Reference-based Upscaling

[MentalGear]

This is an impressive and much-needed project for establishing comparable metrics across solutions, which addresses a critical gap in the field.

To further enhance its rigor and applicability, it would be valuable to include reference-based upscaling networks. Such networks are essential for ensuring authentic upscaling, as they better reflect real-world where entities' appearance must be guaranteed.

Notable examples of reference-based upscaling methods include:

AMSA(/~https://github.com/Zj-BinXia/AMSA)
DATSR(/~https://github.com/caojiezhang/DATSR)
MASA-SR
IntantRestore

Incorporating these approaches could significantly strengthen the project's ability to provide authentic outputs and evaluations.