python - 无法在 Pillow 中粘贴调整大小的图像

Question

我在 Pillow 模块中粘贴调整大小的图像时遇到问题。我想将水印调整到具有图像宽度的 1/3 宽度的任何大小的所有图像并保持比例纵横比 65:10，粘贴调整大小的图像后出现此错误：

(480, 360)
(160, 25)
Traceback (most recent call last):
  File "C:/Users/Przemek/PycharmProjects/cwiczenia/venv/project watermark.py", line 15, in <module>
    image.paste(watermarkResized, (0,0))
  File "C:\Users\Przemek\PycharmProjects\cwiczenia\venv\lib\site-packages\PIL\Image.py", line 1504, in paste
    raise ValueError("cannot determine region size; use 4-item box")
ValueError: cannot determine region size; use 4-item box

这是代码：

import os
from PIL import Image
directory = "PATH TO THE DIRECTORY"
watermark = Image.open("PATH TO THE WATERMARK")

for filename in os.listdir(directory):
    image = Image.open("PATH TO THE DIRECTORY"+filename)
    imageWidth, imageHeight = (image.size)
    watermarkResized = watermark.resize(((int(round((imageWidth/3),0)), int(round(((imageWidth/3) /6.5),0))))).copy

    print(image.size)
    print(watermarkResized.size)


    image.paste(watermarkResized, (0,0))
    image.save("PATH TO THE DIRECTORY"+filename+".png")

标签： pythonpython-imaging-library

Answer 1

我通过简单地从图像对象中删除 .copy 函数来解决了这个问题。我现在有另一个问题。如何将具有透明背景的 .png 图像粘贴到图像中？