Datasets:
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
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 | 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, Openverse | The search query that found the photo, e.g. "arcade cabinet". |
Photos were filtered before upload. A photo was removed when:
- CLIP 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:
- Cropped to a square.
- Resized to 256×256:
input. - 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 (1-Bit Pack, Cursor Pixel Pack, Pico-8 City, Tiny Battle, Tiny Farm, Tiny Town), ansimuz (Sunny Land), GrafxKid (Mini Pixel Pack 3) and Buch (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 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.