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from PIL import Image
from pathlib import Path
from storage import (
save_multi_result,
delete_image_set,
promote_to_example,
list_gallery_urls,
download_to_local,
is_dataset_url,
save_image,
upload_image,
make_filename,
generate_id,
parse_filename,
parse_result_filename,
parse_multi_result_filename,
file_url,
LOCAL_DATA,
)
EXAMPLES_PREFIX = "examples"
UPLOADS_PREFIX = "user_uploads"
for subdir in ["portraits", "garments", "results"]:
(LOCAL_DATA / EXAMPLES_PREFIX / subdir).mkdir(parents=True, exist_ok=True)
(LOCAL_DATA / UPLOADS_PREFIX / subdir).mkdir(parents=True, exist_ok=True)
def _gallery_images(prefix, subdir):
return list_gallery_urls(prefix, subdir)
MAX_PEOPLE = 8
def build_demo(process_fn, detect_fn=None, max_people=MAX_PEOPLE):
def process_and_save(portrait_path, garment_pool, num_detected, *assignment_args):
if portrait_path is None:
raise gr.Error("Please select a portrait.")
if not garment_pool:
raise gr.Error("Please add at least one garment to the pool.")
result = process_fn(portrait_path, garment_pool, num_detected, *assignment_args)
if result and portrait_path:
p_parsed = parse_filename(Path(portrait_path).name)
if p_parsed:
# Upload portrait if local
local = Path(portrait_path)
if local.exists() and str(local).startswith(str(LOCAL_DATA)):
upload_image(local, str(local.relative_to(LOCAL_DATA)))
# Upload all garments in pool
for g in garment_pool:
garment_local = Path(g["path"])
if garment_local.exists() and str(garment_local).startswith(str(LOCAL_DATA)):
upload_image(garment_local, str(garment_local.relative_to(LOCAL_DATA)))
# Build garment ID list for filename
n = num_detected if num_detected else 0
max_p = len(assignment_args) // 2
pool_by_label = {g["label"]: g for g in garment_pool}
garment_ids = []
for i in range(n):
dd_val = assignment_args[i]
if dd_val == "Skip" or dd_val not in pool_by_label:
garment_ids.append(None)
else:
g = pool_by_label[dd_val]
g_parsed = parse_filename(Path(g["path"]).name)
garment_ids.append(g_parsed["id"] if g_parsed else generate_id())
save_multi_result(UPLOADS_PREFIX, p_parsed["id"], garment_ids, result)
return result
with gr.Blocks(title="Multi-Person Virtual Try-On") as demo:
with gr.Tabs():
# ---- Main VTON Tab ----
with gr.Tab("Virtual Try-On"):
gr.Markdown("# Multi-Person Virtual Try-On")
gr.Markdown("Select a portrait, add garments to the pool, detect people, and assign garments.")
selected_portrait = gr.State(value=None)
garment_pool = gr.State(value=[])
num_detected = gr.State(value=0)
garment_counter = gr.State(value=0)
gr.Markdown("**Step 1:** Select or upload a portrait, and select or upload garments to the pool.")
with gr.Row():
with gr.Column():
gr.Markdown("### Portrait")
portrait_gallery = gr.Gallery(
value=_gallery_images(UPLOADS_PREFIX, "portraits"),
label="Uploaded Portraits",
columns=4,
height=200,
allow_preview=False,
)
with gr.Accordion("Upload new portrait", open=False):
portrait_upload = gr.Image(type="pil", label="Upload Portrait", sources=["upload", "webcam"])
with gr.Row():
portrait_url_input = gr.Textbox(label="Or paste image URL", scale=4)
portrait_url_btn = gr.Button("Load", size="sm", scale=1)
preview_portrait = gr.Image(label="Selected Portrait", interactive=False, height=250)
# Garment pool section
with gr.Column():
gr.Markdown("### Garment Pool")
garment_gallery = gr.Gallery(
value=_gallery_images(UPLOADS_PREFIX, "garments"),
label="Available Garments (click to add to pool)",
columns=4,
height=200,
allow_preview=False,
)
with gr.Accordion("Upload new garment", open=False):
garment_upload = gr.Image(type="pil", label="Upload Garment", sources=["upload", "webcam"])
with gr.Row():
garment_url_input = gr.Textbox(label="Or paste image URL", scale=4)
garment_url_btn = gr.Button("Load", size="sm", scale=1)
garment_pool_gallery = gr.Gallery(
label="Current Pool",
columns=6,
height=250,
allow_preview=False,
)
clear_pool_btn = gr.Button("Clear Pool", size="sm", variant="stop")
gr.Markdown("**Step 2:** Detect people in the portrait. This lets you choose which garment goes on each person.")
detect_btn = gr.Button("Detect People", variant="secondary")
detect_status = gr.Textbox(interactive=False, show_label=False, value="")
people_gallery = gr.Gallery(
label="Detected People",
columns=6,
height=300,
allow_preview=False,
)
gr.Markdown("**Step 3:** Assign garments to each person, then click Try On.")
