Question: How to find the ideal preprocessor resolution? Any tips and tricks?

[marcsyp]

Hi all -- I have been experimenting with different preprocessor resolutions and find that it has a drastic effect on image results, as well as the associated thresholds. I find it hard to use the preprocessor previews to determine a true indication of the effects any given resolution may have, and this may be a limitation of Gradio or perhaps is simply due to the nature of now the preprocessors interact in a black box way with the models.

Curious, has anyone found any rules of thumb regarding preprocessor resolutions and how they relate to the image dimensions, and what they are good at in certain ranges, where they break down, etc? I am starting to develop an intuition for it, but still struggling to encode any hard and fast rules.

Thanks.