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Corrected EMF DPI

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This commit is contained in:
Andrew Murray 2024-10-19 20:40:13 +11:00
parent 331e4e7517
commit 55579084cd
2 changed files with 8 additions and 1 deletions
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7
Tests/test_file_wmf.py
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@ -1,5 +1,6 @@
from __future__ import annotations from __future__ import annotations
from io import BytesIO
from pathlib import Path from pathlib import Path
from typing import IO from typing import IO
@ -61,6 +62,12 @@ def test_load_float_dpi() -> None:
with Image.open("Tests/images/drawing.emf") as im: with Image.open("Tests/images/drawing.emf") as im:
assert im.info["dpi"] == 1423.7668161434979 assert im.info["dpi"] == 1423.7668161434979
with open("Tests/images/drawing.emf", "rb") as fp:
data = fp.read()
b = BytesIO(data[:8] + b"\x06\xFA" + data[10:])
with Image.open(b) as im:
assert im.info["dpi"][0] == 2540
def test_load_set_dpi() -> None: def test_load_set_dpi() -> None:
with Image.open("Tests/images/drawing.wmf") as im: with Image.open("Tests/images/drawing.wmf") as im:

2
src/PIL/WmfImagePlugin.py
View File

@ -128,7 +128,7 @@ class WmfStubImageFile(ImageFile.StubImageFile):
size = x1 - x0, y1 - y0 size = x1 - x0, y1 - y0
# calculate dots per inch from bbox and frame # calculate dots per inch from bbox and frame
xdpi = 2540.0 * (x1 - y0) / (frame[2] - frame[0]) xdpi = 2540.0 * (x1 - x0) / (frame[2] - frame[0])
ydpi = 2540.0 * (y1 - y0) / (frame[3] - frame[1]) ydpi = 2540.0 * (y1 - y0) / (frame[3] - frame[1])
self.info["wmf_bbox"] = x0, y0, x1, y1 self.info["wmf_bbox"] = x0, y0, x1, y1