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<p>这与2013年9月11日nkint的问题类似。链接如下:
<a href="https://stackoverflow.com/questions/18742679/how-to-get-all-undistorted-image-with-opencv">how to get all undistorted image with opencv</a>
我是一个新用户,所以我没有足够的声誉/影响力对OP发表评论</p>
<P>我曾尝试用Python代替C++来模拟代码安德鲁麦克勒,其中一些基于Joh博世的响应的小改动。结果如下:</p>
<pre><code> #!/usr/bin/env python
import cv2
import numpy as np
def loadUndistortedImage(fileName):
# load image
image = cv2.imread(fileName)
#print(image)
# set distortion coeff and intrinsic camera matrix (focal length, centerpoint offset, x-y skew)
cameraMatrix = np.array([[894.96803896,0,470.38713516],[0,901.32629374,922.41232898], [0,0,1]])
distCoeffs = np.array([[-0.340671222,0.110426603,-.000867987573,0.000189669273,-0.0160049526]])
# setup enlargement and offset for new image
y_shift = 60 #experiment with
x_shift = 70 #experiment with
imageShape = image.shape #image.size
print(imageShape)
imageSize = (int(imageShape[0])+2*y_shift, int(imageShape[1])+2*x_shift, 3)
print(imageSize)
# create a new camera matrix with the principal point offest according to the offset above
newCameraMatrix, validPixROI = cv2.getOptimalNewCameraMatrix(cameraMatrix, distCoeffs, imageSize,
1)
#newCameraMatrix = cv2.getDefaultNewCameraMatrix(cameraMatrix, imageSize, True) # imageSize, True
# create undistortion maps
R = np.array([[1,0,0],[0,1,0],[0,0,1]])
map1, map2 = cv2.initUndistortRectifyMap(cameraMatrix, distCoeffs, R, newCameraMatrix, imageSize,
cv2.CV_16SC2)
# remap
outputImage = cv2.remap(image, map1, map2, INTER_LINEAR)
#save output image as file with "FIX" appened to name - only works with .jpg files at the moment
index = filename.find('.jpg')
fixed_filename = filename[:index] +'_undistorted'+fileName[index:]
cv2.imwrite(fixed_filename, outputImage)
cv2.imshow('fix_img',outputImage)
cv2.waitKey(0)
return
#Undistort the images, then save the restored images
loadUndistortedImage('./calib/WIN_20200626_11_29_16_Pro.jpg')
</code></pre>
<p>这对我来说似乎很好,但在尝试使用cv2.GetOptimizeNewCameraMatrix或cv2.getDefaultNewCameraMatrix和cv2.InitUnderTortyMap时出现了问题。我一直被告知“该参数正好包含2个参数(3个给定)”,尽管我在此处输入了文档中指定的参数:
<a href="https://docs.opencv.org/2.4/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html" rel="nofollow noreferrer">https://docs.opencv.org/2.4/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html</a>
<a href="https://docs.opencv.org/2.4/modules/imgproc/doc/geometric_transformations.html" rel="nofollow noreferrer">https://docs.opencv.org/2.4/modules/imgproc/doc/geometric_transformations.html</a></p>
<p>如果删除可选参数,我可以删除“…getDefault…”中的错误,但我不希望这样做</p>
<p>堆栈跟踪:</p>
<pre><code>Traceback (most recent call last):
File ".\main.py", line 46, in <module>
loadUndistortedImage('./<image file name>.jpg')
File ".\main.py", line 27, in loadUndistortedImage
newCameraMatrix, validPixROI = cv2.getOptimalNewCameraMatrix(cameraMatrix, distCoeffs, imageSize, 1)
TypeError: function takes exactly 2 arguments (3 given)
</code></pre>