Update README.md

README.md

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----
-license: cc-by-4.0
----
+---
+license: cc-by-4.0
+task_categories:
+  - image-classification
+tags:
+  - pathology
+  - histopathology
+  - prostate-cancer
+  - gleason-grading
+  - foundation-models
+  - benchmark
+size_categories:
+  - 1K<n<10K
+---
+
+# PANDA-PLUS-Bench
+
+A benchmark dataset for evaluating WSI-specific feature collapse in pathology foundation models.
+
+## Dataset Description
+
+PANDA-PLUS-Bench contains expert-annotated prostate biopsy patches from 9 whole slide images (9 unique patients) with pixel-level Gleason pattern annotations.
+
+### Dataset Summary
+
+- **Patches**: ~2,770 per augmentation condition
+- **Resolution**: 224×224 pixels at 20× magnification
+- **Classes**: Benign (0), GP3 (1), GP4 (2), GP5 (3)
+- **Slides**: 9 (one per patient)
+- **Augmentations**: 8 conditions
+
+### Augmentation Conditions
+
+| Split | Description |
+|-------|-------------|
+| baseline | ImageNet normalization only |
+| color_jitter | Brightness, contrast, saturation, hue |
+| grayscale | Complete color removal |
+| gaussian_noise | Additive noise (σ=0.05) |
+| heavy_geometric | Rotation ±180°, flips |
+| combined_aggressive | All augmentations combined |
+| macenko_normalization | Stain normalization |
+| hed_stain_augmentation | H/E channel perturbation |
+
+## Usage
+```python
+from datasets import load_dataset
+
+# Load baseline patches
+dataset = load_dataset("dellacortelab/PANDA-PLUS-Bench", split="baseline")
+
+# Access a sample
+sample = dataset[0]
+image = sample['image']      # PIL Image
+label = sample['label']      # 0-3
+slide_id = sample['slide_id']  # Slide identifier
+```
+
+## Evaluation
+
+See our [Colab notebook](https://colab.research.google.com/github/dellacortelab/PANDA-PLUS-Bench/blob/main/PANDA_PLUS_Bench_Evaluation.ipynb) for standardized evaluation.
+
+## Citation
+```bibtex
+@article{ebbert2025pandaplusbench,
+  title={PANDA-PLUS-Bench: A Benchmark for Evaluating WSI-Specific Feature Collapse},
+  author={Ebbert, Joshua and Della Corte, Dennis},
+  year={2025}
+}
+```
+
+## License
+
+CC-BY-4.0