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--- |
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license: apache-2.0 |
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language: |
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- vi |
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- en |
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size_categories: |
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- 10M<n<100M |
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--- |
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# Combined OCR Dataset for Text Recognition |
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## Dataset Description |
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This is a large-scale dataset (~11M training, ~0.9M validation images) for Optical Character Recognition (OCR), aggregated from several common benchmarks and sources (see Sources below). It includes scene text, handwritten text, and synthetic images with corresponding text labels. |
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**Training Code:** [https://github.com/ducto489/lib_ocr](https://github.com/ducto489/lib_ocr) |
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## Dataset Structure |
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``` |
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./data/ |
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├── train/ |
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│ ├── images/*.jpg # Training images |
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│ └── tgt.csv # Training filenames and labels |
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└── val/ |
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├── images/*.jpg # Validation images |
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└── tgt.csv # Validation filenames and labels |
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``` |
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* `tgt.csv`: Comma-separated `image_name,label`. Labels are pre-normalized (see below). |
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## Data Details |
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* **Sources:** Aggregated from [vietocr](https://github.com/pbcquoc/vietocr), [Deep Text Rec. Benchmark](https://github.com/clovaai/deep-text-recognition-benchmark), [Synth90k](https://www.robots.ox.ac.uk/~vgg/data/text/), and [Cinnamon AI Handwritten](https://www.kaggle.com/datasets/hariwh0/cinnamon-ai-handwritten-addresses). |
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* **Normalization:** Text labels have undergone character normalization (e.g., smart quotes to `"` , various dashes to `-`, accented chars simplified like `Ö`->`O`). This simplifies the vocabulary. See the [training repo README](https://github.com/AnyGlow/lib_ocr#data-preprocessing-character-normalization) for the full list. |
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* **Language:** Predominantly English. Vietnamese samples (1.76%) are included but limited. |
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* **Licensing:** Combines multiple sources. **Users must verify compliance with original dataset licenses** before use. |
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## Citation |
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Please cite the original source datasets if you use this data. Citing this aggregation is also appreciated: |
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```bibtex |
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@misc{ducto489_ocr_datasets, |
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author = {Nguyễn Minh Đức}, |
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title = {Combined OCR Dataset}, |
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year = {2024}, # Update year as needed |
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howpublished = {Hugging Face Datasets}, |
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url = {https://huggingface.co/datasets/ducto489/ocr_datasets} |
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} |
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``` |
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## Dataset Curators |
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Aggregated by [ducto489](https://github.com/ducto489/) / Nguyễn Minh Đức. |
