2023-12-21 14:13:31 +03:00
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from __future__ import annotations
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2024-01-20 14:23:03 +03:00
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2020-10-20 08:33:01 +03:00
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import os
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2020-02-22 19:07:04 +03:00
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import re
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2019-07-06 23:40:53 +03:00
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from io import BytesIO
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2024-01-31 12:12:58 +03:00
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from pathlib import Path
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2024-02-07 11:16:28 +03:00
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from typing import Any
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2014-03-19 16:17:14 +04:00
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2020-01-05 00:07:59 +03:00
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import pytest
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2020-08-07 13:28:33 +03:00
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2023-01-31 14:31:52 +03:00
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from PIL import (
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Image,
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ImageFile,
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Jpeg2KImagePlugin,
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UnidentifiedImageError,
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_binary,
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features,
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)
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2019-07-06 23:40:53 +03:00
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2020-01-30 17:56:07 +03:00
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from .helper import (
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assert_image_equal,
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assert_image_similar,
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2021-02-21 14:22:29 +03:00
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assert_image_similar_tofile,
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2020-02-18 01:03:32 +03:00
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skip_unless_feature,
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2023-01-31 13:49:12 +03:00
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skip_unless_feature_version,
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2020-01-30 17:56:07 +03:00
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)
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2014-03-19 16:17:14 +04:00
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2020-10-20 08:33:01 +03:00
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EXTRA_DIR = "Tests/images/jpeg2000"
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2020-03-02 17:02:19 +03:00
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pytestmark = skip_unless_feature("jpg_2000")
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2019-06-13 18:54:11 +03:00
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test_card = Image.open("Tests/images/test-card.png")
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2014-03-19 16:17:14 +04:00
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test_card.load()
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2014-06-10 13:10:47 +04:00
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# OpenJPEG 2.0.0 outputs this debugging message sometimes; we should
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# ignore it---it doesn't represent a test failure.
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# 'Not enough memory to handle tile data'
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2024-02-07 11:16:28 +03:00
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def roundtrip(im: Image.Image, **options: Any) -> Image.Image:
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2020-03-02 17:02:19 +03:00
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out = BytesIO()
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im.save(out, "JPEG2000", **options)
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out.seek(0)
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2021-11-25 15:16:07 +03:00
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with Image.open(out) as im:
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im.load()
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2020-03-02 17:02:19 +03:00
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return im
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2024-01-31 12:12:58 +03:00
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def test_sanity() -> None:
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2020-03-02 17:02:19 +03:00
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# Internal version number
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2024-05-30 05:00:50 +03:00
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version = features.version_codec("jpg_2000")
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assert version is not None
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assert re.search(r"\d+\.\d+\.\d+$", version)
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2020-03-02 17:02:19 +03:00
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with Image.open("Tests/images/test-card-lossless.jp2") as im:
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px = im.load()
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assert px[0, 0] == (0, 0, 0)
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assert im.mode == "RGB"
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assert im.size == (640, 480)
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assert im.format == "JPEG2000"
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assert im.get_format_mimetype() == "image/jp2"
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2024-01-31 12:12:58 +03:00
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def test_jpf() -> None:
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2020-03-02 17:02:19 +03:00
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with Image.open("Tests/images/balloon.jpf") as im:
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assert im.format == "JPEG2000"
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assert im.get_format_mimetype() == "image/jpx"
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2024-01-31 12:12:58 +03:00
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def test_invalid_file() -> None:
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2020-03-02 17:02:19 +03:00
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invalid_file = "Tests/images/flower.jpg"
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with pytest.raises(SyntaxError):
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Jpeg2KImagePlugin.Jpeg2KImageFile(invalid_file)
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2024-01-31 12:12:58 +03:00
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def test_bytesio() -> None:
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2020-03-02 17:02:19 +03:00
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with open("Tests/images/test-card-lossless.jp2", "rb") as f:
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data = BytesIO(f.read())
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2024-03-02 05:12:17 +03:00
