Update README.md

README.md

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-license: cc-by-nc-sa-4.0
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+---
+license: cc-by-nc-sa-4.0
+---
+
+# Model Description
+This repo contains model weights used in [IQA-PyTorch](https://github.com/chaofengc/IQA-PyTorch), a collection of Image Quality Assessment algorithms implemented in PyTorch.
+
+## Overview
+The weights provided here support various IQA models and metrics, enabling assessment of both full-reference and no-reference image quality evaluation tasks.
+
+## Model Weights
+The weights included in this repository come from two sources:
+1. Models trained and validated by our team
+2. Official weights collected from original model repositories
+
+## Usage
+Please refer to the [IQA-PyTorch](https://github.com/chaofengc/IQA-PyTorch) documentation for detailed instructions on how to use these weights with the corresponding models.
+
+## Disclaimer
+- Part of the weights are trained by us, while others are collected from official repositories
+- While we strive for accuracy, performance is not guaranteed to exactly match original paper results
+- Users should verify model performance for their specific use cases
+- Please respect the original licenses and cite the appropriate papers when using these weights
+
+## Citation
+If you use these weights in your research, please cite our repository and the original papers for the respective models.
+```
+@misc{pyiqa,
+  title={{IQA-PyTorch}: PyTorch Toolbox for Image Quality Assessment},
+  author={Chaofeng Chen and Jiadi Mo},
+  year={2022},
+  howpublished = "[Online]. Available: \url{https://github.com/chaofengc/IQA-PyTorch}"
+}
+```