ChArUco generation produces incorrect marker locations in the Chessboard about opencv HOT 9 CLOSED

At least in C++, I cannot confirm the issue:

I am also using OpenCV 4.9.0, the board settings are the same as yours.

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cannot confirm
board settings are the same as yours

That can't be. Your image has a different resolution. What constants did you choose to change?

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That can't be. Your image has a different resolution. What constants did you choose to change?

Okay, here is the same image with your image resolution of 200x150:

The other settings are exactly the same as yours.

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The problem has been reproduced. There is the problem with some values of the marginSize parameter.

import cv2 as cv
import sys

arucoDict = cv.aruco.DICT_4X4_1000
boardSize = [7,2]
squareLength = 13
markerLength = 10
dictionary = cv.aruco.getPredefinedDictionary(arucoDict)
board = cv.aruco.CharucoBoard(boardSize, squareLength, markerLength, dictionary)
image = board.generateImage([2*200, 2*150], marginSize=24)
cv.imshow("image", image)
cv.waitKey(0)

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@asmorkalov Is this function producing different results in different machines for the same inputs like observed by @jf99.

Are you seeing this bug only for these inputs and not for the inputs in my repro code?

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@giri-kum the problem has been reproduced with C++ code too.

    aruco::Dictionary dict = aruco::getPredefinedDictionary(aruco::DICT_4X4_1000);
    aruco::CharucoBoard board(Size(7ull, 2ull), 13, 10, dict);
    Mat res;
    board.generateImage(Size(2*200, 2*150), res, 24);
    imshow("res", res);
    waitKey(0);

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@AleksandrPanov I got the same image while reproducing the issue. I am not understanding if this problem is with the createCharucoBoard() function or the generateImage(Size outSize, OutputArray img, int marginSize, int borderBits) function. Both are in aruco_board.cpp file.

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@AleksandrPanov I would like to work on this issue but I am not sure how marginSize affects the results on the charuco board. Can you please help me?

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@Dhanwanth1803, I fixed problem and preparing PR now

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