@gr.render(inputs=[num_detected, garment_pool])
def render_assignments(n_detected, pool):
n = n_detected or 0
choices = ["Skip"] + [g["label"] for g in (pool or [])]
default_garment = choices[1] if len(choices) > 1 else "Skip"
if n > 0:
gr.Markdown(f"### Assign Garments to {n} {'Person' if n == 1 else 'People'}")
dds = []
cats = []
for i in range(n):
with gr.Row():
dd = gr.Dropdown(
choices=choices,
value=default_garment,
label=f"Person {i + 1} — Garment",
scale=3,
interactive=True,
)
cat = gr.Radio(
choices=["tops", "bottoms", "one-pieces"],
value="tops",
label="Category",
scale=2,
interactive=True,
)
dds.append(dd)
cats.append(cat)
submit_btn = gr.Button("Try On", variant="primary")
result_image = gr.Image(type="pil", label="Result", interactive=False)
submit_btn.click(
process_and_save,
inputs=[selected_portrait, garment_pool, num_detected] + dds + cats,
outputs=result_image,
)
# Examples section
gr.Markdown("---")
gr.Markdown("### Examples")
example_sets = gr.State(value=[])
refresh_examples_btn = gr.Button("Refresh Examples", size="sm")
@gr.render(inputs=[example_sets])
def render_examples(sets):
for i, ex in enumerate(sets or []):
with gr.Row():
gr.Image(value=ex["portrait"], label="Portrait", height=200, interactive=False, scale=1)
for j, g in enumerate(ex["garments"]):
gr.Image(value=g, label=f"Garment {j+1}", height=200, interactive=False, scale=1)
gr.Image(value=ex["result"], label="Result", height=200, interactive=False, scale=1)
use_btn = gr.Button("Use", size="sm", scale=0, min_width=60)
use_btn.click(
lambda p=ex["portrait"], gs=ex["garments"]: _load_example(p, gs),
outputs=[selected_portrait, preview_portrait, garment_pool, garment_counter, garment_pool_gallery],
)
# -- Event handlers --
def on_portrait_gallery_select(evt: gr.SelectData):
path = evt.value["image"]["path"]
local_path = download_to_local(path)
return local_path, local_path
def on_garment_gallery_select(evt: gr.SelectData, pool, counter):
"""Add selected garment to pool."""
path = evt.value["image"]["path"]
local_path = download_to_local(path)
new_counter = counter + 1
label = f"Garment {new_counter}"
new_pool = pool + [{"path": local_path, "label": label}]
pool_images = [g["path"] for g in new_pool]
return new_pool, new_counter, pool_images
def _load_example(portrait_path, garment_paths):
pool = [{"path": g, "label": f"Garment {i+1}"} for i, g in enumerate(garment_paths)]
pool_images = [g["path"] for g in pool]
return portrait_path, portrait_path, pool, len(pool), pool_images
def clear_pool():
return [], 0, [], _gallery_images(UPLOADS_PREFIX, "garments")
def reset_detection():
return "", [], 0
detection_reset_outputs = [detect_status, people_gallery, num_detected]
portrait_gallery.select(
on_portrait_gallery_select, outputs=[selected_portrait, preview_portrait]
).then(reset_detection, outputs=detection_reset_outputs)
garment_gallery.select(
on_garment_gallery_select,
inputs=[garment_pool, garment_counter],
outputs=[garment_pool, garment_counter, garment_pool_gallery],
)
clear_pool_btn.click(
clear_pool,
outputs=[garment_pool, garment_counter, garment_pool_gallery, garment_gallery],
)
def on_portrait_upload(img, current_pool):
if img is None:
return _gallery_images(UPLOADS_PREFIX, "portraits"), None, None, None
item_id = generate_id()
fname = make_filename(item_id, "portrait")
local_path = LOCAL_DATA / UPLOADS_PREFIX / "portraits" / fname
save_image(img, local_path)
path = str(local_path)
return _gallery_images(UPLOADS_PREFIX, "portraits"), path, path, None
def on_garment_upload(img, pool, counter):
if img is None:
return _gallery_images(UPLOADS_PREFIX, "garments"), pool, counter, [g["path"] for g in pool], None
item_id = generate_id()
fname = make_filename(item_id, "garment")
local_path = LOCAL_DATA / UPLOADS_PREFIX / "garments" / fname
save_image(img, local_path)
path = str(local_path)
new_counter = counter + 1
label = f"Garment {new_counter}"
new_pool = pool + [{"path": path, "label": label}]
pool_images = [g["path"] for g in new_pool]
return _gallery_images(UPLOADS_PREFIX, "garments"), new_pool, new_counter, pool_images, None
def on_portrait_url(url, pool):
