图像特征--harris角点检测
基本原理
cv2.cornerHarris()
- img: 数据类型为 float32 的入图像
- blockSize: 角点检测中指定区域的大小
- ksize: Sobel求导中使用的窗口大小
- k: 取值参数为 [0,04,0.06]
import cv2 import numpy as np img = cv2.imread('test_1.jpg') print ('img.shape:',img.shape) gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) # gray = np.float32(gray) dst = cv2.cornerHarris(gray, 2, 3, 0.04) print ('dst.shape:',dst.shape)
效果:
img.shape: (800, 1200, 3) dst.shape: (800, 1200)
img[dst>0.01*dst.max()]=[0,0,255] cv2.imshow('dst',img) cv2.waitKey(0) cv2.destroyAllWindows()
效果:
来源:https://www.cnblogs.com/SCCQ/p/12299472.html