Update README.md

README.md

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----
-license: cc-by-nc-4.0
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+---
+license: cc-by-nc-4.0
+task_categories:
+- image-classification
+language:
+- en
+tags:
+- art
+- wikiart
+- computer-vision
+pretty_name: wikiart-21-styles-optimized
+size_categories:
+- 10K<n<100K
+---
+
+# WikiArt 21 Styles (Optimized & Curated)
+
+This dataset is a processed version of the WikiArt collection, specifically curated for training the **ArtEra** style classifier. It contains over 76,000 images organized into 21 distinct artistic movements.
+
+## 📂 Content
+The data is provided as a single `.zip` archive for efficient download and storage. 
+- **Format:** Images organized in subfolders by style.
+- **Processing:** Images were filtered to remove noise and ensure label consistency across 21 classes.
+
+## 🎨 Styles Included
+Abstract Expressionism, Art Nouveau Modern, Baroque, Color Field Painting, Cubism, Early Renaissance, Expressionism, Fauvism, High Renaissance, Impressionism, Mannerism Late Renaissance, Minimalism, Naive Art Primitivism, Northern Renaissance, Pop Art, Post Impressionism, Realism, Rococo, Romanticism, Symbolism, Ukiyo-e.
+
+## 🚀 How to use
+You can download the `dataset_art_styles.zip` file directly from this repository and extract it to recreate the `dataset_opt` directory structure used during the ArtEra training phases.
+
+## ⚖️ License & Attribution
+This dataset is for **non-commercial, educational, and research purposes only**, in accordance with the original WikiArt terms of use.