ca_ur5/calibonelib.py

55 lines
1.7 KiB
Python

# Set the path to the images captured by the left and right cameras
import cv2
import numpy as np
import tqdm as tqdm
pathL = "/home/ros/Bureau/ca_ur5/1.jpg"
pathR = "/home/ros/Bureau/ca_ur5/2.jpg"
# Termination criteria for refining the detected corners
criteria = (cv2.TERM_CRITERIA_EPS + cv2.TERM_CRITERIA_MAX_ITER, 30, 0.001)
objp = np.zeros((8*5,3), np.float32)
objp[:,:2] = np.mgrid[0:8,0:5].T.reshape(-1,2)
img_ptsL = []
img_ptsR = []
obj_pts = []
for i in tqdm(range(1,12)):
imgL = cv2.imread(pathL+"img%d.png"%i)
imgR = cv2.imread(pathR+"img%d.png"%i)
imgL_gray = cv2.imread(pathL+"img%d.png"%i,0)
imgR_gray = cv2.imread(pathR+"img%d.png"%i,0)
outputL = imgL.copy()
outputR = imgR.copy()
retR, cornersR = cv2.findChessboardCorners(outputR,(8,5),None)
retL, cornersL = cv2.findChessboardCorners(outputL,(8,5),None)
if retR and retL:
obj_pts.append(objp)
cv2.cornerSubPix(imgR_gray,cornersR,(11,11),(-1,-1),criteria)
cv2.cornerSubPix(imgL_gray,cornersL,(11,11),(-1,-1),criteria)
cv2.drawChessboardCorners(outputR,(8,5),cornersR,retR)
cv2.drawChessboardCorners(outputL,(8,5),cornersL,retL)
cv2.imshow('cornersR',outputR)
cv2.imshow('cornersL',outputL)
cv2.waitKey(0)
img_ptsL.append(cornersL)
img_ptsR.append(cornersR)
# Calibrating left camera
retL, mtxL, distL, rvecsL, tvecsL = cv2.calibrateCamera(obj_pts,img_ptsL,imgL_gray.shape[::-1],None,None)
hL,wL= imgL_gray.shape[:2]
new_mtxL, roiL= cv2.getOptimalNewCameraMatrix(mtxL,distL,(wL,hL),1,(wL,hL))
# Calibrating right camera
retR, mtxR, distR, rvecsR, tvecsR = cv2.calibrateCamera(obj_pts,img_ptsR,imgR_gray.shape[::-1],None,None)
hR,wR= imgR_gray.shape[:2]
new_mtxR, roiR= cv2.getOptimalNewCameraMatrix(mtxR,distR,(wR,hR),1,(wR,hR))