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with Image.open(data) as im:
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im.load()
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assert_image_similar(im, test_card, 1.0e-3)
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2014-06-10 13:10:47 +04:00
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2020-03-02 17:02:19 +03:00
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# These two test pre-written JPEG 2000 files that were not written with
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# PIL (they were made using Adobe Photoshop)
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2014-06-10 13:10:47 +04:00
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2024-01-31 12:12:58 +03:00
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def test_lossless(tmp_path: Path) -> None:
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2020-03-02 17:02:19 +03:00
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with Image.open("Tests/images/test-card-lossless.jp2") as im:
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im.load()
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outfile = str(tmp_path / "temp_test-card.png")
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im.save(outfile)
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assert_image_similar(im, test_card, 1.0e-3)
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2024-01-31 12:12:58 +03:00
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def test_lossy_tiled() -> None:
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2021-02-21 14:22:29 +03:00
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assert_image_similar_tofile(
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test_card, "Tests/images/test-card-lossy-tiled.jp2", 2.0
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)
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2014-06-10 13:10:47 +04:00
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2024-01-31 12:12:58 +03:00
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def test_lossless_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card)
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assert_image_equal(im, test_card)
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2014-06-10 13:10:47 +04:00
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2019-07-13 06:50:13 +03:00
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2024-01-31 12:12:58 +03:00
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def test_lossy_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card, quality_layers=[20])
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assert_image_similar(im, test_card, 2.0)
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2014-06-10 13:10:47 +04:00
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2024-01-31 12:12:58 +03:00
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def test_tiled_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card, tile_size=(128, 128))
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assert_image_equal(im, test_card)
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2024-01-31 12:12:58 +03:00
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def test_tiled_offset_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card, tile_size=(128, 128), tile_offset=(0, 0), offset=(32, 32))
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assert_image_equal(im, test_card)
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2024-01-31 12:12:58 +03:00
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def test_tiled_offset_too_small() -> None:
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2020-03-02 17:02:19 +03:00
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with pytest.raises(ValueError):
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roundtrip(test_card, tile_size=(128, 128), tile_offset=(0, 0), offset=(128, 32))
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2014-06-10 13:10:47 +04:00
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2024-01-31 12:12:58 +03:00
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def test_irreversible_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card, irreversible=True, quality_layers=[20])
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assert_image_similar(im, test_card, 2.0)
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2024-01-31 12:12:58 +03:00
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def test_prog_qual_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card, quality_layers=[60, 40, 20], progression="LRCP")
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assert_image_similar(im, test_card, 2.0)
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2024-01-31 12:12:58 +03:00
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def test_prog_res_rt() -> None:
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2020-03-02 17:02:19 +03:00
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im = roundtrip(test_card, num_resolutions=8, progression="RLCP")
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assert_image_equal(im, test_card)
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2022-10-03 08:57:42 +03:00
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@pytest.mark.parametrize("num_resolutions", range(2, 6))
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2024-02-07 11:16:28 +03:00
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def test_default_num_resolutions(num_resolutions: int) -> None:
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2022-10-03 08:57:42 +03:00
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d = 1 << (num_resolutions - 1)
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im = test_card.resize((d - 1, d - 1))
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with pytest.raises(OSError):
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roundtrip(im, num_resolutions=num_resolutions)
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reloaded = roundtrip(im)
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assert_image_equal(im, reloaded)
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2021-06-14 04:23:56 +03:00
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2024-01-31 12:12:58 +03:00
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def test_reduce() -> None:
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2020-03-02 17:02:19 +03:00
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with Image.open("Tests/images/test-card-lossless.jp2") as im:
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2020-03-24 11:19:46 +03:00
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assert callable(im.reduce)
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2020-03-02 17:02:19 +03:00
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im.reduce = 2
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2020-03-24 11:19:46 +03:00
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assert im.reduce == 2
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2020-03-02 17:02:19 +03:00
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im.load()
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assert im.size == (160, 120)
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2014-06-10 13:10:47 +04:00
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2020-03-29 08:29:34 +03:00
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im.thumbnail((40, 40))
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assert im.size == (40, 30)
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2020-03-24 11:19:46 +03:00
