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import sys
import os
import torch
from PIL import Image
from typing import List
import numpy as np
from utils import (
tensor_to_pil,
pil_to_tensor,
pad_image,
postprocess_image,
preprocess_image,
downloadModels,
)
sys.path.append(os.path.dirname("./ComfyUI/"))
from ComfyUI.nodes import (
CheckpointLoaderSimple,
VAEDecode,
VAEEncode,
KSampler,
EmptyLatentImage,
CLIPTextEncode,
)
from ComfyUI.comfy_extras.nodes_compositing import JoinImageWithAlpha
from ComfyUI.comfy_extras.nodes_mask import InvertMask, MaskToImage
from ComfyUI.comfy import samplers
from ComfyUI.custom_nodes.layerdiffuse.layered_diffusion import (
LayeredDiffusionFG,
LayeredDiffusionDecode,
LayeredDiffusionCond,
)
import gradio as gr
from briarmbg import BriaRMBG
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
downloadModels()
with torch.inference_mode():
ckpt_load_checkpoint = CheckpointLoaderSimple().load_checkpoint
ckpt = ckpt_load_checkpoint(ckpt_name="juggernautXL_v8Rundiffusion.safetensors")
cliptextencode = CLIPTextEncode().encode
emptylatentimage_generate = EmptyLatentImage().generate
ksampler_sample = KSampler().sample
vae_decode = VAEDecode().decode
vae_encode = VAEEncode().encode
ld_fg_apply_layered_diffusion = LayeredDiffusionFG().apply_layered_diffusion
ld_cond_apply_layered_diffusion = LayeredDiffusionCond().apply_layered_diffusion
ld_decode = LayeredDiffusionDecode().decode
mask_to_image = MaskToImage().mask_to_image
invert_mask = InvertMask().invert
join_image_with_alpha = JoinImageWithAlpha().join_image_with_alpha
rmbg_model = BriaRMBG.from_pretrained("briaai/RMBG-1.4").to(device)
def predict(
prompt: str,
negative_prompt: str,
input_image: Image.Image | None,
remove_bg: bool,
cond_mode: str,
seed: int,
sampler_name: str,
scheduler: str,
steps: int,
cfg: float,
denoise: float,
):
try:
with torch.inference_mode():
cliptextencode_prompt = cliptextencode(
text=prompt,
clip=ckpt[1],
)
cliptextencode_negative_prompt = cliptextencode(
text=negative_prompt,
clip=ckpt[1],
)
emptylatentimage_sample = emptylatentimage_generate(
width=1024, height=1024, batch_size=1
)
if input_image is not None:
input_image = pad_image(input_image).resize((1024, 1024))
if remove_bg:
orig_im_size = input_image.size
image = preprocess_image(np.array(input_image), [1024, 1024]).to(
device
)
result = rmbg_model(image)
# post process
result_mask_image = postprocess_image(result[0][0], orig_im_size)
# save result
pil_mask = Image.fromarray(result_mask_image)
no_bg_image = Image.new("RGBA", pil_mask.size, (0, 0, 0, 0))
no_bg_image.paste(input_image, mask=pil_mask)
input_image = no_bg_image
img_tensor = pil_to_tensor(input_image)
img_latent = vae_encode(pixels=img_tensor[0], vae=ckpt[2])
layereddiffusionapply_sample = ld_cond_apply_layered_diffusion(
config=cond_mode,
weight=1,
model=ckpt[0],
cond=cliptextencode_prompt[0],
uncond=cliptextencode_negative_prompt[0],
latent=img_latent[0],
)
ksampler = ksampler_sample(
steps=steps,
cfg=cfg,
sampler_name=sampler_name,
scheduler=scheduler,
seed=seed,
model=layereddiffusionapply_sample[0],
positive=layereddiffusionapply_sample[1],
negative=layereddiffusionapply_sample[2],
latent_image=emptylatentimage_sample[0],
denoise=denoise,
)
vaedecode_sample = vae_decode(
samples=ksampler[0],
vae=ckpt[2],
)
layereddiffusiondecode_sample = ld_decode(
sd_version="SDXL",
sub_batch_size=16,
samples=ksampler[0],
images=vaedecode_sample[0],
)
rgb_img = tensor_to_pil(vaedecode_sample[0])
