diffusiondb-pixelart.py

# Original Copyright 2022  Jay Wang, Evan Montoya, David Munechika, Alex Yang, Ben Hoover, Polo Chau
# MIT License
"""Loading script for DiffusionDB."""

import re
import numpy as np
import pandas as pd

from json import load, dump
from os.path import join, basename
from huggingface_hub import hf_hub_url

import datasets

# Find for instance the citation on arxiv or on the dataset repo/website
_CITATION = """\
@article{wangDiffusionDBLargescalePrompt2022,
  title = {{{DiffusionDB}}: {{A}} Large-Scale Prompt Gallery Dataset for Text-to-Image Generative Models},
  author = {Wang, Zijie J. and Montoya, Evan and Munechika, David and Yang, Haoyang and Hoover, Benjamin and Chau, Duen Horng},
  year = {2022},
  journal = {arXiv:2210.14896 [cs]},
  url = {https://arxiv.org/abs/2210.14896}
}
"""

# You can copy an official description
_DESCRIPTION = """
DiffusionDB is the first large-scale text-to-image prompt dataset. It contains 2
million images generated by Stable Diffusion using prompts and hyperparameters
specified by real users. The unprecedented scale and diversity of this
human-actuated dataset provide exciting research opportunities in understanding
the interplay between prompts and generative models, detecting deepfakes, and
designing human-AI interaction tools to help users more easily use these models.
"""

_HOMEPAGE = "https://poloclub.github.io/diffusiondb"
_LICENSE = "CC0 1.0"
_VERSION = datasets.Version("0.9.1")

# Programmatically generate the URLs for different parts
# hf_hub_url() provides a more flexible way to resolve the file URLs
# https://huggingface.co/datasets/jainr3/diffusiondb-pixelart/resolve/main/images/part-000001.zip
_URLS = {}
_PART_IDS = range(1, 2001)

for i in _PART_IDS:
    _URLS[i] = hf_hub_url(
        "jainr3/diffusiondb-pixelart",
        filename=f"images/part-{i:06}.zip",
        repo_type="dataset",
    )


# Add the metadata parquet URL as well
_URLS["metadata"] = hf_hub_url(
    "jainr3/diffusiondb-pixelart", filename="metadata.parquet", repo_type="dataset"
)

_SAMPLER_DICT = {
    1: "ddim",
    2: "plms",
    3: "k_euler",
    4: "k_euler_ancestral",
    5: "ddik_heunm",
    6: "k_dpm_2",
    7: "k_dpm_2_ancestral",
    8: "k_lms",
    9: "others",
}


class DiffusionDBConfig(datasets.BuilderConfig):
    """BuilderConfig for DiffusionDB."""

    def __init__(self, part_ids, **kwargs):
        """BuilderConfig for DiffusionDB.
        Args:
          part_ids([int]): A list of part_ids.
          **kwargs: keyword arguments forwarded to super.
        """
        super(DiffusionDBConfig, self).__init__(version=_VERSION, **kwargs)
        self.part_ids = part_ids


class DiffusionDB(datasets.GeneratorBasedBuilder):
    """A large-scale text-to-image prompt gallery dataset based on Stable Diffusion."""

    BUILDER_CONFIGS = []

    # Programmatically generate configuration options (HF requires to use a string
    # as the config key)
    for num_k in [1, 5, 10, 50, 100, 500, 1000]:
        for sampling in ["first", "random"]:
            num_k_str = f"{num_k}k" if num_k < 1000 else f"{num_k // 1000}m"
            subset_str = "2m_"

            if sampling == "random":
                # Name the config
                cur_name = subset_str + "random_" + num_k_str

                # Add a short description for each config
                cur_description = (
                    f"Random {num_k_str} images with their prompts and parameters"
                )

                # Sample part_ids
                total_part_ids = _PART_IDS
                part_ids = np.random.choice(
                    total_part_ids, num_k, replace=False
                ).tolist()
            else:
                # Name the config
                cur_name = subset_str + "first_" + num_k_str

                # Add a short description for each config
                cur_description = f"The first {num_k_str} images in this dataset with their prompts and parameters"

                # Sample part_ids
                total_part_ids = _PART_IDS
                part_ids = total_part_ids[1 : num_k + 1]

            # Create configs
            BUILDER_CONFIGS.append(
                DiffusionDBConfig(
                    name=cur_name,
                    part_ids=part_ids,
                    description=cur_description,
                ),
            )


    # Need to manually add all (2m)
    BUILDER_CONFIGS.append(
        DiffusionDBConfig(
            name="2m_all",
            part_ids=_PART_IDS,
            description="All images with their prompts and parameters",
        ),
    )

    # We also prove a text-only option, which loads the meatadata parquet file
    BUILDER_CONFIGS.append(
        DiffusionDBConfig(
            name="2m_text_only",
            part_ids=[],
            description="Only include all prompts and parameters (no image)",
        ),
    )


    # Default to only load 1k random images
    DEFAULT_CONFIG_NAME = "2m_random_1k"

    def _info(self):
        """Specify the information of DiffusionDB."""

