How to get the std of SPAQ data

[Niax23]

Hi author,

Thank you for the remarkable work and for sharing this model. I'm currently using it for some custom training and testing, and I’ve encountered an aspect I’d like to clarify.

I noticed that in the data you provided, each image in the SPAQ dataset has a standard deviation (std) label. However, I couldn't find this label, nor the information needed to calculate it (such as individual score distributions per image), in the original SPAQ dataset.

Could you please clarify the following:

How was the standard deviation for each image in the SPAQ dataset calculated?
Is it possible to share the scoring data or the method used to derive this standard deviation?
Your guidance would greatly enhance my understanding and ability to work with this dataset. Thank you again for your hard work and your contributions to the open-source community!

Best regards