return flatten([rgb_img])
else:
layereddiffusionapply_sample = ld_fg_apply_layered_diffusion(
config="SDXL, Conv Injection", weight=1, model=ckpt[0]
)
ksampler = ksampler_sample(
steps=steps,
cfg=cfg,
sampler_name=sampler_name,
scheduler=scheduler,
seed=seed,
model=layereddiffusionapply_sample[0],
positive=cliptextencode_prompt[0],
negative=cliptextencode_negative_prompt[0],
latent_image=emptylatentimage_sample[0],
denoise=denoise,
)
vaedecode_sample = vae_decode(
samples=ksampler[0],
vae=ckpt[2],
)
layereddiffusiondecode_sample = ld_decode(
sd_version="SDXL",
sub_batch_size=16,
samples=ksampler[0],
images=vaedecode_sample[0],
)
mask = mask_to_image(mask=layereddiffusiondecode_sample[1])
ld_image = tensor_to_pil(layereddiffusiondecode_sample[0][0])
inverted_mask = invert_mask(mask=layereddiffusiondecode_sample[1])
rgba_img = join_image_with_alpha(
image=layereddiffusiondecode_sample[0], alpha=inverted_mask[0]
)
rgba_img = tensor_to_pil(rgba_img[0])
mask = tensor_to_pil(mask[0])
rgb_img = tensor_to_pil(vaedecode_sample[0])
return flatten([rgba_img, mask])
# return flatten([rgba_img, mask, rgb_img, ld_image])
except Exception as e:
raise gr.Error(e)
examples = [["An old men sit on a chair looking at the sky"]]
def flatten(l: List[List[any]]) -> List[any]:
return [item for sublist in l for item in sublist]
def predict_examples(prompt, negative_prompt):
return predict(
prompt, negative_prompt, None, False, None, 0, "euler", "normal", 20, 8.0, 1.0
)
css = """
.gradio-container{
max-width: 50rem;
}
"""
with gr.Blocks(css=css) as blocks:
gr.Markdown("""# LayerDiffuse (unofficial)
Using ComfyUI building blocks with custom node by [huchenlei](https://github.com/huchenlei/ComfyUI-layerdiffuse)
""")
with gr.Row():
with gr.Column():
prompt = gr.Text(label="Prompt")
negative_prompt = gr.Text(label="Negative Prompt")
button = gr.Button("Generate")
with gr.Accordion(open=False, label="Input Images (Optional)"):
with gr.Group():
cond_mode = gr.Radio(
value="SDXL, Foreground",
choices=["SDXL, Foreground", "SDXL, Background"],
info="Whether to use input image as foreground or background",
)
remove_bg = gr.Checkbox(
info="Remove background using BriaRMBG",
label="Remove Background",
value=False,
)
input_image = gr.Image(label="Input Image", type="pil")
with gr.Accordion(open=False, label="Advanced Options"):
seed = gr.Slider(
label="Seed",
value=0,
minimum=-1,
maximum=0xFFFFFFFFFFFFFFFF,
step=1,
randomize=True,
)
sampler_name = gr.Dropdown(
choices=samplers.KSampler.SAMPLERS,
label="Sampler Name",
value=samplers.KSampler.SAMPLERS[0],
)
scheduler = gr.Dropdown(
choices=samplers.KSampler.SCHEDULERS,
label="Scheduler",
value=samplers.KSampler.SCHEDULERS[0],
)
steps = gr.Slider(
label="Steps", value=20, minimum=1, maximum=30, step=1
)
cfg = gr.Number(
label="CFG", value=8.0, minimum=0.0, maximum=100.0, step=0.1
)
denoise = gr.Number(
label="Denoise", value=1.0, minimum=0.0, maximum=1.0, step=0.01
)
with gr.Column(scale=1.8):
gallery = gr.Gallery(columns=[2], object_fit="contain", height="unset")
inputs = [
prompt,
negative_prompt,
input_image,
remove_bg,
cond_mode,
seed,
sampler_name,
scheduler,
steps,
cfg,
denoise,
]
outputs = [gallery]
gr.Examples(
fn=predict_examples,
examples=examples,
inputs=[prompt, negative_prompt],
outputs=outputs,
cache_examples=False,
)
button.click(fn=predict, inputs=inputs, outputs=outputs)
if __name__ == "__main__":
blocks.launch()
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