if not url or not url.strip():
return _gallery_images(UPLOADS_PREFIX, "portraits"), None, None, ""
local_path = download_to_local(url.strip())
if not is_dataset_url(url.strip()):
from PIL import Image as PILImage
item_id = generate_id()
fname = make_filename(item_id, "portrait")
dest = LOCAL_DATA / UPLOADS_PREFIX / "portraits" / fname
save_image(PILImage.open(local_path), dest)
local_path = str(dest)
return _gallery_images(UPLOADS_PREFIX, "portraits"), local_path, local_path, ""
def on_garment_url(url, pool, counter):
if not url or not url.strip():
return _gallery_images(UPLOADS_PREFIX, "garments"), pool, counter, [g["path"] for g in pool], ""
local_path = download_to_local(url.strip())
if not is_dataset_url(url.strip()):
from PIL import Image as PILImage
item_id = generate_id()
fname = make_filename(item_id, "garment")
dest = LOCAL_DATA / UPLOADS_PREFIX / "garments" / fname
save_image(PILImage.open(local_path), dest)
local_path = str(dest)
new_counter = counter + 1
label = f"Garment {new_counter}"
new_pool = pool + [{"path": local_path, "label": label}]
pool_images = [g["path"] for g in new_pool]
return _gallery_images(UPLOADS_PREFIX, "garments"), new_pool, new_counter, pool_images, ""
portrait_upload.change(
on_portrait_upload,
inputs=[portrait_upload, garment_pool],
outputs=[portrait_gallery, selected_portrait, preview_portrait, portrait_upload],
).then(reset_detection, outputs=detection_reset_outputs)
garment_upload.change(
on_garment_upload,
inputs=[garment_upload, garment_pool, garment_counter],
outputs=[garment_gallery, garment_pool, garment_counter, garment_pool_gallery, garment_upload],
)
portrait_url_btn.click(
on_portrait_url,
inputs=[portrait_url_input, garment_pool],
outputs=[portrait_gallery, selected_portrait, preview_portrait, portrait_url_input],
).then(reset_detection, outputs=detection_reset_outputs)
garment_url_btn.click(
on_garment_url,
inputs=[garment_url_input, garment_pool, garment_counter],
outputs=[garment_gallery, garment_pool, garment_counter, garment_pool_gallery, garment_url_input],
)
def on_detect(portrait_path, pool):
if detect_fn is None or portrait_path is None:
raise gr.Error("Please select a portrait first.")
people = detect_fn(portrait_path)
n = len(people)
return f"Found {n} {'person' if n == 1 else 'people'}", people, n
detect_btn.click(
lambda: "Detecting people...",
outputs=[detect_status],
).then(
on_detect,
inputs=[selected_portrait, garment_pool],
outputs=[detect_status, people_gallery, num_detected],
)
def refresh_examples():
result_urls = _gallery_images(EXAMPLES_PREFIX, "results")
sets = []
for r in result_urls:
portrait, garments, result = _resolve_result_images(UPLOADS_PREFIX, r)
if portrait and garments:
sets.append({"portrait": portrait, "garments": garments, "result": result})
return sets
refresh_examples_btn.click(
refresh_examples,
outputs=[example_sets],
)
demo.load(
refresh_examples,
outputs=[example_sets],
)
# ---- Admin Tab ----
with gr.Tab("Admin - Manage Examples"):
admin_status = gr.Textbox(label="Status", interactive=False)
gr.Markdown("### Current Examples")
admin_examples_table = gr.Dataframe(
headers=["ID", "Result Filename"],
label="Examples",
interactive=False,
)
with gr.Row():
delete_id = gr.Textbox(label="Example ID to delete", scale=3)
delete_btn = gr.Button("Delete", variant="stop", scale=1)
def get_examples_table():
results = list_gallery_urls(EXAMPLES_PREFIX, "results")
rows = []
for r in results:
fname = Path(r).name
parsed = parse_result_filename(fname) or parse_multi_result_filename(fname)
rid = parsed["portrait_id"] if parsed else Path(fname).stem
rows.append([rid, fname])
return rows
def on_admin_delete(ex_id):
if not ex_id:
return "Please provide an ID.", get_examples_table()
delete_image_set(EXAMPLES_PREFIX, ex_id.strip())
return "Deleted.", get_examples_table()
delete_btn.click(
on_admin_delete,
inputs=[delete_id],
outputs=[admin_status, admin_examples_table],
)
# ---- Promote from Uploads ----
gr.Markdown("---")
gr.Markdown("## Promote from Uploads")
gr.Markdown("Select a result to promote. The matching portrait and garment are found automatically.")