        if "text_only" in self.config.name:
            features = datasets.Features(
                {
                    "image_name": datasets.Value("string"),
                    "prompt": datasets.Value("string"),
                    "part_id": datasets.Value("uint16"),
                    "seed": datasets.Value("uint32"),
                    "step": datasets.Value("uint16"),
                    "cfg": datasets.Value("float32"),
                    "sampler": datasets.Value("string"),
                    "width": datasets.Value("uint16"),
                    "height": datasets.Value("uint16"),
                    "user_name": datasets.Value("string"),
                    "timestamp": datasets.Value("timestamp[us, tz=UTC]"),
                    "image_nsfw": datasets.Value("float32"),
                    "prompt_nsfw": datasets.Value("float32"),
                },
            )

        else:
            features = datasets.Features(
                {
                    "image": datasets.Image(),
                    "prompt": datasets.Value("string"),
                    "seed": datasets.Value("uint32"),
                    "step": datasets.Value("uint16"),
                    "cfg": datasets.Value("float32"),
                    "sampler": datasets.Value("string"),
                    "width": datasets.Value("uint16"),
                    "height": datasets.Value("uint16"),
                    "user_name": datasets.Value("string"),
                    "timestamp": datasets.Value("timestamp[us, tz=UTC]"),
                    "image_nsfw": datasets.Value("float32"),
                    "prompt_nsfw": datasets.Value("float32"),
                },
            )

        return datasets.DatasetInfo(
            description=_DESCRIPTION,
            features=features,
            supervised_keys=None,
            homepage=_HOMEPAGE,
            license=_LICENSE,
            citation=_CITATION,
        )

    def _split_generators(self, dl_manager):
        # If several configurations are possible (listed in BUILDER_CONFIGS),
        # the configuration selected by the user is in self.config.name

        # dl_manager is a datasets.download.DownloadManager that can be used to
        # download and extract URLS It can accept any type or nested list/dict
        # and will give back the same structure with the url replaced with path
        # to local files. By default the archives will be extracted and a path
        # to a cached folder where they are extracted is returned instead of the
        # archive

        # Download and extract zip files of all sampled part_ids
        data_dirs = []
        json_paths = []

        # Resolve the urls
        urls = _URLS

        for cur_part_id in self.config.part_ids:
            cur_url = urls[cur_part_id]
            data_dir = dl_manager.download_and_extract(cur_url)

            data_dirs.append(data_dir)
            json_paths.append(join(data_dir, f"part-{cur_part_id:06}.json"))

        # Also download the metadata table
        metadata_path = dl_manager.download(urls["metadata"])

        return [
            datasets.SplitGenerator(
                name=datasets.Split.TRAIN,
                # These kwargs will be passed to _generate_examples
                gen_kwargs={
                    "data_dirs": data_dirs,
                    "json_paths": json_paths,
                    "metadata_path": metadata_path,
                },
            ),
        ]

    def _generate_examples(self, data_dirs, json_paths, metadata_path):
        # This method handles input defined in _split_generators to yield
        # (key, example) tuples from the dataset.
        # The `key` is for legacy reasons (tfds) and is not important in itself,
        # but must be unique for each example.

        # Load the metadata parquet file if the config is text_only
        if "text_only" in self.config.name:
            metadata_df = pd.read_parquet(metadata_path)
            for _, row in metadata_df.iterrows():
                yield row["image_name"], {
                    "image_name": row["image_name"],
                    "prompt": row["prompt"],
                    "part_id": row["part_id"],
                    "seed": row["seed"],
                    "step": row["step"],
                    "cfg": row["cfg"],
                    "sampler": _SAMPLER_DICT[int(row["sampler"])],
                    "width": row["width"],
                    "height": row["height"],
                    "user_name": row["user_name"],
                    "timestamp": None
                    if pd.isnull(row["timestamp"])
                    else row["timestamp"],
                    "image_nsfw": row["image_nsfw"],
                    "prompt_nsfw": row["prompt_nsfw"],
                }

        else:
            num_data_dirs = len(data_dirs)
            assert num_data_dirs == len(json_paths)

            # Read the metadata table (only rows with the needed part_ids)
            part_ids = []
            for path in json_paths:
                cur_id = int(re.sub(r"part-(\d+)\.json", r"\1", basename(path)))
                part_ids.append(cur_id)

            # We have to use pandas here to make the dataset preview work (it
            # uses streaming mode)

            print(metadata_path)
            
            metadata_table = pd.read_parquet(
                metadata_path,
                filters=[("part_id", "in", part_ids)],
            )

            # Iterate through all extracted zip folders for images
            for k in range(num_data_dirs):
                cur_data_dir = data_dirs[k]
                cur_json_path = json_paths[k]

                json_data = load(open(cur_json_path, "r", encoding="utf8"))

                for img_name in json_data:
                    img_params = json_data[img_name]
                    img_path = join(cur_data_dir, img_name)

                    # Query the metadata
                    query_result = metadata_table.query(f'`image_name` == "{img_name}"')

                    # Yields examples as (key, example) tuples
                    yield img_name, {
                        "image": {
                            "path": img_path,
                            "bytes": open(img_path, "rb").read(),
                        },
                        "prompt": img_params["p"],
                        "seed": int(img_params["se"]),
                        "step": int(img_params["st"]),
                        "cfg": float(img_params["c"]),
                        "sampler": img_params["sa"],
                        "width": query_result["width"].to_list()[0],
                        "height": query_result["height"].to_list()[0],
                        "user_name": query_result["user_name"].to_list()[0],
                        "timestamp": None
                        if pd.isnull(query_result["timestamp"].to_list()[0])
                        else query_result["timestamp"].to_list()[0],
                        "image_nsfw": query_result["image_nsfw"].to_list()[0],
                        "prompt_nsfw": query_result["prompt_nsfw"].to_list()[0],
                    }