Надеюсь, это поможет.Загрузите изображения для калибровки с здесь .
import numpy as np
import cv2
import cv2.aruco as aruco
import glob
import math
markerLength = 0.25
cap = cv2.VideoCapture(0)
criteria = (cv2.TERM_CRITERIA_EPS + cv2.TERM_CRITERIA_MAX_ITER, 30, 0.001)
objp = np.zeros((6*7,3), np.float32)
objp[:,:2] = np.mgrid[0:7,0:6].T.reshape(-1,2)
objpoints = []
imgpoints = []
images = glob.glob('calib_images/*.jpg')
for fname in images:
img = cv2.imread(fname)
gray = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
ret, corners = cv2.findChessboardCorners(gray, (7,6),None)
if ret == True:
objpoints.append(objp)
corners2 = cv2.cornerSubPix(gray,corners,(11,11),(-1,-1),criteria)
imgpoints.append(corners2)
img = cv2.drawChessboardCorners(img, (7,6), corners2,ret)
ret, mtx, dist, rvecs, tvecs = cv2.calibrateCamera(objpoints, imgpoints, gray.shape[::-1],None,None)
calibrationFile = "calibrationFileName.xml"
calibrationParams = cv2.FileStorage(calibrationFile, cv2.FILE_STORAGE_READ)
camera_matrix = calibrationParams.getNode("cameraMatrix").mat()
dist_coeffs = calibrationParams.getNode("distCoeffs").mat()
count = 1
while(True):
ret, frame = cap.read()
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
aruco_dict = aruco.Dictionary_get(aruco.DICT_6X6_250)
arucoParameters = aruco.DetectorParameters_create()
aruco_list = {}
corners, ids, rejectedImgPoints = aruco.detectMarkers(gray, aruco_dict, parameters=arucoParameters)
if np.all(ids != None):
if len(corners):
for k in range(len(corners)):
temp_1 = corners[k]
temp_1 = temp_1[0]
temp_2 = ids[k]
temp_2 = temp_2[0]
aruco_list[temp_2] = temp_1
key_list = aruco_list.keys()
font = cv2.FONT_HERSHEY_SIMPLEX
for key in key_list:
dict_entry = aruco_list[key]
centre = dict_entry[0] + dict_entry[1] + dict_entry[2] + dict_entry[3]
centre[:] = [int(x / 4) for x in centre]
orient_centre = centre + [0.0,5.0]
centre = tuple(centre)
orient_centre = tuple((dict_entry[0]+dict_entry[1])/2)
cv2.circle(frame,centre,1,(0,0,255),8)
display = aruco.drawDetectedMarkers(frame, corners)
display = np.array(display)
else:
display = frame
cv2.imshow('Display',display)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()