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原始图
角点检测
points = cv2.goodFeaturesToTrack(gray, 100, 0.01, 10) points = np.int0(points).reshape(-1,2) for point in points: x, y = point.ravel() cv2.circle(img, (x, y), 10, (0, 255, 0), -1)
连线
cv2.line(img, (0, y1), (1000, y1), (0, 255, 0), thickness=3, lineType=8) cv2.line(img, (0, y2), (1000, y2), (0, 255, 0), thickness=3, lineType=8)
完整代码
"""
@author: qq群686070107
"""
import cv2
import numpy as np
img=cv2.imread("1.jpg")
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
points = cv2.goodFeaturesToTrack(gray, 100, 0.01, 10)
points = np.int0(points).reshape(-1,2)
for point in points:
x, y = point.ravel()
cv2.circle(img, (x, y), 10, (0, 255, 0), -1)
y1 = min(points[:,1])
y2 = max(points[:,1])
## small and big enough
cv2.line(img, (0, y1), (1000, y1), (0, 255, 0), thickness=3, lineType=8)
cv2.line(img, (0, y2), (1000, y2), (0, 255, 0), thickness=3, lineType=8)
cv2.imshow("img", img)
cv2.waitKey(0)
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