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2020-03-02 17:02:19 +03:00
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2024-01-31 12:12:58 +03:00
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def test_load_dpi() -> None:
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2021-06-30 15:53:11 +03:00
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with Image.open("Tests/images/test-card-lossless.jp2") as im:
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assert im.info["dpi"] == (71.9836, 71.9836)
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2021-08-01 11:38:56 +03:00
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with Image.open("Tests/images/zero_dpi.jp2") as im:
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assert "dpi" not in im.info
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2021-06-30 15:53:11 +03:00
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2024-01-31 12:12:58 +03:00
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def test_restricted_icc_profile() -> None:
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2021-08-04 18:06:01 +03:00
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ImageFile.LOAD_TRUNCATED_IMAGES = True
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try:
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# JPEG2000 image with a restricted ICC profile and a known colorspace
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with Image.open("Tests/images/balloon_eciRGBv2_aware.jp2") as im:
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assert im.mode == "RGB"
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finally:
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ImageFile.LOAD_TRUNCATED_IMAGES = False
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2024-01-31 12:12:58 +03:00
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def test_header_errors() -> None:
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2021-08-01 12:01:43 +03:00
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for path in (
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"Tests/images/invalid_header_length.jp2",
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"Tests/images/not_enough_data.jp2",
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):
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with pytest.raises(UnidentifiedImageError):
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with Image.open(path):
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pass
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with pytest.raises(OSError):
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with Image.open("Tests/images/expected_to_read.jp2"):
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pass
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2024-01-31 12:12:58 +03:00
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def test_layers_type(tmp_path: Path) -> None:
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2020-03-02 17:02:19 +03:00
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outfile = str(tmp_path / "temp_layers.jp2")
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for quality_layers in [[100, 50, 10], (100, 50, 10), None]:
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test_card.save(outfile, quality_layers=quality_layers)
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2024-02-07 11:16:28 +03:00
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for quality_layers_str in ["quality_layers", ("100", "50", "10")]:
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2020-03-02 17:02:19 +03:00
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with pytest.raises(ValueError):
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2024-02-07 11:16:28 +03:00
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test_card.save(outfile, quality_layers=quality_layers_str)
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2018-11-16 15:31:42 +03:00
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2014-06-25 22:06:56 +04:00
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2024-01-31 12:12:58 +03:00
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def test_layers() -> None:
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2020-03-02 17:02:19 +03:00
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out = BytesIO()
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test_card.save(out, "JPEG2000", quality_layers=[100, 50, 10], progression="LRCP")
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out.seek(0)
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with Image.open(out) as im:
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im.layers = 1
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im.load()
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assert_image_similar(im, test_card, 13)
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out.seek(0)
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with Image.open(out) as im:
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im.layers = 3
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im.load()
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assert_image_similar(im, test_card, 0.4)
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2021-05-27 12:02:04 +03:00
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@pytest.mark.parametrize(
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"name, args, offset, data",
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(
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("foo.j2k", {}, 0, b"\xff\x4f"),
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("foo.jp2", {}, 4, b"jP"),
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(None, {"no_jp2": True}, 0, b"\xff\x4f"),
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("foo.j2k", {"no_jp2": True}, 0, b"\xff\x4f"),
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("foo.jp2", {"no_jp2": True}, 0, b"\xff\x4f"),
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("foo.j2k", {"no_jp2": False}, 0, b"\xff\x4f"),
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("foo.jp2", {"no_jp2": False}, 4, b"jP"),
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("foo.jp2", {"no_jp2": False}, 4, b"jP"),
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),
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)
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2024-02-07 11:16:28 +03:00
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def test_no_jp2(name: str, args: dict[str, bool], offset: int, data: bytes) -> None:
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2021-05-16 03:46:43 +03:00
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out = BytesIO()
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2021-05-27 12:02:04 +03:00
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if name:
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out.name = name
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test_card.save(out, "JPEG2000", **args)
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out.seek(offset)
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assert out.read(2) == data
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2021-05-16 03:46:43 +03:00
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2021-05-11 13:01:35 +03:00
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2024-01-31 12:12:58 +03:00
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def test_mct() -> None:
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2021-05-11 13:01:35 +03:00
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# Three component
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for val in (0, 1):
