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import numpy as np
from PIL import Image
from huggingface_hub import snapshot_download
from leffa.transform import LeffaTransform
from leffa.model import LeffaModel
from leffa.inference import LeffaInference
from utils.garment_agnostic_mask_predictor import AutoMasker
from utils.densepose_predictor import DensePosePredictor
from utils.utils import resize_and_center
import gradio as gr
# Download checkpoints
snapshot_download(repo_id="franciszzj/Leffa", local_dir="./ckpts")
mask_predictor = AutoMasker(
densepose_path="./ckpts/densepose",
schp_path="./ckpts/schp",
)
densepose_predictor = DensePosePredictor(
config_path="./ckpts/densepose/densepose_rcnn_R_50_FPN_s1x.yaml",
weights_path="./ckpts/densepose/model_final_162be9.pkl",
)
vt_model = LeffaModel(
pretrained_model_name_or_path="./ckpts/stable-diffusion-inpainting",
pretrained_model="./ckpts/virtual_tryon.pth",
)
vt_inference = LeffaInference(model=vt_model)
pt_model = LeffaModel(
pretrained_model_name_or_path="./ckpts/stable-diffusion-xl-1.0-inpainting-0.1",
pretrained_model="./ckpts/pose_transfer.pth",
)
pt_inference = LeffaInference(model=pt_model)
def leffa_predict(src_image_path, ref_image_path, control_type):
assert control_type in [
"virtual_tryon", "pose_transfer"], "Invalid control type: {}".format(control_type)
src_image = Image.open(src_image_path)
ref_image = Image.open(ref_image_path)
src_image = resize_and_center(src_image, 768, 1024)
ref_image = resize_and_center(ref_image, 768, 1024)
src_image_array = np.array(src_image)
ref_image_array = np.array(ref_image)
# Mask
if control_type == "virtual_tryon":
src_image = src_image.convert("RGB")
mask = mask_predictor(src_image, "upper")["mask"]
elif control_type == "pose_transfer":
mask = Image.fromarray(np.ones_like(src_image_array) * 255)
# DensePose
src_image_iuv_array = densepose_predictor.predict_iuv(src_image_array)
src_image_seg_array = densepose_predictor.predict_seg(src_image_array)
src_image_iuv = Image.fromarray(src_image_iuv_array)
src_image_seg = Image.fromarray(src_image_seg_array)
if control_type == "virtual_tryon":
densepose = src_image_seg
elif control_type == "pose_transfer":
densepose = src_image_iuv
# Leffa
transform = LeffaTransform()
data = {
"src_image": [src_image],
"ref_image": [ref_image],
"mask": [mask],
"densepose": [densepose],
}
data = transform(data)
if control_type == "virtual_tryon":
inference = vt_inference
elif control_type == "pose_transfer":
inference = pt_inference
output = inference(data)
gen_image = output["generated_image"][0]
# gen_image.save("gen_image.png")
return np.array(gen_image)
def leffa_predict_vt(src_image_path, ref_image_path):
return leffa_predict(src_image_path, ref_image_path, "virtual_tryon")
def leffa_predict_pt(src_image_path, ref_image_path):
return leffa_predict(src_image_path, ref_image_path, "pose_transfer")
if __name__ == "__main__":
# import sys
# src_image_path = sys.argv[1]
# ref_image_path = sys.argv[2]
# control_type = sys.argv[3]
# leffa_predict(src_image_path, ref_image_path, control_type)
title = "## Leffa: Learning Flow Fields in Attention for Controllable Person Image Generation"
link = "[📚 Paper](https://arxiv.org/abs/2412.08486) - [🔥 Demo](https://huggingface.co/spaces/franciszzj/Leffa) - [🤗 Model](https://huggingface.co/franciszzj/Leffa)"
description = "Leffa is a unified framework for controllable person image generation that enables precise manipulation of both appearance (i.e., virtual try-on) and pose (i.e., pose transfer)."
with gr.Blocks(theme=gr.themes.Default(primary_hue=gr.themes.colors.pink, secondary_hue=gr.themes.colors.red)).queue() as demo:
gr.Markdown(title)
gr.Markdown(link)
gr.Markdown(description)
with gr.Tab("Control Appearance (Virtual Try-on)"):
with gr.Row():
with gr.Column():
gr.Markdown("#### Person Image")
vt_src_image = gr.Image(
sources=["upload"],
type="filepath",
label="Person Image",
width=512,
height=512,
)
gr.Examples(
inputs=vt_src_image,
examples_per_page=5,
examples=["./ckpts/examples/person1/01350_00.jpg",
"./ckpts/examples/person1/01376_00.jpg",
"./ckpts/examples/person1/01416_00.jpg",
"./ckpts/examples/person1/05976_00.jpg",
"./ckpts/examples/person1/06094_00.jpg",],
)
with gr.Column():
gr.Markdown("#### Garment Image")
vt_ref_image = gr.Image(
sources=["upload"],
type="filepath",
label="Garment Image",
width=512,
height=512,
)
gr.Examples(
inputs=vt_ref_image,
examples_per_page=5,
examples=["./ckpts/examples/garment/01449_00.jpg",
"./ckpts/examples/garment/01486_00.jpg",
"./ckpts/examples/garment/01853_00.jpg",
"./ckpts/examples/garment/02070_00.jpg",
"./ckpts/examples/garment/03553_00.jpg",],
)
with gr.Column():
gr.Markdown("#### Generated Image")
vt_gen_image = gr.Image(
label="Generated Image",
width=512,
height=512,
)
with gr.Row():
vt_gen_button = gr.Button("Generate")
vt_gen_button.click(fn=leffa_predict_vt, inputs=[
vt_src_image, vt_ref_image], outputs=[vt_gen_image])
with gr.Tab("Control Pose (Pose Transfer)"):
with gr.Row():
with gr.Column():
gr.Markdown("#### Person Image")
pt_ref_image = gr.Image(
sources=["upload"],
type="filepath",
label="Person Image",
width=512,
height=512,
)
gr.Examples(
inputs=pt_ref_image,
examples_per_page=5,
examples=["./ckpts/examples/person1/01350_00.jpg",
"./ckpts/examples/person1/01376_00.jpg",
"./ckpts/examples/person1/01416_00.jpg",
"./ckpts/examples/person1/05976_00.jpg",
"./ckpts/examples/person1/06094_00.jpg",],
)
with gr.Column():
gr.Markdown("#### Target Pose Person Image")
pt_src_image = gr.Image(
sources=["upload"],
type="filepath",
label="Target Pose Person Image",
width=512,
height=512,
)
gr.Examples(
inputs=pt_src_image,
examples_per_page=5,
examples=["./ckpts/examples/person2/01850_00.jpg",
"./ckpts/examples/person2/01875_00.jpg",
"./ckpts/examples/person2/02532_00.jpg",
"./ckpts/examples/person2/02902_00.jpg",
"./ckpts/examples/person2/05346_00.jpg",],
)
with gr.Column():
gr.Markdown("#### Generated Image")
pt_gen_image = gr.Image(
label="Generated Image",
width=512,
height=512,
)
with gr.Row():
pose_transfer_gen_button = gr.Button("Generate")
pose_transfer_gen_button.click(fn=leffa_predict_pt, inputs=[
pt_src_image, pt_ref_image], outputs=[pt_gen_image])
demo.launch(share=True, server_port=7860)
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