| --- |
| dataset_info: |
| - config_name: photos |
| features: |
| - name: id |
| dtype: string |
| - name: provider |
| dtype: string |
| - name: source_id |
| dtype: string |
| - name: query |
| dtype: string |
| - name: title |
| dtype: string |
| - name: author |
| dtype: string |
| - name: license |
| dtype: string |
| - name: license_url |
| dtype: string |
| - name: source_page |
| dtype: string |
| - name: original_url |
| dtype: string |
| - name: input_path |
| dtype: string |
| - name: target_path |
| dtype: string |
| - name: sha256 |
| dtype: string |
| - name: input |
| dtype: image |
| - name: target |
| dtype: image |
| splits: |
| - name: train |
| num_bytes: 2235579871 |
| num_examples: 82651 |
| - name: test |
| num_bytes: 42450997 |
| num_examples: 1639 |
| download_size: 2123870018 |
| dataset_size: 2278030868 |
| - config_name: scenes |
| features: |
| - name: id |
| dtype: string |
| - name: split |
| dtype: string |
| - name: kind |
| dtype: string |
| - name: caption |
| dtype: string |
| - name: style |
| dtype: string |
| - name: background |
| dtype: string |
| - name: objects |
| dtype: string |
| - name: slots |
| dtype: string |
| - name: sprites |
| dtype: string |
| - name: background_path |
| dtype: string |
| - name: path |
| dtype: string |
| - name: image |
| dtype: image |
| splits: |
| - name: train |
| num_bytes: 37273165 |
| num_examples: 50000 |
| - name: test |
| num_bytes: 1491562 |
| num_examples: 2000 |
| download_size: 27078810 |
| dataset_size: 38764727 |
| - config_name: sprites |
| features: |
| - name: path |
| dtype: string |
| - name: pack |
| dtype: string |
| - name: creator |
| dtype: string |
| - name: license |
| dtype: string |
| - name: source_url |
| dtype: string |
| - name: width |
| dtype: string |
| - name: height |
| dtype: string |
| - name: label |
| dtype: string |
| - name: label_source |
| dtype: string |
| - name: image |
| dtype: image |
| splits: |
| - name: train |
| num_bytes: 1853104 |
| num_examples: 5144 |
| - name: test |
| num_bytes: 191701 |
| num_examples: 541 |
| download_size: 1324918 |
| dataset_size: 2044805 |
| configs: |
| - config_name: photos |
| data_files: |
| - split: train |
| path: photos/train-* |
| - split: test |
| path: photos/test-* |
| - config_name: scenes |
| data_files: |
| - split: train |
| path: scenes/train-* |
| - split: test |
| path: scenes/test-* |
| - config_name: sprites |
| data_files: |
| - split: train |
| path: sprites/train-* |
| - split: test |
| path: sprites/test-* |
| license: |
| - cc0-1.0 |
| - cc-by-2.0 |
| - cc-by-2.5 |
| - cc-by-3.0 |
| - cc-by-4.0 |
| size_categories: |
| - 100K<n<1M |
| task_categories: |
| - text-to-image |
| pretty_name: pixl-data |
| tags: |
| - pixel-art |
| - sprites |
| --- |
| |
| # pixl-data |
|
|
| Training data for **pixl**, a small text-to-pixel-art model trained from scratch. |
|
|
| | Config | Rows | What it holds | |
| |---|---|---| |
| | `photos` | ~84k | Photo pairs: a 256×256 photo (`input`), a 32×32, 24-colour version of it (`target`), and a caption (`query`) | |
| | `sprites` | ~5.7k | CC0 game sprites (`image`) with a short label (`label`) | |
| | `scenes` | 52k | 32×32 scenes built from the sprites (`image`), with a caption written from the placement (`caption`) | |
|
|
| ## Load |
|
|
| ```python |
| from datasets import load_dataset |
| |
| photos = load_dataset("ocdbytes/pixl-data", "photos") # {"train": ..., "test": ...} |
| sprites = load_dataset("ocdbytes/pixl-data", "sprites") |
| scenes = load_dataset("ocdbytes/pixl-data", "scenes") |
| |
| train = load_dataset("ocdbytes/pixl-data", "photos", split="train") # one split only |
| ``` |
|
|
| ## Splits |
|
|
| | Config | train | test | Kept together in one split | |
| |---|---|---|---| |
| | `photos` | ~82.7k | ~1.6k (2% of source photos) | All crops of one source photo (same `sha256`) | |
| | `sprites` | ~5.1k | ~540 (10% of groups) | The colour variants of one tile, and the frames of one animation | |
| | `scenes` | 50,000 | 2,000 | Set by the generator: test scenes use test sprites, or object pairs never seen in train scenes | |
|
|
| Near-copies never appear in both splits, so test scores are not inflated by images the model has already seen. A group is in `test` when the first 8 hex digits of the SHA-256 of its key, as a fraction of 16⁸, are below 0.02 (photos) or 0.1 (sprites). The split is fixed: new data never moves existing rows. |
|
|
| ## photos |
|
|
| | Source | Caption | |
| |---|---| |
| | [Open Images V7](https://storage.googleapis.com/openimages/web/index.html) | A box label or a relationship between two boxes drawn by people, e.g. "dog", "man riding horse", "wooden table". The photo is cropped around the box. | |
