Multi-exposure support?

[khodabakhshih]

Hi,
Great work and thanks for sharing it!
I’d like to ask whether UltraFusion supports multi-exposure fusion (e.g., 3 or 5 exposures), or is it designed specifically for two exposures only?
Thanks in advance!

[cecret3350]

Thank you for your recognition.
Unfortunately, UltraFusion only supports two exposures at this time. You could use any two images from the exposure bracket as input.
However, I believe it is easy to adapt UltraFusion to more exposures. You can retrain the model with suitable data: taking the mid-exposure as the reference, and aligning the rest inputs to it.
Considering our training code is still under preparation, you can refer to the training code of DiffBIR (our training code is based on it) and try to implement a 3 or 5 exposures version.

[khodabakhshih]

Many thanks for your prompt and comprehensive response.