update sd inpainting pipeline
This commit is contained in:
parent
b92e9d8da6
commit
3c87b050d9
@ -4,9 +4,8 @@ import PIL.Image
|
|||||||
import cv2
|
import cv2
|
||||||
import numpy as np
|
import numpy as np
|
||||||
import torch
|
import torch
|
||||||
from diffusers import PNDMScheduler, DDIMScheduler
|
from diffusers import PNDMScheduler, DDIMScheduler, LMSDiscreteScheduler
|
||||||
from loguru import logger
|
from loguru import logger
|
||||||
from transformers import FeatureExtractionMixin, ImageFeatureExtractionMixin
|
|
||||||
|
|
||||||
from lama_cleaner.helper import norm_img
|
from lama_cleaner.helper import norm_img
|
||||||
|
|
||||||
@ -39,30 +38,6 @@ from lama_cleaner.schema import Config, SDSampler
|
|||||||
# mask = torch.from_numpy(mask)
|
# mask = torch.from_numpy(mask)
|
||||||
# return mask
|
# return mask
|
||||||
|
|
||||||
class DummyFeatureExtractorOutput:
|
|
||||||
def __init__(self, pixel_values):
|
|
||||||
self.pixel_values = pixel_values
|
|
||||||
|
|
||||||
def to(self, device):
|
|
||||||
return self
|
|
||||||
|
|
||||||
|
|
||||||
class DummyFeatureExtractor(FeatureExtractionMixin, ImageFeatureExtractionMixin):
|
|
||||||
def __init__(self, **kwargs):
|
|
||||||
super().__init__(**kwargs)
|
|
||||||
|
|
||||||
def __call__(self, *args, **kwargs):
|
|
||||||
return DummyFeatureExtractorOutput(torch.empty(0, 3))
|
|
||||||
|
|
||||||
|
|
||||||
class DummySafetyChecker:
|
|
||||||
def __init__(self, *args, **kwargs):
|
|
||||||
pass
|
|
||||||
|
|
||||||
def __call__(self, clip_input, images):
|
|
||||||
return images, False
|
|
||||||
|
|
||||||
|
|
||||||
class SD(InpaintModel):
|
class SD(InpaintModel):
|
||||||
pad_mod = 64 # current diffusers only support 64 https://github.com/huggingface/diffusers/pull/505
|
pad_mod = 64 # current diffusers only support 64 https://github.com/huggingface/diffusers/pull/505
|
||||||
min_size = 512
|
min_size = 512
|
||||||
@ -74,8 +49,7 @@ class SD(InpaintModel):
|
|||||||
if kwargs['sd_disable_nsfw']:
|
if kwargs['sd_disable_nsfw']:
|
||||||
logger.info("Disable Stable Diffusion Model NSFW checker")
|
logger.info("Disable Stable Diffusion Model NSFW checker")
|
||||||
model_kwargs.update(dict(
|
model_kwargs.update(dict(
|
||||||
feature_extractor=DummyFeatureExtractor(),
|
safety_checker=None,
|
||||||
safety_checker=DummySafetyChecker(),
|
|
||||||
))
|
))
|
||||||
|
|
||||||
self.model = StableDiffusionInpaintPipeline.from_pretrained(
|
self.model = StableDiffusionInpaintPipeline.from_pretrained(
|
||||||
@ -94,7 +68,7 @@ class SD(InpaintModel):
|
|||||||
self.model.text_encoder = self.model.text_encoder.to(torch.device('cpu'), non_blocking=True)
|
self.model.text_encoder = self.model.text_encoder.to(torch.device('cpu'), non_blocking=True)
|
||||||
self.model.text_encoder = self.model.text_encoder.to(torch.float32, non_blocking=True )
|
self.model.text_encoder = self.model.text_encoder.to(torch.float32, non_blocking=True )
|
||||||
|
|
||||||
self.callbacks = kwargs.pop("callbacks", None)
|
self.callback = kwargs.pop("callback", None)
|
||||||
|
|
||||||
@torch.cuda.amp.autocast()
|
@torch.cuda.amp.autocast()
|
||||||
def forward(self, image, mask, config: Config):
|
def forward(self, image, mask, config: Config):
|
||||||
@ -133,6 +107,8 @@ class SD(InpaintModel):
|
|||||||
"skip_prk_steps": True,
|
"skip_prk_steps": True,
|
||||||
}
|
}
|
||||||
scheduler = PNDMScheduler(**PNDM_kwargs)
|
scheduler = PNDMScheduler(**PNDM_kwargs)
|
||||||
|
elif config.sd_sampler == SDSampler.k_lms:
|
||||||
|
scheduler = LMSDiscreteScheduler(beta_start=0.00085, beta_end=0.012, beta_schedule="scaled_linear")
|
||||||
else:
|
else:
|
||||||
raise ValueError(config.sd_sampler)
|
raise ValueError(config.sd_sampler)
