Created
September 5, 2019 08:29
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| # Need to draw only good matches, so create a mask | |
| matches_mask = [[0, 0] for i in range(len(flann_matches))] | |
| # ratio test as per Lowe's paper | |
| good = [] | |
| for index in range(len(flann_matches)): | |
| if len(flann_matches[index]) == 2: | |
| m, n = flann_matches[index] | |
| if m.distance < 0.8 * n.distance: # 0.8 is threshold of ratio testing | |
| matches_mask[index] = [1, 0] | |
| good.append(flann_matches[index]) | |
| draw_params = dict( | |
| singlePointColor=(255, 0, 0), | |
| matchesMask=matches_mask, | |
| flags=2) | |
| img3 = cv2.drawMatchesKnn(image_train, kp_logo, image_query, kp_img, flann_matches, None, **draw_params) |
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