Aruco calibration board

[c1p81]

where i can download the pdf checkerboard for calibration?
thanks
L

[RivoLink]

You can find it in jpg here: calibration-board.jpg
Or do you really need it in pdf format ?

[c1p81]

thank you for reply
i'm using opencv and aruco tags on laptop to estimate the distance
In calibration i need to input the size of checkerboard to have the correct parameters in distorsion and translation
In your android app (calibration) i cant find the way to configure the size of checkerboard ...with a pdf i'm sure to print the right size
i'm wrong?
thanks
L

[RivoLink]

You can print this image in A4 format and use my configurations
CameraCalibrator::markerLength = 0.032f
CameraCalibrator::markerDistance = 0.003f

Or print it in your own format and manually measure these values in meters according to this documentation
https://docs.opencv.org/4.x/de/d05/classcv_1_1aruco_1_1GridBoard.html#a8f4db0a7faad559753887e9fdd43b74c

Thanks
Rivo Link