|
||||||
|
|
||||||
@ -156,7 +132,7 @@ class SD(InpaintModel):
|
|||||||
num_inference_steps=config.sd_steps,
|
num_inference_steps=config.sd_steps,
|
||||||
guidance_scale=config.sd_guidance_scale,
|
guidance_scale=config.sd_guidance_scale,
|
||||||
output_type="np.array",
|
output_type="np.array",
|
||||||
callbacks=self.callbacks,
|
callback=self.callback,
|
||||||
).images[0]
|
).images[0]
|
||||||
|
|
||||||
output = (output * 255).round().astype("uint8")
|
output = (output * 255).round().astype("uint8")
|
||||||
|
@ -5,9 +5,10 @@ import numpy as np
|
|||||||
import torch
|
import torch
|
||||||
|
|
||||||
import PIL
|
import PIL
|
||||||
from diffusers import DiffusionPipeline, AutoencoderKL, UNet2DConditionModel, DDIMScheduler, PNDMScheduler
|
from diffusers import DiffusionPipeline, AutoencoderKL, UNet2DConditionModel, DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler
|
||||||
from diffusers.pipelines.stable_diffusion import StableDiffusionSafetyChecker, StableDiffusionPipelineOutput
|
from diffusers.pipelines.stable_diffusion import StableDiffusionSafetyChecker, StableDiffusionPipelineOutput
|
||||||
from diffusers.utils import logging
|
from diffusers.utils import logging, deprecate
|
||||||
|
from diffusers.configuration_utils import FrozenDict
|
||||||
from tqdm.auto import tqdm
|
from tqdm.auto import tqdm
|
||||||
from transformers import CLIPFeatureExtractor, CLIPTextModel, CLIPTokenizer
|
from transformers import CLIPFeatureExtractor, CLIPTextModel, CLIPTokenizer
|
||||||
|
|
||||||
@ -59,7 +60,7 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
A scheduler to be used in combination with `unet` to denoise the encoded image latens. Can be one of
|
A scheduler to be used in combination with `unet` to denoise the encoded image latens. Can be one of
|
||||||
[`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`].
|
[`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`].
|
||||||
safety_checker ([`StableDiffusionSafetyChecker`]):
|
safety_checker ([`StableDiffusionSafetyChecker`]):
|
||||||
Classification module that estimates whether generated images could be considered offsensive or harmful.
|
Classification module that estimates whether generated images could be considered offensive or harmful.
|
||||||
Please, refer to the [model card](https://huggingface.co/CompVis/stable-diffusion-v1-4) for details.
|
Please, refer to the [model card](https://huggingface.co/CompVis/stable-diffusion-v1-4) for details.
|
||||||
feature_extractor ([`CLIPFeatureExtractor`]):
|
feature_extractor ([`CLIPFeatureExtractor`]):
|
||||||
Model that extracts features from generated images to be used as inputs for the `safety_checker`.
|
Model that extracts features from generated images to be used as inputs for the `safety_checker`.
|
||||||
@ -71,13 +72,37 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
text_encoder: CLIPTextModel,
|
text_encoder: CLIPTextModel,
|
||||||
tokenizer: CLIPTokenizer,
|
tokenizer: CLIPTokenizer,
|
||||||
unet: UNet2DConditionModel,
|
unet: UNet2DConditionModel,
|
||||||
scheduler: Union[DDIMScheduler, PNDMScheduler],
|
scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler],
|
||||||
safety_checker: StableDiffusionSafetyChecker,
|
safety_checker: StableDiffusionSafetyChecker,
|
||||||
feature_extractor: CLIPFeatureExtractor,
|
feature_extractor: CLIPFeatureExtractor,
|
||||||
):
|
):
|
||||||
super().__init__()
|
super().__init__()
|
||||||
scheduler = scheduler.set_format("pt")
|
|
||||||
logger.info("`StableDiffusionInpaintPipeline` is experimental and will very likely change in the future.")
|
logger.info("`StableDiffusionInpaintPipeline` is experimental and will very likely change in the future.")
