Python中读取,显示,保存图片的方法

opencv：


import cv2 as cv
# load 
img = cv.imread(imagepath)
# shape=(height, width, channel)
h,w,c = img.shape
# show
cv.imshow('window_title', img)
# save
cv.imwrite(savepath, img)

 cv.imwrite用法举例

img_file = "E:/pic"
if not os.path.exists(img_file):
	os.mkdir(img_file)
cv.imwrite(img_file + "/" + Img_name, frame)