python opencv棋盘格角点检测代码
时间: 2024-05-17 10:10:57 浏览: 226
opencv 角点检测
下面是Python OpenCV中棋盘格角点检测的示例代码:
```
import numpy as np
import cv2
# Load the calibration image
img = cv2.imread('calibration.jpg')
# Convert the image to grayscale
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
# Define the size of the chessboard
size = (9,6)
# Find the chessboard corners
ret, corners = cv2.findChessboardCorners(gray, size, None)
# Draw the corners on the image
cv2.drawChessboardCorners(img, size, corners, ret)
# Show the image with the corners drawn on it
cv2.imshow('img',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
```
在这个示例中,我们首先加载了一张标定图像。然后将该图像转换为灰度图像。接下来,我们定义了棋盘格的大小,并使用OpenCV的`findChessboardCorners`函数来查找棋盘格的角点。如果找到了所有的角点,函数返回`True`,并将角点保存在`corners`变量中。最后,我们使用`drawChessboardCorners`函数在图像上绘制角点,并将其显示出来。
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