promote_portrait = gr.State(value=None)
promote_garments = gr.State(value=[])
promote_result = gr.State(value=None)
promo_result_gallery = gr.Gallery(
value=_gallery_images(UPLOADS_PREFIX, "results"),
label="Results",
columns=4,
height=200,
allow_preview=False,
)
with gr.Row():
promo_preview_portrait = gr.Image(label="Portrait", interactive=False, height=150)
promo_preview_garments = gr.Gallery(label="Garments", columns=4, height=150, allow_preview=False)
promo_preview_result = gr.Image(label="Result", interactive=False, height=150)
promote_btn = gr.Button("Promote to Example", variant="primary")
promote_status = gr.Textbox(label="Status", interactive=False)
def _resolve_result_images(prefix, path):
"""Parse a result filename and resolve portrait + all garments."""
result_local = download_to_local(path)
fname = Path(result_local).name
# Try single-garment format
parsed = parse_result_filename(fname)
if not parsed:
parsed = parse_result_filename(Path(path).name)
if parsed:
try:
p_url = file_url(f"{prefix}/portraits/{make_filename(parsed['portrait_id'], 'portrait')}")
g_url = file_url(f"{prefix}/garments/{make_filename(parsed['garment_id'], 'garment')}")
return download_to_local(p_url), [download_to_local(g_url)], result_local
except Exception as e:
gr.Warning(f"Single-garment resolve failed for {fname}: {e}")
# Try multi-garment format
multi = parse_multi_result_filename(fname)
if not multi:
multi = parse_multi_result_filename(Path(path).name)
if multi:
gids = [gid for gid in multi["garment_ids"] if gid is not None]
if gids:
try:
p_url = file_url(f"{prefix}/portraits/{make_filename(multi['portrait_id'], 'portrait')}")
portrait_local = download_to_local(p_url)
garment_locals = []
for gid in gids:
g_url = file_url(f"{prefix}/garments/{make_filename(gid, 'garment')}")
garment_locals.append(download_to_local(g_url))
return portrait_local, garment_locals, result_local
except Exception as e:
gr.Warning(f"Multi-garment resolve failed for {fname} (portrait={multi['portrait_id']}, garments={gids}): {e}")
else:
gr.Warning(f"Could not parse result filename: {fname}")
return None, [], result_local
def on_result_select(evt: gr.SelectData):
path = evt.value["image"]["path"]
portrait_local, garment_locals, result_local = _resolve_result_images(UPLOADS_PREFIX, path)
if not portrait_local or not garment_locals:
gr.Warning(f"Could not find matching portrait/garment for: {Path(path).name}")
return portrait_local, garment_locals, result_local, portrait_local, garment_locals, result_local
promo_result_gallery.select(
on_result_select,
outputs=[promote_portrait, promote_garments, promote_result,
promo_preview_portrait, promo_preview_garments, promo_preview_result],
)
def on_promote(portrait_path, garment_paths, result_path):
if not result_path:
return "No result to promote.", get_examples_table()
name = promote_to_example(result_path)
return f"Promoted: {name}", get_examples_table()
promote_btn.click(
on_promote,
inputs=[promote_portrait, promote_garments, promote_result],
outputs=[promote_status, admin_examples_table],
)
refresh_promo_btn = gr.Button("Refresh Results", size="sm")
refresh_promo_btn.click(
lambda: _gallery_images(UPLOADS_PREFIX, "results"),
outputs=[promo_result_gallery],
)
demo.load(get_examples_table, outputs=[admin_examples_table])
return demo
if __name__ == "__main__":
def dummy_process(portrait, pool, num_detected, *assignment_args):
return Image.new("RGB", (512, 512), (200, 200, 200))
def dummy_detect(portrait_path):
return [Image.new("RGB", (100, 200), (255, 0, 0)), Image.new("RGB", (100, 200), (0, 255, 0))]
demo = build_demo(dummy_process, detect_fn=dummy_detect)
demo.launch()
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