|
||||||
|
|
||||||
|
if hasattr(scheduler.config, "steps_offset") and scheduler.config.steps_offset != 1:
|
||||||
|
deprecation_message = (
|
||||||
|
f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`"
|
||||||
|
f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure "
|
||||||
|
"to update the config accordingly as leaving `steps_offset` might led to incorrect results"
|
||||||
|
" in future versions. If you have downloaded this checkpoint from the Hugging Face Hub,"
|
||||||
|
" it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`"
|
||||||
|
" file"
|
||||||
|
)
|
||||||
|
deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False)
|
||||||
|
new_config = dict(scheduler.config)
|
||||||
|
new_config["steps_offset"] = 1
|
||||||
|
scheduler._internal_dict = FrozenDict(new_config)
|
||||||
|
|
||||||
|
if safety_checker is None:
|
||||||
|
logger.warning(
|
||||||
|
f"You have disabled the safety checker for {self.__class__} by passing `safety_checker=None`. Ensure"
|
||||||
|
" that you abide to the conditions of the Stable Diffusion license and do not expose unfiltered"
|
||||||
|
" results in services or applications open to the public. Both the diffusers team and Hugging Face"
|
||||||
|
" strongly recommend to keep the safety filter enabled in all public facing circumstances, disabling"
|
||||||
|
" it only for use-cases that involve analyzing network behavior or auditing its results. For more"
|
||||||
|
" information, please have a look at https://github.com/huggingface/diffusers/pull/254 ."
|
||||||
|
)
|
||||||
|
|
||||||
self.register_modules(
|
self.register_modules(
|
||||||
vae=vae,
|
vae=vae,
|
||||||
text_encoder=text_encoder,
|
text_encoder=text_encoder,
|
||||||
@ -113,7 +138,7 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
back to computing attention in one step.
|
back to computing attention in one step.
|
||||||
"""
|
"""
|
||||||
# set slice_size = `None` to disable `set_attention_slice`
|
# set slice_size = `None` to disable `set_attention_slice`
|
||||||
self.enable_attention_slice(None)
|
self.enable_attention_slicing(None)
|
||||||
|
|
||||||
@torch.no_grad()
|
@torch.no_grad()
|
||||||
def __call__(
|
def __call__(
|
||||||
@ -124,11 +149,15 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
strength: float = 0.8,
|
strength: float = 0.8,
|
||||||
num_inference_steps: Optional[int] = 50,
|
num_inference_steps: Optional[int] = 50,
|
||||||
guidance_scale: Optional[float] = 7.5,
|
guidance_scale: Optional[float] = 7.5,
|
||||||
|
negative_prompt: Optional[Union[str, List[str]]] = None,
|
||||||
|
num_images_per_prompt: Optional[int] = 1,
|
||||||
eta: Optional[float] = 0.0,
|
eta: Optional[float] = 0.0,
|
||||||
generator: Optional[torch.Generator] = None,
|
generator: Optional[torch.Generator] = None,
|
||||||
output_type: Optional[str] = "pil",
|
output_type: Optional[str] = "pil",
|
||||||
return_dict: bool = True,
|
return_dict: bool = True,
|
||||||
callbacks: List[Callable[[int], None]] = None
|
callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None,
|
||||||
|
callback_steps: Optional[int] = 1,
|
||||||
|
**kwargs,
|
||||||
):
|
):
|
||||||
r"""
|
r"""
|
||||||
Function invoked when calling the pipeline for generation.
|
Function invoked when calling the pipeline for generation.
|
||||||
@ -141,8 +170,9 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
process. This is the image whose masked region will be inpainted.
|
process. This is the image whose masked region will be inpainted.
|
||||||
mask_image (`torch.FloatTensor` or `PIL.Image.Image`):
|
mask_image (`torch.FloatTensor` or `PIL.Image.Image`):
|
||||||
`Image`, or tensor representing an image batch, to mask `init_image`. White pixels in the mask will be
|
`Image`, or tensor representing an image batch, to mask `init_image`. White pixels in the mask will be
|
||||||
replaced by noise and therefore repainted, while black pixels will be preserved. The mask image will be
|
replaced by noise and therefore repainted, while black pixels will be preserved. If `mask_image` is a
|
||||||
converted to a single channel (luminance) before use.
|
PIL image, it will be converted to a single channel (luminance) before use. If it's a tensor, it should
|
||||||
|
contain one color channel (L) instead of 3, so the expected shape would be `(B, H, W, 1)`.
|
||||||
strength (`float`, *optional*, defaults to 0.8):
|
strength (`float`, *optional*, defaults to 0.8):
|
||||||
Conceptually, indicates how much to inpaint the masked area. Must be between 0 and 1. When `strength`
|
Conceptually, indicates how much to inpaint the masked area. Must be between 0 and 1. When `strength`
|
||||||
is 1, the denoising process will be run on the masked area for the full number of iterations specified
|
is 1, the denoising process will be run on the masked area for the full number of iterations specified
|
||||||
@ -157,6 +187,11 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale >
|
Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale >
|
||||||
1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`,
|
1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`,
|
||||||
usually at the expense of lower image quality.
|
usually at the expense of lower image quality.
