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SIFT
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| import cv2 | |
| import matplotlib.pyplot as plt | |
| %matplotlib inline | |
| # read images | |
| img1 = cv2.imread('eiffel_2.jpeg') | |
| img2 = cv2.imread('eiffel_1.jpg') | |
| img1 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) | |
| img2 = cv2.cvtColor(img2, cv2.COLOR_BGR2GRAY) | |
| #sift | |
| sift = cv2.xfeatures2d.SIFT_create() | |
| keypoints_1, descriptors_1 = sift.detectAndCompute(img1,None) | |
| keypoints_2, descriptors_2 = sift.detectAndCompute(img2,None) | |
| #feature matching | |
| bf = cv2.BFMatcher(cv2.NORM_L1, crossCheck=True) | |
| matches = bf.match(descriptors_1,descriptors_2) | |
| matches = sorted(matches, key = lambda x:x.distance) | |
| img3 = cv2.drawMatches(img1, keypoints_1, img2, keypoints_2, matches[:50], img2, flags=2) | |
| plt.imshow(img3),plt.show() |
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| import cv2 | |
| import matplotlib.pyplot as plt | |
| %matplotlib inline | |
| #reading image | |
| img1 = cv2.imread('eiffel_2.jpeg') | |
| gray1 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) | |
| #keypoints | |
| sift = cv2.xfeatures2d.SIFT_create() | |
| keypoints_1, descriptors_1 = sift.detectAndCompute(img1,None) | |
| img_1 = cv2.drawKeypoints(gray1,keypoints_1,img1) | |
| plt.imshow(img_1) |
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| import cv2 | |
| import matplotlib.pyplot as plt | |
| %matplotlib inline | |
| # read images | |
| img1 = cv2.imread('eiffel_2.jpeg') | |
| img2 = cv2.imread('eiffel_1.jpg') | |
| img1 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) | |
| img2 = cv2.cvtColor(img2, cv2.COLOR_BGR2GRAY) | |
| #sift | |
| sift = cv2.xfeatures2d.SIFT_create() | |
| keypoints_1, descriptors_1 = sift.detectAndCompute(img1,None) | |
| keypoints_2, descriptors_2 = sift.detectAndCompute(img2,None) | |
| len(keypoints_1), len(keypoints_2) |
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| import cv2 | |
| import matplotlib.pyplot as plt | |
| %matplotlib inline | |
| # read images | |
| img1 = cv2.imread('eiffel_2.jpeg') | |
| img2 = cv2.imread('eiffel_1.jpg') | |
| img1 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) | |
| img2 = cv2.cvtColor(img2, cv2.COLOR_BGR2GRAY) | |
| figure, ax = plt.subplots(1, 2, figsize=(16, 8)) | |
| ax[0].imshow(img1, cmap='gray') | |
| ax[1].imshow(img2, cmap='gray') |
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