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out = BytesIO()
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2021-05-16 03:46:43 +03:00
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test_card.save(out, "JPEG2000", mct=val, no_jp2=True)
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2021-05-27 11:42:07 +03:00
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assert out.getvalue()[59] == val
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2021-05-11 13:01:35 +03:00
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with Image.open(out) as im:
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assert_image_similar(im, test_card, 1.0e-3)
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2021-05-16 03:46:43 +03:00
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# Single component should have MCT disabled
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2021-05-11 13:01:35 +03:00
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for val in (0, 1):
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out = BytesIO()
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with Image.open("Tests/images/16bit.cropped.jp2") as jp2:
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2021-05-16 03:46:43 +03:00
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jp2.save(out, "JPEG2000", mct=val, no_jp2=True)
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2021-05-11 13:01:35 +03:00
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2021-05-27 11:42:07 +03:00
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assert out.getvalue()[53] == 0
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2021-05-11 13:01:35 +03:00
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with Image.open(out) as im:
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assert_image_similar(im, jp2, 1.0e-3)
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2024-01-31 12:12:58 +03:00
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def test_sgnd(tmp_path: Path) -> None:
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2022-11-03 10:26:31 +03:00
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outfile = str(tmp_path / "temp.jp2")
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im = Image.new("L", (1, 1))
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im.save(outfile)
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with Image.open(outfile) as reloaded:
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assert reloaded.getpixel((0, 0)) == 0
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im = Image.new("L", (1, 1))
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im.save(outfile, signed=True)
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with Image.open(outfile) as reloaded_signed:
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assert reloaded_signed.getpixel((0, 0)) == 128
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2023-07-22 13:00:42 +03:00
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@pytest.mark.parametrize("ext", (".j2k", ".jp2"))
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2024-02-07 11:16:28 +03:00
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def test_rgba(ext: str) -> None:
|
2020-03-02 17:02:19 +03:00
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# Arrange
|
2023-07-22 13:00:42 +03:00
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with Image.open("Tests/images/rgb_trns_ycbc" + ext) as im:
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# Act
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im.load()
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# Assert
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assert im.mode == "RGBA"
|
2014-06-25 22:06:56 +04:00
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|
2024-04-06 05:40:39 +03:00
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@pytest.mark.skipif(
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|
|
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not os.path.exists(EXTRA_DIR), reason="Extra image files not installed"
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|
)
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|
@skip_unless_feature_version("jpg_2000", "2.5.1")
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def test_cmyk() -> None:
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with Image.open(f"{EXTRA_DIR}/issue205.jp2") as im:
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assert im.mode == "CMYK"
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assert im.getpixel((0, 0)) == (185, 134, 0, 0)
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|
2022-10-03 08:57:42 +03:00
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@pytest.mark.parametrize("ext", (".j2k", ".jp2"))
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2024-02-07 11:16:28 +03:00
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def test_16bit_monochrome_has_correct_mode(ext: str) -> None:
|
2022-10-03 08:57:42 +03:00
|
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with Image.open("Tests/images/16bit.cropped" + ext) as im:
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im.load()
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assert im.mode == "I;16"
|
2020-03-02 17:02:19 +03:00
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|
2024-01-31 12:12:58 +03:00
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def test_16bit_monochrome_jp2_like_tiff() -> None:
|
2020-03-02 17:02:19 +03:00
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with Image.open("Tests/images/16bit.cropped.tif") as tiff_16bit:
|
2021-02-21 14:22:29 +03:00
|
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assert_image_similar_tofile(tiff_16bit, "Tests/images/16bit.cropped.jp2", 1e-3)
|
2020-03-02 17:02:19 +03:00
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|
2024-01-31 12:12:58 +03:00
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def test_16bit_monochrome_j2k_like_tiff() -> None:
|
2020-03-02 17:02:19 +03:00
|
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|
with Image.open("Tests/images/16bit.cropped.tif") as tiff_16bit:
|
2021-02-21 14:22:29 +03:00
|
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|
assert_image_similar_tofile(tiff_16bit, "Tests/images/16bit.cropped.j2k", 1e-3)
|
2020-03-02 17:02:19 +03:00
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|
2024-01-31 12:12:58 +03:00
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def test_16bit_j2k_roundtrips() -> None:
|
2020-03-02 17:02:19 +03:00
|
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|
with Image.open("Tests/images/16bit.cropped.j2k") as j2k:
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|
im = roundtrip(j2k)
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assert_image_equal(im, j2k)
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|
2024-01-31 12:12:58 +03:00
|
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|
def test_16bit_jp2_roundtrips() -> None:
|
2020-03-02 17:02:19 +03:00
|
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|
with Image.open("Tests/images/16bit.cropped.jp2") as jp2:
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|
im = roundtrip(jp2)
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|
assert_image_equal(im, jp2)
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|
2024-01-31 12:12:58 +03:00
|
|
|
def test_issue_6194() -> None:
|
2022-04-12 16:12:45 +03:00
|
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|
with Image.open("Tests/images/issue_6194.j2k") as im:
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|
|
assert im.getpixel((5, 5)) == 31
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|
2024-01-31 12:12:58 +03:00
|
|
|
def test_unbound_local() -> None:
