 \
|
|
# -co BLOCKYSIZE=32 -co INTERLEAVE=BAND \
|
|
# tiff_tiled_raw.tif tiff_tiled_planar_raw.tiff
|
|
infile = "Tests/images/tiff_tiled_planar_raw.tif"
|
|
with Image.open(infile) as im:
|
|
assert_image_equal_tofile(im, "Tests/images/tiff_adobe_deflate.png")
|
|
|
|
def test_planar_configuration_save(self, tmp_path):
|
|
infile = "Tests/images/tiff_tiled_planar_raw.tif"
|
|
with Image.open(infile) as im:
|
|
assert im._planar_configuration == 2
|
|
|
|
outfile = str(tmp_path / "temp.tif")
|
|
im.save(outfile)
|
|
|
|
with Image.open(outfile) as reloaded:
|
|
assert_image_equal_tofile(reloaded, infile)
|
|
|
|
def test_palette(self, tmp_path):
|
|
def roundtrip(mode):
|
|
outfile = str(tmp_path / "temp.tif")
|
|
|
|
im = hopper(mode)
|
|
im.save(outfile)
|
|
|
|
with Image.open(outfile) as reloaded:
|
|
assert_image_equal(im.convert("RGB"), reloaded.convert("RGB"))
|
|
|
|
for mode in ["P", "PA"]:
|
|
roundtrip(mode)
|
|
|
|
def test_tiff_save_all(self):
|
|
mp = BytesIO()
|
|
with Image.open("Tests/images/multipage.tiff") as im:
|
|
im.save(mp, format="tiff", save_all=True)
|
|
|
|
mp.seek(0, os.SEEK_SET)
|
|
with Image.open(mp) as im:
|
|
assert im.n_frames == 3
|
|
|
|
# Test appending images
|
|
mp = BytesIO()
|
|
im = Image.new("RGB", (100, 100), "#f00")
|
|
ims = [Image.new("RGB", (100, 100), color) for color in ["#0f0", "#00f"]]
|
|
im.copy().save(mp, format="TIFF", save_all=True, append_images=ims)
|
|
|
|
mp.seek(0, os.SEEK_SET)
|
|
with Image.open(mp) as reread:
|
|
assert reread.n_frames == 3
|
|
|
|
# Test appending using a generator
|
|
def im_generator(ims):
|
|
yield from ims
|
|
|
|
mp = BytesIO()
|
|
im.save(mp, format="TIFF", save_all=True, append_images=im_generator(ims))
|
|
|
|
mp.seek(0, os.SEEK_SET)
|
|
with Image.open(mp) as reread:
|
|
assert reread.n_frames == 3
|
|
|
|
def test_saving_icc_profile(self, tmp_path):
|
|
# Tests saving TIFF with icc_profile set.
|
|
# At the time of writing this will only work for non-compressed tiffs
|
|
# as libtiff does not support embedded ICC profiles,
|
|
# ImageFile._save(..) however does.
|
|
im = Image.new("RGB", (1, 1))
|
|
im.info["icc_profile"] = "Dummy value"
