Question

这是功能匹配的代码：

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

MIN_MATCH_COUNT = 10
img1 = cv2.imread('/home/shrikrishna/Dektop/ImageProcessing/Datasets
/cars128x128/car_0001.ppm',0)
# queryImage
img2 = cv2.imread('/home/shrikrishna/Dektop/ImageProcessing/Datasets
/cars128x128/car_0002.ppm',0) # trainImage

# Initiate SIFT(here ORB) detector
orb = cv2.ORB_create()

# find the keypoints and descriptors with SIFT
kp1, des1 = orb.detectAndCompute(img1,None)
kp2, des2 = orb.detectAndCompute(img2,None)
FLANN_INDEX_KDTREE = 0
index_params = dict(algorithm = FLANN_INDEX_KDTREE, trees = 5)
search_params = dict(checks = 50)
flann = cv2.FlannBasedMatcher(index_params, search_params)
matches = flann.knnMatch(des1,des2,k=2)

# store all the good matches as per Lowe's ratio test.
good = []
for m,n in matches:
    if m.distance < 0.7*n.distance:
        good.append(m)

if len(good)>MIN_MATCH_COUNT:
    src_pts = np.float32([ kp1[m.queryIdx].pt for m in good 
    ]).reshape(-1,1,2)
    dst_pts = np.float32([ kp2[m.trainIdx].pt for m in good 
    ]).reshape(-1,1,2)
    M, mask = cv2.findHomography(src_pts, dst_pts, cv2.RANSAC,5.0)
    matchesMask = mask.ravel().tolist()
    h,w = img1.shape
    pts = np.float32([ [0,0],[0,h-1],[w-1,h-1],[w-1,0] ]).reshape(-1,1,2)
    dst = cv2.perspectiveTransform(pts,M)

    img2 = cv2.polylines(img2,[np.int32(dst)],True,255,3, cv2.LINE_AA)
else:
    print "Not enough matches are found - %d/%d" % 
    (len(good),MIN_MATCH_COUNT)
    matchesMask = None

draw_params = dict(matchColor = (0,255,0), #draw mathes for green color
                   singlePointColor = None,
                   matchesMask = matchesMask,#draw the inliers
                   flags = 2)
img3 = cv2.drawMatches(img1,kp1,img2,kp2,good,None,**draw_params)
plt.imshow(img3, 'gray'),plt.show()

执行上述代码时，我收到以下错误： -

追踪（最近的呼叫最后）：
文件“feature_matching_homography_five.py”，第48行，in plt.imshow（img3，'grey'），plt.show（）文件“/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py”，第2961行，in imshow imlim = imlim，resample = resample，url = url，** kwargs）在imshow im.set_data（X）文件“/usr/lib/python2.7/dist-packages/ matplotlib / image.py“，第434行，在set_data中引发TypeError（“图像数据无法转换为float”）TypeError：图像数据无法转换为float

类型错误：图片数据无法转换为浮动

0 个答案: