Python3 PIL (Pillow) draw.pieslice 坏弧

Question

我正在使用 PIL 绘制一个简单的切片

image = Image.new("RGBA", (256, 128), "#DDD")
draw = ImageDraw.Draw(image, image.mode)
draw.pieslice((0, 0 , 64, 64), 180, 270, fill="white)

del draw

image.save("file.png", "PNG")

如您所见，弧线并不完美。我如何使用 PIL 制作完美的弧线？

Answer 1

在更大的图像上绘制，然后缩小:

N=4
image = Image.new("RGBA", (256*N, 128*N), "#DDD")
draw = ImageDraw.Draw(image, image.mode)
draw.pieslice((0, 0 , 64*N, 64*N), 180, 270, fill="white")
del draw
image = image.resize((256,128)) # using user3479125's correction
image.save("file2.png", "PNG")