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findChessboardCorners and findCirclesGrid don't work on large image?

I'm using an industrial camera of large resolution(54723648) to take images of my calibration pattern. Strangely, I found out that findChessboardCorners and findCirclesGrid fuctions only work when I resize the image to a smaller resolution, rows and columns both divided by 3 for example. If I use the 54723648 image directly, findChessboardCorners function just stucks there forever, while findCirclesGrid returns false(found no pattern). I don't know why. Can anyone help me?

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updated 2020-10-13 01:32:43 -0500

berak gravatar image

findChessboardCorners and findCirclesGrid don't work on large image?

I'm using an industrial camera of large resolution(54723648) resolution(5472x3648) to take images of my calibration pattern. Strangely, I found out that findChessboardCorners and findCirclesGrid fuctions only work when I resize the image to a smaller resolution, rows and columns both divided by 3 for example. If I use the 54723648 5472x3648 image directly, findChessboardCorners function just stucks there forever, while findCirclesGrid returns false(found no pattern). I don't know why. Can anyone help me?