我用Matlab写了一个.png图像。当我看到size(imageName)的大小时，得到480 720 3。现在，我需要在Python中获取它的调色板。我尝试了以下方法：
from PIL import Image
Image.open('path\\to\\image.png').getpalette()
当我打印输出时，得到None。我使用imwrite在Matlab中创建了图像。怎么了我应该以其他方式在Matlab中创建.png吗？有人可以帮忙吗？
答案 0 :(得分：1)
您正在使用不需要调色板的“ RGB”图像，因此getpalette（）返回None。
了解更多：https://pillow.readthedocs.io/en/4.1.x/reference/Image.html
关于索引图像（带有调色板）：http://www.drububu.com/tutorial/image-types.html
示例代码：
from PIL import Image
im = Image.open('image.png')
print(im.getpalette())
im2 = im.convert("P", palette=Image.ADAPTIVE, colors=256)
print(im2.getpalette())
im2.save('test.png')
输出：
None
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