Datasets:
Tasks:
Image Classification
Modalities:
Image
Formats:
imagefolder
Languages:
English
Size:
100K - 1M
Tags:
OCR
Handwriting
Character Recognition
Grayscale Images
ASCII Labels
Optical Character Recognition
License:
Louis Rädisch
commited on
Commit
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d096766
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Parent(s):
059fed7
Update README.md
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README.md
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@@ -10,6 +10,28 @@ The AlphaNum dataset, curated by Louis Rädisch, is a comprehensive collection o
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Images derived from the MNIST dataset have been color inverted to maintain consistency with the rest of the data. Vision Transformer Models have been fine-tuned to harmonize the data from diverse sources, enhancing the dataset's accuracy. For instance, the 'A-Z handwritten alphabets' dataset originally did not differentiate between upper and lower case letters, an issue rectified in this new compilation.
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## ASCII Table
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| ASCII Value | Character |
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|-------------|-----------|
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| 124 | \| |
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| 125 | } |
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| 126 | ~ |
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| 999 | null |
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## Sources:
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1) [Handwriting Characters Database](https://github.com/sueiras/handwritting_characters_database)
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2) [MNIST](https://huggingface.co/datasets/mnist)
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3) [AZ Handwritten Alphabets in CSV format](https://www.kaggle.com/datasets/sachinpatel21/az-handwritten-alphabets-in-csv-format)
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The dataset files have been scaled down to 24x24 pixels and recolored from white-on-black to black-on-white to ensure uniformity.
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## Dataset Structure
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### Data Instances
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A single data instance in this dataset comprises an image of a handwritten character or digit, accompanied by its corresponding ASCII label.
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### Data Fields
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1) 'image': This field contains the image of the handwritten character or digit.
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2) 'label': This field provides the ASCII label corresponding to the character or digit in the image.
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### Data Splits
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The dataset is bifurcated into training and test subsets to facilitate the building and evaluation of models.
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## Dataset Use
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The AlphaNum dataset is apt for tasks associated with text recognition, document processing, and machine learning. It is particularly beneficial for constructing, fine-tuning, and enhancing OCR models.
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Images derived from the MNIST dataset have been color inverted to maintain consistency with the rest of the data. Vision Transformer Models have been fine-tuned to harmonize the data from diverse sources, enhancing the dataset's accuracy. For instance, the 'A-Z handwritten alphabets' dataset originally did not differentiate between upper and lower case letters, an issue rectified in this new compilation.
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## Sources:
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1) [Handwriting Characters Database](https://github.com/sueiras/handwritting_characters_database)
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2) [MNIST](https://huggingface.co/datasets/mnist)
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3) [AZ Handwritten Alphabets in CSV format](https://www.kaggle.com/datasets/sachinpatel21/az-handwritten-alphabets-in-csv-format)
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The dataset files have been scaled down to 24x24 pixels and recolored from white-on-black to black-on-white to ensure uniformity.
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## Dataset Structure
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### Data Instances
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A single data instance in this dataset comprises an image of a handwritten character or digit, accompanied by its corresponding ASCII label.
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### Data Fields
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1) 'image': This field contains the image of the handwritten character or digit.
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2) 'label': This field provides the ASCII label corresponding to the character or digit in the image.
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### Data Splits
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The dataset is bifurcated into training and test subsets to facilitate the building and evaluation of models.
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## Dataset Use
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The AlphaNum dataset is apt for tasks associated with text recognition, document processing, and machine learning. It is particularly beneficial for constructing, fine-tuning, and enhancing OCR models.
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## ASCII Table
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| ASCII Value | Character |
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|-------------|-----------|
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128 |
| 124 | \| |
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| 125 | } |
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| 126 | ~ |
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| 999 | null |
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