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Corrected border position

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This commit is contained in:
Andrew Murray 2021-06-29 21:24:41 +10:00
parent 28330c2f9d
commit 3e5ceb6d67
2 changed files with 8 additions and 2 deletions
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8
Tests/test_imageops.py
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@ -161,7 +161,13 @@ def test_expand_palette():
im_expanded = ImageOps.expand(im, 10, (255, 0, 0)) im_expanded = ImageOps.expand(im, 10, (255, 0, 0))
px = im_expanded.convert("RGB").load() px = im_expanded.convert("RGB").load()
assert px[0, 0] == (255, 0, 0) for b in range(10):
for x in range(im_expanded.width):
assert px[x, b] == (255, 0, 0)
assert px[x, im_expanded.height - 1 - b] == (255, 0, 0)
for y in range(im_expanded.height):
assert px[b, x] == (255, 0, 0)
assert px[b, im_expanded.width - 1 - b] == (255, 0, 0)
im_cropped = im_expanded.crop( im_cropped = im_expanded.crop(
(10, 10, im_expanded.width - 10, im_expanded.height - 10) (10, 10, im_expanded.width - 10, im_expanded.height - 10)

2
src/PIL/ImageOps.py
View File

@ -399,7 +399,7 @@ def expand(image, border=0, fill=0):
out.paste(image, (left, top)) out.paste(image, (left, top))
draw = ImageDraw.Draw(out) draw = ImageDraw.Draw(out)
draw.rectangle((0, 0, width, height), outline=color, width=border) draw.rectangle((0, 0, width - 1, height - 1), outline=color, width=border)
else: else:
out = Image.new(image.mode, (width, height), color) out = Image.new(image.mode, (width, height), color)
out.paste(image, (left, top)) out.paste(image, (left, top))