用opencv进行图像处理-之用matplotlib显示

import numpy as np
import cv2 as cv
from matplotlib import pyplot as plt

img = cv.imread('dqiocaoxfwu31.png')
img = cv.cvtColor(img, cv.COLOR_BGR2RGB)
plt.imshow(img), plt.title('orig')
plt.xticks([]), plt.yticks([])
plt.show()

注释:

  由于opencv打开后图片通道顺序是BGR存储的,所以需要先转换成RGB顺序,才能用

  matplotlib正常显示