Merge branch 4.x

doc/tutorials/calib3d/camera_calibration_pattern/camera_calibration_pattern.markdown

@@ -11,7 +11,7 @@ Create calibration pattern {#tutorial_camera_calibration_pattern}
 | Compatibility | OpenCV >= 3.0 |
 
 
-The goal of this tutorial is to learn how to create calibration pattern.
+The goal of this tutorial is to learn how to create a calibration pattern.
 
 You can find a chessboard pattern in https://github.com/opencv/opencv/blob/5.x/doc/pattern.png
 
@@ -47,14 +47,14 @@ create a ChAruco board pattern in charuco_board.svg with 7 rows, 5 columns, squa
 
         python gen_pattern.py -o charuco_board.svg --rows 7 --columns 5 -T charuco_board --square_size 30 --marker_size 15 -f DICT_5X5_100.json.gz
 
-If you want to change unit use -u option (mm inches, px, m)
+If you want to change the measurement units, use the -u option (e.g. mm, inches, px, m)
 
-If you want to change page size use -w and -h options
+If you want to change the page size, use the -w (width) and -h (height) options
 
-If you want to use your own dictionary for ChAruco board your should write name of file with your dictionary. For example
+If you want to use your own dictionary for the ChAruco board, specify the name of your dictionary file. For example
 
         python gen_pattern.py -o charuco_board.svg --rows 7 --columns 5 -T charuco_board -f my_dictionary.json
 
-You can generate your dictionary in my_dictionary.json file with number of markers 30 and markers size 5 bits by using opencv/samples/cpp/aruco_dict_utils.cpp.
+You can generate your dictionary in the file my_dictionary.json with 30 markers and a marker size of 5 bits using the utility provided in opencv/samples/cpp/aruco_dict_utils.cpp.
 
         bin/example_cpp_aruco_dict_utils.exe my_dict.json -nMarkers=30 -markerSize=5