Python “如何修复”;TypeError:函数只接受2个参数(给定3个)";在cv2.1中,校准MERA方法
我对下面的代码有问题。编译后,出现消息“ret、mtx、dist、rvecs、tvecs=cv2.calibleCamera(objectpoints、framepoints、fsize、None、None TypeError:函数只接受2个参数(给定3个)”。我想从我的网络摄像头实时拍摄图像Python “如何修复”;TypeError:函数只接受2个参数(给定3个)";在cv2.1中,校准MERA方法,python,opencv,camera-calibration,Python,Opencv,Camera Calibration,我对下面的代码有问题。编译后,出现消息“ret、mtx、dist、rvecs、tvecs=cv2.calibleCamera(objectpoints、framepoints、fsize、None、None TypeError:函数只接受2个参数(给定3个)”。我想从我的网络摄像头实时拍摄图像 import numpy as np import cv2 objp = np.zeros((9 * 6, 3), np.float32) objp[:, :2] = np.mgrid[0:6, 0:
import numpy as np
import cv2
objp = np.zeros((9 * 6, 3), np.float32)
objp[:, :2] = np.mgrid[0:6, 0:9].T.reshape(-1, 2)
size = (9, 6)
objectpoints = []
framepoints = []
cv2.namedWindow("video preview")
vc = cv2.VideoCapture(0)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (1080, 720))
if vc.isOpened():
rval, frame = vc.read()
else:
rval = False
while rval:
cv2.imshow("preview", frame)
rval, frame = vc.read()
ret, corners = cv2.findChessboardCorners(frame, size, None)
cv2.drawChessboardCorners(frame, (9, 6), corners, ret)
print(ret)
print(frame.shape[::-1])
fsize = frame.shape[::-1]
if ret == True:
criteria = (cv2.TERM_CRITERIA_EPS + cv2.TERM_CRITERIA_MAX_ITER, 30, 0.001)
objectpoints.append(objp)
corners2 = cv2.cornerSubPix(frame, corners, (11, 11), (-1, -1), criteria)
framepoints.append(corners2)
ret, mtx, dist, rvecs, tvecs = cv2.calibrateCamera(objectpoints, framepoints, fsize, None, None)
print('ret:', ret)
print('mtx:', mtx)
print('dist:', dist)
print('rvecs:', rvecs)
print('tvecs:', tvecs)
out.write(frame)
key = cv2.waitKey(20)
if key == 27:
break
vc.release()
out.release()
cv2.destroyWindow("preview")`
我遇到了同样的问题,并发现了问题: 将fsize作为img size参数传递,该参数需要一个2元素元组(宽度、高度) 但您从RGB img读取fsize,这会导致3个颜色通道的宽度、高度(3)。(如果打印(fsize),您将看到) 因此,您传递了一个3元组,其中需要一个2元组,这将导致错误 将您的行更改为:
fsize=frame.shape[:-1]
致:
fsize=frame.shape[1::-1]
它应该会起作用
还可以通过以下方式将帧转换为灰度:
frame=cv.cvt颜色(frame,cv.COLOR\u bgr2灰色)
使用chessboardcornerDetector哪一种可能更好(在本例中是这样使用的)
我希望这能有所帮助。您还没有显示代码。请发布所有(相关)代码和完整的stacktrace。支票或支票。