tangjunjun

摘要： import matplotlib.pyplot as pltimport cv2 as cva=cv.imread('learn.jpg')cv.imshow('learn',a)fig=plt.figure(1) #新建绘图窗口b=fig.add_subplot(221) #选择画布第一个b.imshow(a,cmap=plt.cm.gray) #读图cv.imshow('lear... 阅读全文