|
2020-03-02 17:02:19 +03:00
|
|
|
# prepatch, a malformed jp2 file could cause an UnboundLocalError exception.
|
2020-04-07 09:58:21 +03:00
|
|
|
with pytest.raises(OSError):
|
2021-02-11 13:43:54 +03:00
|
|
|
with Image.open("Tests/images/unbound_variable.jp2"):
|
|
|
|
pass
|
2020-03-02 17:02:19 +03:00
|
|
|
|
|
|
|
|
2024-01-31 12:12:58 +03:00
|
|
|
def test_parser_feed() -> None:
|
2020-03-02 17:02:19 +03:00
|
|
|
# Arrange
|
|
|
|
with open("Tests/images/test-card-lossless.jp2", "rb") as f:
|
|
|
|
data = f.read()
|
|
|
|
|
|
|
|
# Act
|
|
|
|
p = ImageFile.Parser()
|
|
|
|
p.feed(data)
|
|
|
|
|
|
|
|
# Assert
|
2024-03-02 05:12:17 +03:00
|
|
|
assert p.image is not None
|
2020-03-02 17:02:19 +03:00
|
|
|
assert p.image.size == (640, 480)
|
2020-10-20 08:33:01 +03:00
|
|
|
|
|
|
|
|
|
|
|
@pytest.mark.skipif(
|
|
|
|
not os.path.exists(EXTRA_DIR), reason="Extra image files not installed"
|
|
|
|
)
|
|
|
|
@pytest.mark.parametrize("name", ("subsampling_1", "subsampling_2", "zoo1", "zoo2"))
|
2024-02-07 11:16:28 +03:00
|
|
|
def test_subsampling_decode(name: str) -> None:
|
2020-10-20 08:33:01 +03:00
|
|
|
test = f"{EXTRA_DIR}/{name}.jp2"
|
|
|
|
reference = f"{EXTRA_DIR}/{name}.ppm"
|
|
|
|
|
|
|
|
with Image.open(test) as im:
|
2024-02-07 11:16:28 +03:00
|
|
|
epsilon = 3.0 # for YCbCr images
|
2020-10-20 08:33:01 +03:00
|
|
|
with Image.open(reference) as im2:
|
|
|
|
width, height = im2.size
|
|
|
|
if name[-1] == "2":
|
|
|
|
# RGB reference images are downscaled
|
|
|
|
epsilon = 3e-3
|
|
|
|
width, height = width * 2, height * 2
|
2022-01-15 01:02:31 +03:00
|
|
|
expected = im2.resize((width, height), Image.Resampling.NEAREST)
|
2020-10-20 08:33:01 +03:00
|
|
|
assert_image_similar(im, expected, epsilon)
|
2021-04-03 01:26:55 +03:00
|
|
|
|
|
|
|
|
2024-03-12 11:30:23 +03:00
|
|
|
@pytest.mark.skipif(
|
|
|
|
not os.path.exists(EXTRA_DIR), reason="Extra image files not installed"
|
|
|
|
)
|
|
|
|
def test_pclr() -> None:
|
|
|
|
with Image.open(f"{EXTRA_DIR}/issue104_jpxstream.jp2") as im:
|
|
|
|
assert im.mode == "P"
|
|
|
|
assert len(im.palette.colors) == 256
|
|
|
|
assert im.palette.colors[(255, 255, 255)] == 0
|
|
|
|
|
|
|
|
|
2024-01-31 12:12:58 +03:00
|
|
|
def test_comment() -> None:
|
2023-03-09 05:36:22 +03:00
|
|
|
with Image.open("Tests/images/comment.jp2") as im:
|
|
|
|
assert im.info["comment"] == b"Created by OpenJPEG version 2.5.0"
|
|
|
|
|
|
|
|
# Test an image that is truncated partway through a codestream
|
|
|
|
with open("Tests/images/comment.jp2", "rb") as fp:
|
|
|
|
b = BytesIO(fp.read(130))
|
|
|
|
with Image.open(b) as im:
|
|
|
|
pass
|
|
|
|
|
|
|
|
|
2024-01-31 12:12:58 +03:00
|
|
|
def test_save_comment() -> None:
|
2023-03-24 01:45:51 +03:00
|
|
|
for comment in ("Created by Pillow", b"Created by Pillow"):
|
|
|
|
out = BytesIO()
|
|
|
|
test_card.save(out, "JPEG2000", comment=comment)
|