|
|
|
|
# Try save-load round trip to make sure both handle icc_profile.
|
|
tmpfile = str(tmp_path / "temp.tif")
|
|
im.save(tmpfile, "TIFF", compression="raw")
|
|
with Image.open(tmpfile) as reloaded:
|
|
assert b"Dummy value" == reloaded.info["icc_profile"]
|
|
|
|
def test_save_icc_profile(self, tmp_path):
|
|
im = hopper()
|
|
assert "icc_profile" not in im.info
|
|
|
|
outfile = str(tmp_path / "temp.tif")
|
|
icc_profile = b"Dummy value"
|
|
im.save(outfile, icc_profile=icc_profile)
|
|
|
|
with Image.open(outfile) as reloaded:
|
|
assert reloaded.info["icc_profile"] == icc_profile
|
|
|
|
def test_discard_icc_profile(self, tmp_path):
|
|
outfile = str(tmp_path / "temp.tif")
|
|
|
|
with Image.open("Tests/images/icc_profile.png") as im:
|
|
assert "icc_profile" in im.info
|
|
|
|
im.save(outfile, icc_profile=None)
|
|
|
|
with Image.open(outfile) as reloaded:
|
|
assert "icc_profile" not in reloaded.info
|
|
|
|
def test_getxmp(self):
|
|
with Image.open("Tests/images/lab.tif") as im:
|
|
if ElementTree is None:
|
|
with pytest.warns(UserWarning):
|
|
assert im.getxmp() == {}
|
|
else:
|
|
xmp = im.getxmp()
|
|
|
|
description = xmp["xmpmeta"]["RDF"]["Description"]
|
|
assert description[0]["format"] == "image/tiff"
|
|
assert description[3]["BitsPerSample"]["Seq"]["li"] == ["8", "8", "8"]
|
|
|
|
def test_get_photoshop_blocks(self):
|
|
with Image.open("Tests/images/lab.tif") as im:
|
|
assert list(im.get_photoshop_blocks().keys()) == [
|
|
1061,
|
|
1002,
|
|
1005,
|
|
1062,
|
|
1037,
|
|
1049,
|
|
1011,
|
|
1034,
|
|
10000,
|
|
1013,
|
|
1016,
|
|
1032,
|
|
1054,
|
|
1050,
|
|
1064,
|
|
1041,
|
|
1044,
|
|
1036,
|
|
1057,
|
|
4000,
|
|
4001,
|
|
]
|
|
|
|
def test_close_on_load_exclusive(self, tmp_path):
|
|
# similar to test_fd_leak, but runs on unixlike os
|
|
tmpfile = str(tmp_path / "temp.tif")
|
|
|
|
with Image.open("Tests/images/uint16_1_4660.tif") as im:
|
|
im.save(tmpfile)
|
|
|
|
im = Image.open(tmpfile)
|
|
fp = im.fp
|
|
assert not fp.closed
|
|
im.load()
|
|
assert fp.closed
|
|
|
|
def test_close_on_load_nonexclusive(self, tmp_path):
|
|
tmpfile = str(tmp_path / "temp.tif")
|
|
|
|
with Image.open("Tests/images/uint16_1_4660.tif") as im:
|
|
im.save(tmpfile)
|
|
|
|
with open(tmpfile, "rb") as f:
|
|
im = Image.open(f)
|
|
fp = im.fp
|
|
assert not fp.closed
|
|
im.load()
|
|
assert not fp.closed
|
|
|
|
# Ignore this UserWarning which triggers for four tags:
|
|
# "Possibly corrupt EXIF data. Expecting to read 50404352 bytes but..."
|
|
@pytest.mark.filterwarnings("ignore:Possibly corrupt EXIF data")
|
|
# Ignore this UserWarning:
|
|
@pytest.mark.filterwarnings("ignore:Truncated File Read")
|
|
@pytest.mark.skipif(
|
|
not os.path.exists("Tests/images/string_dimension.tiff"),
|
|
reason="Extra image files not installed",
|
|
)
|
|
def test_string_dimension(self):
|
|
# Assert that an error is raised if one of the dimensions is a string
|
|
with Image.open("Tests/images/string_dimension.tiff") as im:
|
|
with pytest.raises(OSError):
|
|
im.load()
|
|
|
|
@pytest.mark.timeout(6)
|
|
@pytest.mark.filterwarnings("ignore:Truncated File Read")
|
|
def test_timeout(self):
|
|
with Image.open("Tests/images/timeout-6646305047838720") as im:
|
|
ImageFile.LOAD_TRUNCATED_IMAGES = True
|
|
im.load()
|
|
ImageFile.LOAD_TRUNCATED_IMAGES = False
|
|
|
|
|
|
@pytest.mark.skipif(not is_win32(), reason="Windows only")
|
|
class TestFileTiffW32:
|
|
def test_fd_leak(self, tmp_path):
|
|
tmpfile = str(tmp_path / "temp.tif")
|
|
|
|
# this is an mmaped file.
|
|
with Image.open("Tests/images/uint16_1_4660.tif") as im:
|
|
im.save(tmpfile)
|
|
|
|
im = Image.open(tmpfile)
|
|
fp = im.fp
|
|
assert not fp.closed
|
|
with pytest.raises(OSError):
|
|
os.remove(tmpfile)
|
|
im.load()
|
|
assert fp.closed
|
|
|
|
# this closes the mmap
|
|
im.close()
|
|
|
|
# this should not fail, as load should have closed the file pointer,
|
|
# and close should have closed the mmap
|
|
os.remove(tmpfile)
|