我正在使用OpenCv进行GoPro摄像机校准。但是findChessboardCorners在我的许多图像上都返回false,而Matlab却没有。我尝试对图像进行二进制化以帮助OpenCv,但仅在某些情况下有帮助。这是示例:
这里是代码:
CHECKERBOARD = (6,9)
img = cv2.imread('1.JPG')
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
ret, corners = cv2.findChessboardCorners(gray, CHECKERBOARD, cv2.CALIB_CB_ADAPTIVE_THRESH+cv2.CALIB_CB_FAST_CHECK+cv2.CALIB_CB_NORMALIZE_IMAGE)
print(ret)
我尝试了不同的标志。 OpenCv失败,而Matlab失败。有提示吗?
调整图像大小似乎可行。
代码示例:
import cv2
import numpy as np
CHECKERBOARD = (6,9)
img = cv2.imread("Q2l11.jpg")
img = cv2.resize(img,(int(400),int(400)))
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
ret, corners = cv2.findChessboardCorners(gray, CHECKERBOARD, cv2.CALIB_CB_ADAPTIVE_THRESH+cv2.CALIB_CB_FAST_CHECK+cv2.CALIB_CB_NORMALIZE_IMAGE)
print(corners)
#print(ret)
corners = np.int0(corners)
for i in corners:
x,y = i.ravel()
cv2.circle(img,(x,y),3,(0,0,255),-1)
cv2.imshow('Corners',img)
cv2.waitKey(0)