|
||||||
|
negative_prompt (`str` or `List[str]`, *optional*):
|
||||||
|
The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored
|
||||||
|
if `guidance_scale` is less than `1`).
|
||||||
|
num_images_per_prompt (`int`, *optional*, defaults to 1):
|
||||||
|
The number of images to generate per prompt.
|
||||||
eta (`float`, *optional*, defaults to 0.0):
|
eta (`float`, *optional*, defaults to 0.0):
|
||||||
Corresponds to parameter eta (η) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to
|
Corresponds to parameter eta (η) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to
|
||||||
[`schedulers.DDIMScheduler`], will be ignored for others.
|
[`schedulers.DDIMScheduler`], will be ignored for others.
|
||||||
@ -165,10 +200,16 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
deterministic.
|
deterministic.
|
||||||
output_type (`str`, *optional*, defaults to `"pil"`):
|
output_type (`str`, *optional*, defaults to `"pil"`):
|
||||||
The output format of the generate image. Choose between
|
The output format of the generate image. Choose between
|
||||||
[PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `nd.array`.
|
[PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`.
|
||||||
return_dict (`bool`, *optional*, defaults to `True`):
|
return_dict (`bool`, *optional*, defaults to `True`):
|
||||||
Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a
|
Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a
|
||||||
plain tuple.
|
plain tuple.
|
||||||
|
callback (`Callable`, *optional*):
|
||||||
|
A function that will be called every `callback_steps` steps during inference. The function will be
|
||||||
|
called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`.
|
||||||
|
callback_steps (`int`, *optional*, defaults to 1):
|
||||||
|
The frequency at which the `callback` function will be called. If not specified, the callback will be
|
||||||
|
called at every step.
|
||||||
|
|
||||||
Returns:
|
Returns:
|
||||||
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`:
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`:
|
||||||
@ -187,58 +228,39 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
if strength < 0 or strength > 1:
|
if strength < 0 or strength > 1:
|
||||||
raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}")
|
raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}")
|
||||||
|
|
||||||
|
if (callback_steps is None) or (
|
||||||
|
callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0)
|
||||||
|
):
|
||||||
|
raise ValueError(
|
||||||
|
f"`callback_steps` has to be a positive integer but is {callback_steps} of type"
|
||||||
|
f" {type(callback_steps)}."
|
||||||
|
)
|
||||||
|
|
||||||
# set timesteps
|
# set timesteps
|
||||||
accepts_offset = "offset" in set(inspect.signature(self.scheduler.set_timesteps).parameters.keys())
|
self.scheduler.set_timesteps(num_inference_steps)
|
||||||
extra_set_kwargs = {}
|
|
||||||
offset = 0
|
|
||||||
if accepts_offset:
|
|
||||||
offset = 1
|
|
||||||
extra_set_kwargs["offset"] = 1
|
|
||||||
|
|
||||||
self.scheduler.set_timesteps(num_inference_steps, **extra_set_kwargs)
|
|
||||||
|
|
||||||
# preprocess image
|
|
||||||
init_image = preprocess_image(init_image).to(self.device)
|
|
||||||
|
|
||||||
# encode the init image into latents and scale the latents
|
|
||||||
init_latent_dist = self.vae.encode(init_image.to(self.device)).latent_dist
|
|
||||||
init_latents = init_latent_dist.sample(generator=generator)
|
|
||||||
|
|
||||||
init_latents = 0.18215 * init_latents
|
|
||||||
|
|
||||||
# Expand init_latents for batch_size
|
|
||||||
init_latents = torch.cat([init_latents] * batch_size)
|
|
||||||
init_latents_orig = init_latents
|
|
||||||
|
|
||||||
# preprocess mask
|
|
||||||
mask = preprocess_mask(mask_image).to(self.device)
|
|
||||||
mask = torch.cat([mask] * batch_size)
|
|
||||||
|
|
||||||
# check sizes
|
|
||||||
if not mask.shape == init_latents.shape:
|
|
||||||
raise ValueError("The mask and init_image should be the same size!")
