task_categories:feature-extraction size_categories:100K<n<1M license:mit art region:us
---
license: mit
task_categories:
- feature-extraction
tags:
- art
size_categories:
- 100K<n<1M
---

# character_similarity

This is a dataset used for training models to determine whether two anime images (containing only one person) depict the same character. The dataset includes the following versions:

|  Version  |         Filename        | Characters | Images | Information                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|:---------:|:-----------------------:|:----------:|:------:|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|     v0    |     images_v0.tar.xz    |    2059    | 162116 | Crawled from [zerochan.net](https://www.zerochan.net/), includes images of Arknights, Fate/Grand Order, Genshin Impact, Girls' Frontline, and Azur Lane, as well as over 1500 other game or anime characters. The images are all small preview thumbnails.                                                                                                                                                                                                                                                                      |
|  v0_tiny  |  images_tiny_v0.tar.xz  |     514    |  10036 | The dataset `v0` has been simplified by randomly selecting 1/4 of the anime characters and 1/4 of the images for each character. It is recommended to use this dataset for model training and validation.                                                                                                                                                                                                                                                                                                                       |
|  v0_xtiny |  images_xtiny_v0.tar.xz |     100    |  1814  | `v0_xtiny` dataset is a further simplified version of `v0_tiny`, with only 100 characters retained. This dataset is only **suitable for model validation and experimentation**, and is not recommended for formal training.                                                                                                                                                                                                                                                                                                     |
|     v1    |     images_v1.tar.xz    |    4001    | 292800 | The `v1` dataset is similar to `v0`, crawled from zerochan, but it contains a richer selection of characters and more diverse images of the same character. Each character includes no less than 3 and no more than 200 images.                                                                                                                                                                                                                                                                                                 |
| v1_pruned | images_pruned_v1.tar.xz |    3982    | 241483 | Pruned from `v1` dataset, deleted monochrome and non-solo pictures, and also removed pictures where the character accounted for less than 40% of the entire vision area.                                                                                                                                                                                                                                                                                                                                                        |
|     v2    |     images_v2.tar.gz    |    37886   | 836217 | Images containing only the faces of all characters from [zerochan.net](https://zerochan.net) have been scraped, and the image size is larger than that of the v1 and v0 datasets. However, please note that the v2 dataset may include multi-level nested image paths, such as `a/b/c/xx.jpg` and `a/b/yy.jpg`. In such cases, `xx.jpg` and `yy.jpg` should not be considered the same character. **Two characters from different images are considered the same character only if they are located in exactly the same path.** |