安装

imageio官网：https://imageio.readthedocs.io/en/stable/

安装：pip install imageio

读写操作

1. imread

imageio.imread(uri)

• uri：路径

从指定路径读取一张图片
Reads an image from the specified file. Returns a numpy array
Note that the image data is returned as-is, and may not always have a dtype of uint8 (and thus may differ from what e.g. PIL returns).

返回属性为np.array、uint8、255、HWC、RGB

使用很简单

from imageio import imread
img1 = imread('color.jpg')

2. imwrite

imageio.imwrite(uri, im)

• uri：要存储的路径
• im：保存的图片 The image data. Must be HxW, HxWx3 or HxWx4.

保存图片到特定路径uri
Write an image to the specified file.

类似于imread的镜像操作，读入的是什么类型，保存时也是什么类型，即np.array、uint8、255、HWC、RGB

使用也很简单

from imageio import imread, imwrite
img1 = imread('color.jpg')
imwrite("./color.jpg", img1)