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Merge pull request #20657 from zchrissirhcz:upd-doc-for-py_fast

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Alexander Alekhin 2021-09-06 11:31:35 +00:00
commit 0097a8d097
1 changed files with 4 additions and 4 deletions
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8
doc/py_tutorials/py_feature2d/py_fast/py_fast.markdown
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@ -98,7 +98,7 @@ import numpy as np
import cv2 as cv
from matplotlib import pyplot as plt
img = cv.imread('simple.jpg',0)
img = cv.imread('blox.jpg',0) # `<opencv_root>/samples/data/blox.jpg`
# Initiate FAST object with default values
fast = cv.FastFeatureDetector_create()
@ -113,17 +113,17 @@ print( "nonmaxSuppression:{}".format(fast.getNonmaxSuppression()) )
print( "neighborhood: {}".format(fast.getType()) )
print( "Total Keypoints with nonmaxSuppression: {}".format(len(kp)) )
cv.imwrite('fast_true.png',img2)
cv.imwrite('fast_true.png', img2)
# Disable nonmaxSuppression
fast.setNonmaxSuppression(0)
kp = fast.detect(img,None)
kp = fast.detect(img, None)
print( "Total Keypoints without nonmaxSuppression: {}".format(len(kp)) )
img3 = cv.drawKeypoints(img, kp, None, color=(255,0,0))
cv.imwrite('fast_false.png',img3)
cv.imwrite('fast_false.png', img3)
@endcode
See the results. First image shows FAST with nonmaxSuppression and second one without
nonmaxSuppression: