| --- |
| license: cc-by-4.0 |
| language: |
| - cop |
| task_categories: |
| - image-to-text |
| tags: |
| - coptic |
| - handwritten-text-recognition |
| - HTR |
| - historical-documents |
| - line-segmentation |
| pretty_name: SCAM – Sahidic Coptic Ancient Manuscripts |
| --- |
| |
| # SCAM – Sahidic Coptic Ancient Manuscripts |
|
|
| **Project page:** [scam.silviacascianelli.com](https://scam.silviacascianelli.com) |
|
|
| SCAM is a dataset of handwritten Sahidic Coptic manuscript pages, with manually annotated text-line polygons and HTR transcriptions. It is split into two subsets: |
|
|
| | Subset | Source | Pages | Lines | |
| |--------|--------|-------|-------| |
| | **SCAM-A** | Biblioteca Apostolica Vaticana | 24 | 1,445 | |
| | **SCAM-B** | Biblioteca Nazionale di Napoli | 15 | 1,795 | |
| | **Full** | Combined | 39 | 3,240 | |
|
|
| Each split (train / eval / test) is encoded in the annotation XML files. |
|
|
| --- |
|
|
| ## Repository contents |
|
|
| ``` |
| annotations/ |
| page_annotations_RO.xml # SCAM-A line polygons + transcriptions (CVAT 1.1 format) |
| page_annotations_NA.xml # SCAM-B line polygons + transcriptions (CVAT 1.1 format) |
| transcriptions/ |
| scam_a/ *.rtf # Page-level transcriptions for SCAM-A |
| scam_b/ *.rtf # Page-level transcriptions for SCAM-B |
| ``` |
|
|
| The XML annotation files are in [CVAT Image 1.1](https://opencv.github.io/cvat/docs/manual/advanced/xml_format/) format. |
| Each `<image>` element contains `<polygon>` elements, one per text line, with: |
| - `points` – polygon vertices (x,y coordinates) within the page image |
| - `<attribute name="Content">` – the HTR transcription of that line |
|
|
| --- |
|
|
| ## ⚠️ Images not included |
|
|
| Due to intellectual property restrictions, the original manuscript page images are **not distributed** in this repository. They can be obtained as described below. |
|
|
| ### SCAM-A — Biblioteca Apostolica Vaticana |
|
|
| Images can be found in the **Vatican Apostolic Library Digital Repository**: |
|
|
| 🔗 [https://digi.vatlib.it/mss/Borg.copt](https://digi.vatlib.it/mss/Borg.copt) |
|
|
| Please inquire with the library regarding the terms under which the images may be used. |
|
|
| The specific fascicles used in SCAM-A are: |
| - `MSS_Borg.copt.109.cass.XXV.fasc.120` |
| - `MSS_Borg.copt.109.cass.XXIX.fasc.159` |
|
|
| The image filenames in the annotations map directly to the folio identifiers used in that collection (e.g. `Borg.copt.109.cass.XXIX.fasc.159_0003_fa_0001r`). |
|
|
| ### SCAM-B — Biblioteca Nazionale di Napoli |
|
|
| Images from the **National Library of Naples** must be requested directly from the library: |
|
|
| 🔗 [https://www.bnnonline.it/it/1/home](https://www.bnnonline.it/it/1/home) |
|
|
| --- |
|
|
| ## Further support |
|
|
| For questions about the dataset, annotation methodology, or to request additional information, please contact the authors — their email addresses are provided in the accompanying paper. |
|
|
