4.x
Merge remote-tracking branch 'upstream/3.4' into merge-3.4
rename samples/{python2 -> python}
python: 'cv2.' -> 'cv.' via 'import cv2 as cv'
Define execfile, file, long, raw_input, xrange for Python 3
samples: update Python launcher (winpack)
Update aruco_detect_board_charuco.py
samples: fix python samples compatibility with demo.py
Merge pull request #20934 from SinM9:spectrogram_samples
fix pylint warnings
Reworked calibrate.py
Update python samples
Fixed Typo Closes #15148
Fix spelling typos
build: updates for winpack dldt
pylint: eliminate warnings
Merge pull request #14107 from adityak2920:aditya
Merge pull request #17683 from ivashmak:homography
prevent index error in find_obj sample
fix samples
Minor update in grabcut.py
Merge pull request #20564 from AleksandrPanov:update_kalman_sample
fix samples 3.4
Merge pull request #23108 from crackwitz:issue-23107
Misc. ./samples typos
Added Aruco-based QR code detection method to python sample.
Update samples
Added python branch to stitching tutorial.
add GraphCutSeamFinder
Merge pull request #25959 from arvind-iyer:4.x
Merge pull request #24116 from chaebkimm/update-samples-python-tst_scene_render
Removed deprecated 'clock' import.
Merge pull request #23531 from kaingwade:orbbec_python_sample