相关疑难解决方法(0)

当我运行我的python代码

import numpy as np
import cv2
import matplotlib.pyplot as plt

img1 = cv2.imread('/home/shar/home.jpg',0)          # queryImage
img2 = cv2.imread('/home/shar/home2.jpg',0) # trainImage

# Initiate SIFT detector

sift = cv2.xfeatures2d.SIFT_create()
# find the keypoints and descriptors with SIFT
kp1, des1 = sift.detectAndCompute(img1,None)
kp2, des2 = sift.detectAndCompute(img2,None)

# BFMatcher with default params
bf = cv2.BFMatcher()
matches = bf.knnMatch(des1,des2, k=2)

# Apply ratio test
good = []
for m,n in matches:
    if m.distance < 0.75*n.distance:
        good.append([m])

# cv2.drawMatchesKnn expects list of lists as matches. …

import numpy as np

import cv2
from matplotlib import pyplot as plt

img = cv2.imread('1.jpg',0)

orb = cv2.ORB()

kp = orb.detect(img,None)

kp, des = orb.compute(img, kp)


img2 = cv2.drawKeypoints(img,kp,color=(0,255,0), flags=0)
plt.imshow(img2),plt.show()

在这里,我在我的Windows操作系统中安装了numpy和opencv.但我找不到添加cv2模块的正确方法.

我使用pip安装了matplotlib lib,但是当我运行此代码时,它给了我这个错误:

shar@shar-Lenovo-G50-30 ~ $ python3 opencv.py
Traceback (most recent call last):
  File "opencv.py", line 3, in <module>
    from matplotlib import pyplot as plt
ImportError: cannot import name 'pyplot'

我的代码是:

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

img1 = cv2.imread('/home/shar/home.jpg',0)  # queryImage
img2 = cv2.imread('/home/shar/home2.jpg',0) # trainImage

# Initiate SIFT detector
orb = cv2.ORB()

# find the keypoints and descriptors with SIFT
kp1, des1 = orb.detectAndCompute(img1,None)
kp2, des2 = orb.detectAndCompute(img2,None)
# create BFMatcher object
bf …