Something wrong with extrinsic calibration with latest vision lib?

[jasonhu5]

Problem

lib-dt-computer-vision==0.1.8 (installed in the dt-gui-tools image specified in the "Env" section below) works fine for extrinsic calibration on daffy.

But lib-dt-computer-vision==0.2.1 (latest on Pypi) seems to have problem in get_ground_corners_and_error. It seems to always have Board detected, overall error: 0.2024m, and the right image is incorrect.

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Env

Shell version: v6.0.17
Commands version: e3b05f268bb9854b5207114b27bdbf280a661e48

Docker image version:

• dt-gui-tools:v4.1.1-amd64, cf8915856748