"TypeError: integer argument expected, got float" in PIL

Question

我这里有一个程序，我在这里遇到了一个关于堆栈溢出的问题。它应该调整图像的对比度，但我收到以下错误：

Traceback (most recent call last):
  File "<string>", line 420, in run_nodebug
  File "<module1>", line 20, in <module>
  File "<module1>", line 16, in change_contrast
  File "C:\EduPython\App\lib\site-packages\PIL\Image.py", line 1512, in putpixel
    return self.im.putpixel(xy, value)
TypeError: integer argument expected, got float

post 太旧了，所以我认为写它的人不会看到我的请求，所以我 post 在这里。这是代码：

from PIL import Image

def change_contrast(img, level):
    def truncate(v):
        return 0 if v < 0 else 255 if v > 255 else v


    img = Image.open("C:\Users\omar\Desktop\Site\Images\obama.png")
    img.load()

    factor = (259 * (level+255)) / (255 * (259-level))
    for x in range(img.size[0]):
        for y in range(img.size[1]):
            color = img.getpixel((x, y))
            new_color = tuple(truncate(factor * (c-128) + 128) for c in color)
            img.putpixel((x, y), new_color)

    return img

result = change_contrast('test_image1.jpg', 128)
result.save('test_image1_output.jpg')
print('done')

Answer 1

嗯，truncate 是什么？

试着在你说 truncate 的地方说 int。

"TypeError: integer argument expected, got float" in PIL

"TypeError: integer argument expected, got float" in PIL

python

python-imaging-library

python-3.x