|
|
||||||
|
|
||||||
# get the original timestep using init_timestep
|
|
||||||
init_timestep = int(num_inference_steps * strength) + offset
|
|
||||||
init_timestep = min(init_timestep, num_inference_steps)
|
|
||||||
timesteps = self.scheduler.timesteps[-init_timestep]
|
|
||||||
timesteps = torch.tensor([timesteps] * batch_size, dtype=torch.long, device=self.device)
|
|
||||||
|
|
||||||
# add noise to latents using the timesteps
|
|
||||||
noise = torch.randn(init_latents.shape, generator=generator, device=self.device)
|
|
||||||
init_latents = self.scheduler.add_noise(init_latents, noise, timesteps)
|
|
||||||
|
|
||||||
# get prompt text embeddings
|
# get prompt text embeddings
|
||||||
text_input = self.tokenizer(
|
text_inputs = self.tokenizer(
|
||||||
prompt,
|
prompt,
|
||||||
padding="max_length",
|
padding="max_length",
|
||||||
max_length=self.tokenizer.model_max_length,
|
max_length=self.tokenizer.model_max_length,
|
||||||
truncation=True,
|
|
||||||
return_tensors="pt",
|
return_tensors="pt",
|
||||||
)
|
)
|
||||||
text_encoder_device = self.text_encoder.device
|
text_input_ids = text_inputs.input_ids
|
||||||
|
|
||||||
text_embeddings = self.text_encoder(text_input.input_ids.to(text_encoder_device, non_blocking=True))[0].to(self.device, non_blocking=True)
|
if text_input_ids.shape[-1] > self.tokenizer.model_max_length:
|
||||||
|
removed_text = self.tokenizer.batch_decode(text_input_ids[:, self.tokenizer.model_max_length :])
|
||||||
|
logger.warning(
|
||||||
|
"The following part of your input was truncated because CLIP can only handle sequences up to"
|
||||||
|
f" {self.tokenizer.model_max_length} tokens: {removed_text}"
|
||||||
|
)
|
||||||
|
text_input_ids = text_input_ids[:, : self.tokenizer.model_max_length]
|
||||||
|
|
||||||
|
text_encoder_device = self.text_encoder.device
|
||||||
|
text_embeddings = self.text_encoder(text_input_ids.to(text_encoder_device))[0].to(self.device)
|
||||||
|
|
||||||
|
# duplicate text embeddings for each generation per prompt
|
||||||
|
text_embeddings = text_embeddings.repeat_interleave(num_images_per_prompt, dim=0)
|
||||||
|
|
||||||
# here `guidance_scale` is defined analog to the guidance weight `w` of equation (2)
|
# here `guidance_scale` is defined analog to the guidance weight `w` of equation (2)
|
||||||
# of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1`
|
# of the Imagen paper: https://arxiv.org/pdf/2205.11487.pdf . `guidance_scale = 1`
|
||||||
@ -246,17 +268,80 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
do_classifier_free_guidance = guidance_scale > 1.0
|
do_classifier_free_guidance = guidance_scale > 1.0
|
||||||
# get unconditional embeddings for classifier free guidance
|
# get unconditional embeddings for classifier free guidance
|
||||||
if do_classifier_free_guidance:
|
if do_classifier_free_guidance:
|
||||||
max_length = text_input.input_ids.shape[-1]
|
uncond_tokens: List[str]
|
||||||
uncond_input = self.tokenizer(
|
if negative_prompt is None:
|
||||||
[""] * batch_size, padding="max_length", max_length=max_length, return_tensors="pt"
|
uncond_tokens = [""]
|
||||||
|
elif type(prompt) is not type(negative_prompt):
|
||||||
|
raise TypeError(
|
||||||
|
f"`negative_prompt` should be the same type to `prompt`, but got {type(negative_prompt)} !="
|
||||||
|
f" {type(prompt)}."
|
||||||
)
|
)
|
||||||
uncond_embeddings = self.text_encoder(uncond_input.input_ids.to(text_encoder_device, non_blocking=True))[0].to(self.device, non_blocking=True)
|
elif isinstance(negative_prompt, str):
|
||||||
|
uncond_tokens = [negative_prompt]
|
||||||
|
elif batch_size != len(negative_prompt):
|
||||||
|
raise ValueError(
|
||||||
|
f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:"
|
||||||
|
f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches"
|
||||||
|
" the batch size of `prompt`."
|
||||||
|
)
|
||||||
|
else:
|
||||||
|
uncond_tokens = negative_prompt
|
||||||
|
|
||||||
|
max_length = text_input_ids.shape[-1]
|
||||||
|
uncond_input = self.tokenizer(
|
||||||
|
uncond_tokens,
|
||||||
|
padding="max_length",
|
||||||
|
max_length=max_length,
|
||||||
|
truncation=True,
|
||||||
|
return_tensors="pt",
|
||||||
|
)
|
||||||
|
uncond_embeddings = self.text_encoder(uncond_input.input_ids.to(text_encoder_device))[0].to(self.device)
|
||||||
|
|
||||||
|
# duplicate unconditional embeddings for each generation per prompt
|
||||||
|
uncond_embeddings = uncond_embeddings.repeat_interleave(batch_size * num_images_per_prompt, dim=0)
