2、OpenCV Python 图像属性获取

__author__ = "WSX"
import cv2 as cv
import numpy as np

image = cv.imread("1.JPG")  #获取图

image_height = image.shape[0]
image_width = image.shape[1]
image_channel = image.shape[2]

# for i in range(image_height):   #访问 每一个像素
#     for j in range(image_width):
#         for k in range(image_channel):
#             temp = image[i , j , k]
#             image[i , j , k] = 255 - temp

New_image = cv.bitwise_not(image)    #像素取反，速度很快（依靠c代码）


cv.namedWindow("New_image" , cv.WINDOW_AUTOSIZE)
cv.imshow("New_image" , New_image)
cv.waitKey(0)