why the scale_factor of autoencoder used in MSCOCO configs is 0.2301?

[moonbaby9]

Thanks for sharing your wonderful work! I find the scale_factor of autoencoder used in MSCOCO configs is 0.2301, but the defaulted in LDM is 0.180125. Why is the difference?

[baofff]

It is calculated based on the standard variance on MS COCO

[moonbaby9]

Does the scale factor have a big impact on image quality？