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From all the keypoints extracted by the BFMatcher, let us plot and view 30 of the best common key-points between the left and right images.
We shall do this in 3 steps:
Create a dictionary
draw_paramswhich mentions the color of the lines marking the matches between the images, and
flags=2 which says to show only those 30 key-points and not any other key-points. (You could experiment this by removing flags)
cv2.drawMatches which returns the image drawn with the 30 common key-points between the right and left images
img_left, as per the properties mentioned in
draw_params. We need to pass the
fixColor(img_right), kp1, fixColor(img_left), kp2, matches[:30] as arguments for this method.
Finally, display the image returned by
cv2.drawMatches using matplotlib's
Declare the dictionary
draw_params that mentions the color to be used(
draw_params = dict(matchColor = (255,255,0), # draw matches in yellow color flags = 2)
Here, we have chosen to use yellow color to draw the matches, and used
flags=2 that indicates to show only those 30 key-points which are being drawn now and don't show others for a neater look.
Use the following code to get the image with 30 of the common key-points matched between left and right images.
matched_features_image = cv2.drawMatches(fixColor(img_right), kp1, fixColor(img_left), kp2, matches[:30], None,**draw_params) plt.figure(figsize=(30,20)) plt.imshow(matched_features_image)
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