template and white template are incorrectly selected.

The operation steps for film calibration are as follows:

1.Place the matching film under the camera’s field of view, adjust the camera and camera parameters,

so that the black dots on the film can be clearly identified in the image display area.

2.Check the calibration option. Then the [Calibration] button on the left will become a valid button, and

the [Proportion Calculation] parameter on the right will become invalid.

3.Click the [Calibration] button, and the calibration process pop-up window will pop up.

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