| | [Wikimedia Commons](https://commons.wikimedia.org/), [Openverse](https://openverse.org/) | The search query that found the photo, e.g. "arcade cabinet". | |
|
|
| Photos were filtered before upload. A photo was removed when: |
|
|
| - [CLIP](https://huggingface.co/openai/clip-vit-base-patch32) matched it more closely to prompts for nudity or graphic content (gore, dead bodies, injuries) than to neutral prompts; |
| - it came from a web search and CLIP found it does not show its query; |
| - it is CC BY but has no author to credit, or its author field is an email address. |
|
|
| Every photo was changed: |
|
|
| 1. Cropped to a square. |
| 2. Resized to 256×256: `input`. |
| 3. Resized to 32×32 and reduced to 24 colours: `target`. |
|
|
| | Column | Meaning | |
| |---|---| |
| | `id` | Pair id | |
| | `provider` | `openimages`, `wikimedia` or `openverse:<provider>` | |
| | `source_id` | Id of the photo at its source | |
| | `query` | Caption | |
| | `title`, `author` | From the photo's source page | |
| | `license`, `license_url` | Licence of the original photo | |
| | `source_page`, `original_url` | Where the original photo is | |
| | `input_path`, `target_path` | File paths in the original folder layout | |
| | `sha256` | SHA-256 of the downloaded original | |
| | `input`, `target` | The two images | |
|
|
| ## sprites |
|
|
| Sprites from CC0 packs by [Kenney](https://kenney.nl/assets) (1-Bit Pack, Cursor Pixel Pack, Pico-8 City, Tiny Battle, Tiny Farm, Tiny Town), [ansimuz](https://ansimuz.itch.io/sunny-land-pixel-game-art) (Sunny Land), [GrafxKid](https://grafxkid.itch.io/mini-pixel-pack-3) (Mini Pixel Pack 3) and [Buch](https://opengameart.org/content/a-platformer-in-the-forest) (A Platformer in the Forest). `label_source` says where each label comes from: checked by eye (`claude-visual`), a file name (`filename`) or a sprite-sheet atlas (`atlas`). |
|
|
| | Column | Meaning | |
| |---|---| |
| | `path` | File path in the original pack layout | |
| | `pack`, `creator`, `source_url` | Which pack the sprite comes from | |
| | `license` | CC0 1.0 | |
| | `width`, `height` | Size in pixels | |
| | `label`, `label_source` | Label and where it comes from | |
| | `image` | The sprite (PNG, with transparency) | |
|
|
| ## scenes |
|
|
| Synthetic 32×32 scenes, each made from one sprite style: a background tile repeated in every 16 px slot (8 px for Pico-8 City) and one or two objects, each centred in its own slot. Sprites are never scaled. The caption is written from the placement, so it is always right: "a green pine tree left of a wooden barrel on grass", "a yellow bus at the top right on pavement". |
|
|
| | Kind (`kind`) | Split | Scenes | Objects from | |
| |---|---|---|---| |
| | `train` | train | 50,000 | Train-split sprites | |
| | `new sprites` | test | 1,000 | Test-split sprites only | |
| | `new pair` | test | 1,000 | Train-split sprites in label pairs that never appear together in train scenes | |
|
|
| | Column | Meaning | |
| |---|---| |
| | `caption` | The scene's caption | |
| | `kind` | See above | |
| | `style` | Sprite pack (or 1-Bit Pack colour family) the scene is made from | |
| | `background`, `background_path` | Background tile label and path in the `sprites` config; empty for a transparent scene | |
| | `objects`, `sprites`, `slots` | Each object's label, path and `row,column` slot, `\|`-separated | |
| | `image` | The scene (PNG, transparent where there is no background) | |
|
|
| ## Licences |
|
|
| Every row has its own licence in `license` (and `license_url` for photos): |
|
|
| - **Sprites:** CC0 1.0. |
| - **Scenes:** CC0 1.0, as they are made only from the sprites. |
| - **Photos:** CC0, public domain, or CC BY 1.0–4.0. All Open Images photos are listed as CC BY 2.0. |
| - **Open Images annotations** (the boxes and labels behind the crops and captions): CC BY 4.0, by Google. |
|
|
| To reuse a CC BY photo, credit it with the row's `author`, `title`, `source_page` and `license`, and say that it was changed (cropped, resized, colours reduced). |
|
|
| Google lists Open Images photos as CC BY 2.0 but [does not guarantee](https://storage.googleapis.com/openimages/web/factsfigures_v7.html) each licence. Wikimedia and Openverse licences come from their providers' metadata. Check a row's source page before relying on its licence. |
|
|
| ## Known issues |
|
|
| - Web captions are still somewhat noisy: in a sample of 30 web photos that passed the CLIP check, 4 did not show their query. |
| - The nudity and graphic-content filter is automatic and can miss photos. Please report any you find. |
| - Many photos show real people. Some show brand logos or photographers' watermarks. |
|
|