2023-03-23 09:53:35 +03:00
|
|
|
|
2023-03-24 01:45:51 +03:00
|
|
|
with Image.open(out) as im:
|
|
|
|
assert im.info["comment"] == b"Created by Pillow"
|
2023-03-23 09:53:35 +03:00
|
|
|
|
2023-03-29 11:19:05 +03:00
|
|
|
out = BytesIO()
|
|
|
|
long_comment = b" " * 65531
|
|
|
|
test_card.save(out, "JPEG2000", comment=long_comment)
|
|
|
|
with Image.open(out) as im:
|
|
|
|
assert im.info["comment"] == long_comment
|
|
|
|
|
2023-03-23 09:53:35 +03:00
|
|
|
with pytest.raises(ValueError):
|
2023-03-29 11:19:05 +03:00
|
|
|
test_card.save(out, "JPEG2000", comment=long_comment + b" ")
|
2023-03-23 09:53:35 +03:00
|
|
|
|
|
|
|
|
2021-03-07 14:32:12 +03:00
|
|
|
@pytest.mark.parametrize(
|
|
|
|
"test_file",
|
|
|
|
[
|
|
|
|
"Tests/images/crash-4fb027452e6988530aa5dabee76eecacb3b79f8a.j2k",
|
|
|
|
"Tests/images/crash-7d4c83eb92150fb8f1653a697703ae06ae7c4998.j2k",
|
|
|
|
"Tests/images/crash-ccca68ff40171fdae983d924e127a721cab2bd50.j2k",
|
|
|
|
"Tests/images/crash-d2c93af851d3ab9a19e34503626368b2ecde9c03.j2k",
|
|
|
|
],
|
|
|
|
)
|
2024-02-07 11:16:28 +03:00
|
|
|
def test_crashes(test_file: str) -> None:
|
2021-03-07 14:32:12 +03:00
|
|
|
with open(test_file, "rb") as f:
|
|
|
|
with Image.open(f) as im:
|
|
|
|
# Valgrind should not complain here
|
2021-04-03 01:34:56 +03:00
|
|
|
try:
|
|
|
|
im.load()
|
|
|
|
except OSError:
|
|
|
|
pass
|
2023-01-19 03:37:14 +03:00
|
|
|
|
|
|
|
|
2023-01-31 13:49:12 +03:00
|
|
|
@skip_unless_feature_version("jpg_2000", "2.4.0")
|
2024-01-31 12:12:58 +03:00
|
|
|
def test_plt_marker() -> None:
|
2023-03-29 12:14:29 +03:00
|
|
|
# Search the start of the codesteam for PLT
|
2023-01-31 13:49:12 +03:00
|
|
|
out = BytesIO()
|
2023-03-27 14:38:29 +03:00
|
|
|
test_card.save(out, "JPEG2000", no_jp2=True, plt=True)
|
2023-01-31 13:49:12 +03:00
|
|
|
out.seek(0)
|
|
|
|
while True:
|
2023-03-29 12:14:29 +03:00
|
|
|
marker = out.read(2)
|
|
|
|
if not marker:
|
2023-11-12 23:30:28 +03:00
|
|
|
pytest.fail("End of stream without PLT")
|
2023-01-31 13:49:12 +03:00
|
|
|
|
2023-03-29 12:14:29 +03:00
|
|
|
jp2_boxid = _binary.i16be(marker)
|
2023-01-31 13:49:12 +03:00
|
|
|
if jp2_boxid == 0xFF4F:
|
2023-03-29 12:14:29 +03:00
|
|
|
# SOC has no length
|
2023-01-31 13:49:12 +03:00
|
|
|
continue
|
|
|
|
elif jp2_boxid == 0xFF58:
|
2023-03-29 12:14:29 +03:00
|
|
|
# PLT
|
2023-01-31 13:49:12 +03:00
|
|
|
return
|
|
|
|
elif jp2_boxid == 0xFF93:
|
2023-11-12 23:30:28 +03:00
|
|
|
pytest.fail("SOD without finding PLT first")
|
2023-01-31 13:49:12 +03:00
|
|
|
|
2023-03-29 12:14:29 +03:00
|
|
|
hdr = out.read(2)
|
|
|
|
length = _binary.i16be(hdr)
|
|
|
|
out.seek(length - 2, os.SEEK_CUR)
|
2024-03-24 07:40:11 +03:00
|
|
|
|
2024-03-24 07:47:24 +03:00
|
|
|
|
2024-03-24 07:40:11 +03:00
|
|
|
def test_9bit():
|
|
|
|
with Image.open("Tests/images/9bit.j2k") as im:
|
|
|
|
assert im.mode == "I;16"
|
|
|
|
assert im.size == (128, 128)
|