blob_detect.py 文件源码

def init_undistort():
    #cv2.initUndistortRectifyMap(cameraMatrix, distCoeffs, R, newCameraMatrix, size, m1type[, map1[, map2]]) -> map1, map2
    frame_size=(640,480)
    map1, map2=cv2.initUndistortRectifyMap(mtx, dist, None, newcameramtx, frame_size, cv2.CV_32FC1)
    return map1, map2

# this is a faster undistort_crop that only does remapping. Requires call to init_undistort first to
# to create the map1 and map2