|
||||||
|
|
||||||
# For classifier free guidance, we need to do two forward passes.
|
# For classifier free guidance, we need to do two forward passes.
|
||||||
# Here we concatenate the unconditional and text embeddings into a single batch
|
# Here we concatenate the unconditional and text embeddings into a single batch
|
||||||
# to avoid doing two forward passes
|
# to avoid doing two forward passes
|
||||||
text_embeddings = torch.cat([uncond_embeddings, text_embeddings])
|
text_embeddings = torch.cat([uncond_embeddings, text_embeddings])
|
||||||
|
|
||||||
|
# preprocess image
|
||||||
|
if not isinstance(init_image, torch.FloatTensor):
|
||||||
|
init_image = preprocess_image(init_image)
|
||||||
|
|
||||||
|
# encode the init image into latents and scale the latents
|
||||||
|
latents_dtype = text_embeddings.dtype
|
||||||
|
init_image = init_image.to(device=self.device, dtype=latents_dtype)
|
||||||
|
init_latent_dist = self.vae.encode(init_image).latent_dist
|
||||||
|
init_latents = init_latent_dist.sample(generator=generator)
|
||||||
|
init_latents = 0.18215 * init_latents
|
||||||
|
|
||||||
|
# Expand init_latents for batch_size and num_images_per_prompt
|
||||||
|
init_latents = torch.cat([init_latents] * batch_size * num_images_per_prompt, dim=0)
|
||||||
|
init_latents_orig = init_latents
|
||||||
|
|
||||||
|
# preprocess mask
|
||||||
|
if not isinstance(mask_image, torch.FloatTensor):
|
||||||
|
mask_image = preprocess_mask(mask_image)
|
||||||
|
mask_image = mask_image.to(device=self.device, dtype=latents_dtype)
|
||||||
|
mask = torch.cat([mask_image] * batch_size * num_images_per_prompt)
|
||||||
|
|
||||||
|
# check sizes
|
||||||
|
if not mask.shape == init_latents.shape:
|
||||||
|
raise ValueError("The mask and init_image should be the same size!")
|
||||||
|
|
||||||
|
# get the original timestep using init_timestep
|
||||||
|
offset = self.scheduler.config.get("steps_offset", 0)
|
||||||
|
init_timestep = int(num_inference_steps * strength) + offset
|
||||||
|
init_timestep = min(init_timestep, num_inference_steps)
|
||||||
|
|
||||||
|
timesteps = self.scheduler.timesteps[-init_timestep]
|
||||||
|
timesteps = torch.tensor([timesteps] * batch_size * num_images_per_prompt, device=self.device)
|
||||||
|
|
||||||
|
# add noise to latents using the timesteps
|
||||||
|
noise = torch.randn(init_latents.shape, generator=generator, device=self.device, dtype=latents_dtype)
|
||||||
|
init_latents = self.scheduler.add_noise(init_latents, noise, timesteps)
|
||||||
|
|
||||||
# prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
|
# prepare extra kwargs for the scheduler step, since not all schedulers have the same signature
|
||||||
# eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.
|
# eta (η) is only used with the DDIMScheduler, it will be ignored for other schedulers.
|
||||||
# eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502
|
# eta corresponds to η in DDIM paper: https://arxiv.org/abs/2010.02502
|
||||||
@ -267,10 +352,18 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
extra_step_kwargs["eta"] = eta
|
extra_step_kwargs["eta"] = eta
|
||||||
|
|
||||||
latents = init_latents
|
latents = init_latents
|
||||||
|
|
||||||
t_start = max(num_inference_steps - init_timestep + offset, 0)
|
t_start = max(num_inference_steps - init_timestep + offset, 0)
|
||||||
for i, t in tqdm(enumerate(self.scheduler.timesteps[t_start:])):
|
|
||||||
|
# Some schedulers like PNDM have timesteps as arrays
|
||||||
|
# It's more optimized to move all timesteps to correct device beforehand
|
||||||
|
timesteps = self.scheduler.timesteps[t_start:].to(self.device)
|
||||||
|
|
||||||
|
for i, t in tqdm(enumerate(timesteps)):
|
||||||
# expand the latents if we are doing classifier free guidance
|
