Datasets:
johnlockejrr
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README.md
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---
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license: mit
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---
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license: mit
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language:
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- ar
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task_categories:
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- image-to-text
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pretty_name: KHATT_v1.0
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dataset_info:
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features:
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- name: image
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dtype: image
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- name: text
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dtype: string
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splits:
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- name: train
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num_examples: 4672
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- name: validation
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num_examples: 963
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- name: test
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num_examples: 1038
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dataset_size: 220M
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tags:
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- atr
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- htr
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- ocr
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- historical
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- handwritten
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- arabic
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---
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# Samaritan v1 - line level
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## Table of Contents
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- [KHATT_v1.0 - line level](#KHATT_v1.0_dataset)
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- [Table of Contents](#table-of-contents)
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- [Dataset Description](#dataset-description)
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- [Languages](#languages)
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- [Dataset Structure](#dataset-structure)
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- [Data Instances](#data-instances)
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- [Data Fields](#data-fields)
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## Dataset Description
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- **Homepage:** [johnlockejrr's personal project](https://huggingface.co/datasets/johnlockejrr/KHATT_v1.0_dataset)
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## Dataset Summary
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KHATT (KFUPM Handwritten Arabic TexT) database is a database of unconstrained handwritten Arabic Text written by 1000 different writers. This research database’s development was undertaken by a research group from KFUPM, Dhahran, S audi Arabia headed by Professor Sabri Mahmoud in collaboration with Professor Fink from TU-Dortmund, Germany and Dr. Märgner from TU-Braunschweig, Germany.
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The database includes 2000 similar-text paragraph images and 2000 unique-text paragraph images and their extracted text line images. The images are accompanied with manually verified ground-truth and Latin representation of the ground-truth. The database can be used in various handwriting recognition related researches like, but not limited to, text recognition, and writer identification. Interested readers can refer to the paper [1], and [2] for more details on the database. The version 1.0 of the KHATT database is available free of charge (for academic and research purposes) to the researchers.
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Database Overview:
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- Forms written by 1000 different writers.
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- Scanned at different resolutions (200, 300, and 600 DPIs).
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- Writers are from different countries, gender, age groups, handedness and education level.
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- Natural writings with unrestricted writing styles.
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- 2000 unique paragraph images and their segmented line images (source text from different topics like arts, education, health, nature, technology).
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- 2000 paragraph images containing similar text, each covering all Arabic characters and shapes and their segmented line images.
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- Free paragraphs written by writers on any topic of their choice.
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- Paragraph and line images are supplied with manually verified ground-truths.
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- The database divided into three disjoint sets viz. training (70%), validation (15%), and testing (15%).
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- Promote research in areas like writer identification, line segmentation, and binarization and noise removal techniques beside handwritten text recognition.
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### Languages
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All the documents in the dataset are written in Arabic.
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## Dataset Structure
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### Data Instances
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```
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{
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'image': <PIL.JpegImagePlugin.JpegImageFile image mode=RGB size=4300x128 at 0x1A800E8E190,
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'text': 'رفاظ قيار يؤل نب فوؤر هبحصب ماغرض رفظم حون بهذ'
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}
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```
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### Data Fields
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- `image`: a PIL.Image.Image object containing the image. Note that when accessing the image column (using dataset[0]["image"]), the image file is automatically decoded. Decoding of a large number of image files might take a significant amount of time. Thus it is important to first query the sample index before the "image" column, i.e. dataset[0]["image"] should always be preferred over dataset["image"][0].
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- `text`: the label transcription of the image. The text was intentionally flipped from RTL to LTR because of PyLaia library limitation to LTR.
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