feat(data): add support for Hugging Face datasets

configs/ddt_butterflies_b2_256.yaml

@@ -0,0 +1,116 @@
+seed_everything: true
+tags:
+  exp: &exp ddt_butterflies_b2_256
+torch_hub_dir: null
+huggingface_cache_dir: null
+trainer:
+  default_root_dir: workdirs
+  accelerator: auto
+  strategy: auto
+  devices: auto
+  num_nodes: 1
+  precision: bf16-mixed
+  logger:
+    class_path: lightning.pytorch.loggers.WandbLogger
+    init_args:
+      project: ddt_butterflies
+      name: *exp
+      save_dir: workdirs
+  num_sanity_val_steps: 0
+  max_steps: 200000
+  val_check_interval: 2000
+  check_val_every_n_epoch: null
+  log_every_n_steps: 50
+  deterministic: null
+  inference_mode: true
+  use_distributed_sampler: false
+  callbacks:
+    - class_path: src.callbacks.model_checkpoint.CheckpointHook
+      init_args:
+        every_n_train_steps: 10000
+        save_top_k: -1
+        save_last: true
+    - class_path: src.callbacks.save_images.SaveImagesHook
+      init_args:
+        save_dir: val
+        max_save_num: 64
+model:
+  vae:
+    class_path: src.models.vae.LatentVAE
+    init_args:
+      precompute: false
+      weight_path: stabilityai/sd-vae-ft-ema
+  denoiser:
+    class_path: src.models.denoiser.decoupled_improved_dit.DDT
+    init_args:
+      in_channels: 4
+      patch_size: 2
+      num_groups: 12
+      hidden_size: &hidden_dim 768
+      num_blocks: 12
+      num_encoder_blocks: 8
+      num_classes: 1
+  conditioner:
+    class_path: src.models.conditioner.LabelConditioner
+    init_args:
+      null_class: 1
+  diffusion_trainer:
+    class_path: src.diffusion.stateful_flow_matching.training_repa.REPATrainer
+    init_args:
+      lognorm_t: true
+      encoder_weight_path: dinov2_vitb14
+      align_layer: 4
+      proj_denoiser_dim: *hidden_dim
+      proj_hidden_dim: *hidden_dim
+      proj_encoder_dim: 768
+      scheduler: &scheduler src.diffusion.stateful_flow_matching.scheduling.LinearScheduler
+  diffusion_sampler:
+    class_path: src.diffusion.stateful_flow_matching.sampling.EulerSampler
+    init_args:
+      num_steps: 250
+      guidance: 1.0
+      timeshift: 1.0
+      state_refresh_rate: 1
+      guidance_interval_min: 0.3
+      guidance_interval_max: 1.0
+      scheduler: *scheduler
+      w_scheduler: src.diffusion.stateful_flow_matching.scheduling.LinearScheduler
+      guidance_fn: src.diffusion.base.guidance.simple_guidance_fn
+      last_step: 0.04
+      step_fn: src.diffusion.stateful_flow_matching.sampling.ode_step_fn
+  ema_tracker:
+    class_path: src.callbacks.simple_ema.SimpleEMA
+    init_args:
+      decay: 0.9999
+  optimizer:
+    class_path: torch.optim.AdamW
+    init_args:
+      lr: 1e-3
+      betas:
+        - 0.9
+        - 0.95
+      weight_decay: 0.0
+data:
+  train_dataset: hf_image
+  train_root: ./data/butterflies
+  test_nature_root: null
+  test_gen_root: null
+  train_image_size: 256
+  train_batch_size: 128
+  train_num_workers: 8
+  train_prefetch_factor: 2
+  train_hf_name: huggan/smithsonian_butterflies_subset
+  train_hf_split: train
+  train_hf_image_column: image
+  train_hf_label_column: null
+  train_hf_cache_dir: null
+  eval_max_num_instances: 256
+  pred_batch_size: 32
+  pred_num_workers: 4
+  pred_seeds: null
+  pred_selected_classes: null
+  num_classes: 1
+  latent_shape:
+    - 4
+    - 32
+    - 32

requirements.txt

@@ -6,4 +6,5 @@ jsonargparse[signatures]>=4.27.7
 torchvision
 timm
 accelerate
-gradio
+gradio
+datasets

src/lightning_data.py

@@ -29,6 +29,11 @@ class DataModule(pl.LightningDataModule):
                 var_transform_engine: VARTransformEngine = None,
                 train_prefetch_factor=2,
                 train_dataset: str = None,
+                train_hf_name: str = None,
+                train_hf_split: str = "train",
+                train_hf_image_column: str = "image",
+                train_hf_label_column: str = None,
+                train_hf_cache_dir: str = None,
                 eval_batch_size=32,
                 eval_num_workers=4,
                 eval_max_num_instances=50000,
@@ -45,6 +50,11 @@ class DataModule(pl.LightningDataModule):
         self.train_root = train_root
         self.train_image_size = train_image_size
         self.train_dataset = train_dataset
+        self.train_hf_name = train_hf_name
+        self.train_hf_split = train_hf_split
+        self.train_hf_image_column = train_hf_image_column
+        self.train_hf_label_column = train_hf_label_column
+        self.train_hf_cache_dir = train_hf_cache_dir
         # stupid data_convert override, just to make nebular happy
         self.train_batch_size = train_batch_size
         self.train_num_workers = train_num_workers
@@ -101,6 +111,18 @@ class DataModule(pl.LightningDataModule):
                self.train_dataset = PixImageNet512(
                    root=self.train_root,
                )
+           elif self.train_dataset == "hf_image":
+               from src.data.dataset.hf_image import HuggingFaceImageDataset
+               if self.train_hf_name is None:
+                   raise ValueError("train_hf_name must be set when train_dataset=hf_image")
+               self.train_dataset = HuggingFaceImageDataset(
+                   name=self.train_hf_name,
+                   split=self.train_hf_split,
+                   image_column=self.train_hf_image_column,
+                   label_column=self.train_hf_label_column,
+                   resolution=self.train_image_size,
+                   cache_dir=self.train_hf_cache_dir,
+               )
            else:
              raise NotImplementedError("no such dataset")