# expand the latents if we are doing classifier free guidance
|
||||||
latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents
|
latent_model_input = torch.cat([latents] * 2) if do_classifier_free_guidance else latents
|
||||||
|
latent_model_input = self.scheduler.scale_model_input(latent_model_input, t)
|
||||||
|
|
||||||
# predict the noise residual
|
# predict the noise residual
|
||||||
noise_pred = self.unet(latent_model_input, t, encoder_hidden_states=text_embeddings).sample
|
noise_pred = self.unet(latent_model_input, t, encoder_hidden_states=text_embeddings).sample
|
||||||
|
|
||||||
@ -281,25 +374,28 @@ class StableDiffusionInpaintPipeline(DiffusionPipeline):
|
|||||||
|
|
||||||
# compute the previous noisy sample x_t -> x_t-1
|
# compute the previous noisy sample x_t -> x_t-1
|
||||||
latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample
|
latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample
|
||||||
|
|
||||||
# masking
|
# masking
|
||||||
init_latents_proper = self.scheduler.add_noise(init_latents_orig, noise, t)
|
init_latents_proper = self.scheduler.add_noise(init_latents_orig, noise, torch.tensor([t]))
|
||||||
|
|
||||||
latents = (init_latents_proper * mask) + (latents * (1 - mask))
|
latents = (init_latents_proper * mask) + (latents * (1 - mask))
|
||||||
|
|
||||||
if callbacks is not None:
|
# call the callback, if provided
|
||||||
for callback in callbacks:
|
if callback is not None and i % callback_steps == 0:
|
||||||
callback(i)
|
callback(i, t, latents)
|
||||||
|
|
||||||
# scale and decode the image latents with vae
|
|
||||||
latents = 1 / 0.18215 * latents
|
latents = 1 / 0.18215 * latents
|
||||||
image = self.vae.decode(latents).sample
|
image = self.vae.decode(latents).sample
|
||||||
|
|
||||||
image = (image / 2 + 0.5).clamp(0, 1)
|
image = (image / 2 + 0.5).clamp(0, 1)
|
||||||
image = image.cpu().permute(0, 2, 3, 1).numpy()
|
image = image.cpu().permute(0, 2, 3, 1).numpy()
|
||||||
|
|
||||||
# run safety checker
|
if self.safety_checker is not None:
|
||||||
safety_cheker_input = self.feature_extractor(self.numpy_to_pil(image), return_tensors="pt").to(self.device)
|
safety_checker_input = self.feature_extractor(self.numpy_to_pil(image), return_tensors="pt").to(
|
||||||
image, has_nsfw_concept = self.safety_checker(images=image, clip_input=safety_cheker_input.pixel_values)
|
self.device
|
||||||
|
)
|
||||||
|
image, has_nsfw_concept = self.safety_checker(images=image, clip_input=safety_checker_input.pixel_values)
|
||||||
|
else:
|
||||||
|
has_nsfw_concept = None
|
||||||
|
|
||||||
if output_type == "pil":
|
if output_type == "pil":
|
||||||
image = self.numpy_to_pil(image)
|
image = self.numpy_to_pil(image)
|
||||||
|
@ -17,6 +17,7 @@ class LDMSampler(str, Enum):
|
|||||||
class SDSampler(str, Enum):
|
class SDSampler(str, Enum):
|
||||||
ddim = "ddim"
|
ddim = "ddim"
|
||||||
pndm = "pndm"
|
pndm = "pndm"
|
||||||
|
k_lms = "k_lms"
|
||||||
|
|
||||||
|
|
||||||
class Config(BaseModel):
|
class Config(BaseModel):
|
||||||
|
@ -82,7 +82,7 @@ def get_image_ext(img_bytes):
|
|||||||
return w
|
return w
|
||||||
|
|
||||||
|
|
||||||
def diffuser_callback(step: int):
|
def diffuser_callback(i, t, latents):
|
||||||
pass
|
pass
|
||||||
# socketio.emit('diffusion_step', {'diffusion_step': step})
|
# socketio.emit('diffusion_step', {'diffusion_step': step})
|
||||||
|
|
||||||
@ -129,7 +129,7 @@ def process():
|
|||||||
)
|
)
|
||||||
|
|
||||||
if config.sd_seed == -1:
|
if config.sd_seed == -1:
|
||||||
config.sd_seed = random.randint(1, 9999999)
|
config.sd_seed = random.randint(1, 999999999)
|
||||||
|
|
||||||
logger.info(f"Origin image shape: {original_shape}")
|
logger.info(f"Origin image shape: {original_shape}")
|
||||||
