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
+---
+# SentinelKiln Dataset
+
+## About the Dataset
+
+### Dataset Overview
+This dataset contains Sentinel-2 satellite imagery focused on identifying and classifying brick kilns across the Indo-Gangetic Plain and neighboring South Asian countries, including Afghanistan, Pakistan, and Bangladesh.
+
+---
+
+### Key Details
+- **Image Size:** 128 × 128 pixels  
+- **Spatial Resolution:** 10 meters per pixel  
+- **Timeframe:** November 2023 – February 2024  
+- **Geographic Coverage:** Indo-Gangetic Plain, Afghanistan, Pakistan, Bangladesh  
+- **Overlap:** Images have a 30-pixel overlap  
+
+---
+
+### Classes
+- **CFCBK:** Continuous Fixed Chimney Bull’s Trench Kiln  
+- **FCBK:** Fixed Chimney Bull’s Trench Kiln  
+- **Zigzag:** Zigzag Kiln
+
+---
+
+### Annotation Formats
+- **YOLO OBB:** `class_name, x1, y1, x2, y2, x3, y3, x4, y4`  
+- **YOLO AA:** `class_name, x_center, y_center, width, height`  
+- **DOTA Format:** `x1, y1, x2, y2, x3, y3, x4, y4, class_name, difficult`
+
+---
+
+### Dataset Splits
+The dataset is split using a **class-wise stratified approach** to ensure balanced representation:
+
+| Split | Images (.png) | Label files (.txt) | No. of BBoxes | Folder  |
+|-------|---------------|--------------------|--------------|---------|
+| Train | 71,856        | 47,214             |63,787        | `train/`|
+| Val   | 23,952        | 15,738             |21,042        | `val/`  |
+| Test  | 18,492        | 10,278             |12,819        | `test/` |
+
+Each split contains separate folders for annotations and images: `train/`, `val/`, `test/`