Datasets:
File size: 5,278 Bytes
ff692f0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | ---
license: apache-2.0
task_categories:
- image-classification
language:
- am
- ti
tags:
- ocr
- handwriting-recognition
- ethiopic
- geez
- amharic
- character-recognition
pretty_name: Geez Handwritten Character Dataset
size_categories:
- 10K<n<100K
---
# Amharic (Geʽez) Handwritten Character Dataset (32×32)
## Dataset Details
### Description
This dataset contains handwritten images of Amharic (Geʽez script) characters intended for character-level Optical Character Recognition (OCR) and handwriting recognition research.
| Property | Value |
|----------|-------|
| **Total Images** | 13,000+ |
| **Classes** | 287 distinct characters |
| **Image Size** | 32 × 32 pixels |
| **Format** | Grayscale |
| **Distribution** | Balanced across all classes |
The dataset is designed to support **CPU-efficient character classifiers** and low-resource language research, particularly for Ethiopic scripts.
- **Curated by:** Yared
- **Language:** Amharic (Geʽez / Ethiopic script)
- **License:** Apache License 2.0
---
## Uses
### Direct Use
- Training and evaluating handwritten character classifiers
- OCR pipelines that operate at character level
- Research on low-resource and underrepresented scripts
- Benchmarking lightweight CNN models on constrained hardware (CPU, low RAM)
### Out-of-Scope Use
- Writer identification or biometric analysis
- Forensic handwriting attribution
- Recognition of printed or typeset Amharic text
- Word-level or sentence-level language modeling without additional segmentation
---
## Dataset Structure
### Data Fields
Each sample contains:
| Field | Description |
|-------|-------------|
| `image` | 32×32 grayscale image of a single handwritten character |
| `label` | Integer class index in range `[0, 286]` |
### Directory Layout
```
dataset/
├── train/
│ ├── 0/
│ ├── 1/
│ ├── ...
│ └── 286/
└── test/
├── 0/
├── 1/
├── ...
└── n/
```
Folder names correspond directly to character class IDs.
---
## Dataset Creation
### Curation Rationale
Publicly available datasets for handwritten Ethiopic scripts are scarce, especially at character level. This dataset was created to provide a **standardized, balanced, and lightweight benchmark** for Amharic handwritten character recognition, enabling both academic research and practical OCR system development under limited computational resources.
### Source Data
#### Data Collection and Processing
1. Handwritten characters were collected on paper forms
2. Pages were scanned or photographed
3. Individual characters were extracted and cropped
4. Images were converted to grayscale
5. Resized to a fixed resolution of 32×32 pixels
6. Manually organized into class-specific directories
No synthetic data generation was used.
#### Source Data Producers
The handwritten samples were produced by human contributors mainly in an academic native environment though a portion of participants are also tigrinya native. No personally identifiable information is associated with the samples.
---
## Annotations
### Annotation Process
Annotations are implicit and directory-based. Each image inherits its label from the directory name representing a specific Geʽez character class. This mapping serves as the ground-truth annotation.
### Annotators
Annotation and class assignment were performed by the dataset creator during dataset organization and validation.
### Personal and Sensitive Information
This dataset does **not** contain:
- Names or identifiers
- Demographic metadata
- Sensitive personal information
The dataset consists solely of isolated handwritten character images.
---
## Bias, Risks, and Limitations
| Consideration | Description |
|---------------|-------------|
| **Demographic bias** | Handwriting styles may reflect a limited demographic group due to localized data collection from less than 500 Dire Dawa Universty Students only |
| **Style coverage** | Extreme handwriting variations (e.g., elderly or non-academic writers) may be underrepresented |
| **Scope limitation** | Character-level only; does not capture word or sentence context and due to the 500 participants some unique paterns might not be collected |
### Recommendations
- Fine-tune models with additional local handwriting samples for deployment
- Combine this dataset with document-level segmentation pipelines when building full OCR systems
- Apply data augmentation to improve robustness to handwriting variability
---
## Citation
If you use this dataset in your work, please cite it as follows:
### BibTeX
```bibtex
@dataset{amharic_handwritten_characters_2024,
author = {Yared},
title = {Amharic (Geʽez) Handwritten Character Dataset},
year = {2024},
publisher = {Hugging Face},
license = {Apache-2.0},
url = {https://huggingface.co/datasets/Yaredoffice/geez-characters}
}
```
### APA
Yared. (2024). *Amharic (Geʽez) Handwritten Character Dataset*. Hugging Face. https://huggingface.co/datasets/Yaredoffice/geez-characters
---
## Dataset Card Authors
**Yared**
## Contact
For questions or contributions, please reach out via the dataset's Hugging Face discussion tab or the author's GitHub profile. |