image = resize_max_size(image, size_limit=size_limit, interpolation=interpolation)
|
image = resize_max_size(image, size_limit=size_limit, interpolation=interpolation)
|
||||||
@ -223,7 +223,7 @@ def main(args):
|
|||||||
sd_disable_nsfw=args.sd_disable_nsfw,
|
sd_disable_nsfw=args.sd_disable_nsfw,
|
||||||
sd_cpu_textencoder=args.sd_cpu_textencoder,
|
sd_cpu_textencoder=args.sd_cpu_textencoder,
|
||||||
sd_run_local=args.sd_run_local,
|
sd_run_local=args.sd_run_local,
|
||||||
callbacks=[diffuser_callback],
|
callback=diffuser_callback,
|
||||||
)
|
)
|
||||||
|
|
||||||
if args.gui:
|
if args.gui:
|
||||||
|
@ -171,7 +171,7 @@ def test_sd(strategy, sampler):
|
|||||||
sd_run_local=False,
|
sd_run_local=False,
|
||||||
sd_disable_nsfw=False,
|
sd_disable_nsfw=False,
|
||||||
sd_cpu_textencoder=False,
|
sd_cpu_textencoder=False,
|
||||||
callbacks=[callback])
|
callback=callback)
|
||||||
cfg = get_config(strategy, prompt='a cat sitting on a bench', sd_steps=sd_steps)
|
cfg = get_config(strategy, prompt='a cat sitting on a bench', sd_steps=sd_steps)
|
||||||
cfg.sd_sampler = sampler
|
cfg.sd_sampler = sampler
|
||||||
|
|
||||||
@ -193,9 +193,10 @@ def test_sd(strategy, sampler):
|
|||||||
|
|
||||||
|
|
||||||
@pytest.mark.parametrize("strategy", [HDStrategy.ORIGINAL])
|
@pytest.mark.parametrize("strategy", [HDStrategy.ORIGINAL])
|
||||||
@pytest.mark.parametrize("sampler", [SDSampler.ddim])
|
@pytest.mark.parametrize("sampler", [SDSampler.ddim, SDSampler.pndm, SDSampler.k_lms])
|
||||||
@pytest.mark.parametrize("disable_nsfw", [True, False])
|
@pytest.mark.parametrize("disable_nsfw", [True, False])
|
||||||
def test_sd_run_local(strategy, sampler, disable_nsfw):
|
@pytest.mark.parametrize("cpu_textencoder", [True, False])
|
||||||
|
def test_sd_run_local(strategy, sampler, disable_nsfw, cpu_textencoder):
|
||||||
def callback(step: int):
|
def callback(step: int):
|
||||||
print(f"sd_step_{step}")
|
print(f"sd_step_{step}")
|
||||||
|
|
||||||
@ -207,7 +208,7 @@ def test_sd_run_local(strategy, sampler, disable_nsfw):
|
|||||||
hf_access_token=None,
|
hf_access_token=None,
|
||||||
sd_run_local=True,
|
sd_run_local=True,
|
||||||
sd_disable_nsfw=disable_nsfw,
|
sd_disable_nsfw=disable_nsfw,
|
||||||
sd_cpu_textencoder=True,
|
sd_cpu_textencoder=cpu_textencoder,
|
||||||
)
|
)
|
||||||
cfg = get_config(strategy, prompt='a cat sitting on a bench', sd_steps=sd_steps)
|
cfg = get_config(strategy, prompt='a cat sitting on a bench', sd_steps=sd_steps)
|
||||||
cfg.sd_sampler = sampler
|
cfg.sd_sampler = sampler
|
||||||
@ -215,19 +216,11 @@ def test_sd_run_local(strategy, sampler, disable_nsfw):
|
|||||||
assert_equal(
|
assert_equal(
|
||||||
model,
|
model,
|
||||||
cfg,
|
cfg,
|
||||||
f"sd_{strategy.capitalize()}_{sampler}_local_result.png",
|
f"sd_{strategy.capitalize()}_{sampler}_local_disablensfw_{disable_nsfw}_cputextencoder_{cpu_textencoder}_result.png",
|
||||||
img_p=current_dir / "overture-creations-5sI6fQgYIuo.png",
|
img_p=current_dir / "overture-creations-5sI6fQgYIuo.png",
|
||||||
mask_p=current_dir / "overture-creations-5sI6fQgYIuo_mask.png",
|
mask_p=current_dir / "overture-creations-5sI6fQgYIuo_mask.png",
|
||||||
)
|
)
|
||||||
|
|
||||||
assert_equal(
|
|
||||||
model,
|
|
||||||
cfg,
|
|
||||||
f"sd_{strategy.capitalize()}_{sampler}_blur_mask_local_result.png",
|
|
||||||
img_p=current_dir / "overture-creations-5sI6fQgYIuo.png",
|
|
||||||
mask_p=current_dir / "overture-creations-5sI6fQgYIuo_mask_blur.png",
|
|
||||||
)
|
|
||||||
|
|
||||||
|
|
||||||
@pytest.mark.parametrize(
|
@pytest.mark.parametrize(
|
||||||
"strategy", [HDStrategy.ORIGINAL, HDStrategy.RESIZE, HDStrategy.CROP]
|
"strategy", [HDStrategy.ORIGINAL, HDStrategy.RESIZE, HDStrategy.CROP]
|
||||||
|
Loading…
Reference in New Issue
Block a user