Add cropped checkbox dataset (train/valid/test)

README.md

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+---
+license: mit
+task_categories:
+- image-classification
+language:
+- en
+---
+
+## Source Reference
+
+This dataset was sourced and prepared from the original dataset hosted on
+Roboflow:
+
+🔗 https://universe.roboflow.com/checkbox-detection-ztyeq/checkbox-kwtcz-qkbid/dataset/7
+
+# Checkbox Cropped Binary Dataset
+
+This dataset contains cropped checkbox regions extracted from document images
+for binary classification: **checked** vs **unchecked**.
+
+## Structure
+
+train/
+checked/
+unchecked/
+valid/
+checked/
+unchecked/
+test/
+checked/
+unchecked/
+
+
+## Description
+
+- Images are cropped checkbox regions from scanned documents
+- Each image belongs to one of two classes:
+  - `checked`
+  - `unchecked`
+- Intended for document AI and form understanding tasks
+
+## Usage
+
+The dataset can be loaded using the Hugging Face Datasets library
+or accessed directly as image files.
+
+## Notes
+
+This dataset is used in conjunction with a fine-tuned PaliGemma-based
+checkbox classification model.