Update app.py
Browse files
app.py
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# app.py
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import os
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import io
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import
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import random
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from
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from typing import Tuple
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import gradio as gr
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import numpy as np
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from PIL import Image, ImageOps, ImageFilter
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import torch
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from
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# Config
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#
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MODEL_ID = os.getenv("MODEL_ID", "
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HF_TOKEN = os.getenv("HF_TOKEN", None)
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DEFAULT_PROMPT = "extend the image naturally"
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DEFAULT_NEG = (
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)
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#
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# =========================
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# Helpers
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# =========================
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def to_pil(img) -> Image.Image:
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if isinstance(img, Image.Image):
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return img.convert("RGB")
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return Image.fromarray(img).convert("RGB")
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def make_square_with_border(im: Image.Image, border_px: int) -> Tuple[Image.Image, Image.Image]:
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"""Делаем квадратный холст и маску (белым — где дорисовывать)."""
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w, h = im.size
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side = max(w, h)
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side = side + border_px * 2
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canvas = Image.new("RGB", (side, side), (128, 128, 128))
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# Центрируем оригинал
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ox = (side - w)//2
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oy = (side - h)//2
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canvas.paste(im, (ox, oy))
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# Маска: чёрный (0) — оригинал, белый (255) — где рисуем
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mask = Image.new("L", (side, side), color=255)
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mask.paste(0, (ox, oy, ox + w, oy + h))
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return canvas, mask
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def fit_to_safe_max(w: int, h: int, safe_max: int) -> Tuple[int, int, float]:
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"""Укладываемся в SAFE_MAX, возвращаем целевые размеры и масштаб."""
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scale = 1.0
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if max(w, h) > safe_max:
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scale = safe_max / float(max(w, h))
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w = int(round(w * scale / 8.0)) * 8
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h = int(round(h * scale / 8.0)) * 8
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else:
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# SD любит кратность 8
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w = int(round(w / 8.0)) * 8
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h = int(round(h / 8.0)) * 8
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return w, h, scale
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def upscale_back(img: Image.Image, scale: float, target_wh: Tuple[int, int]) -> Image.Image:
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"""Возвращаемся к исходному (большему) размеру после генерации в сниж. разрешении."""
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if scale == 1.0:
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return img
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tw, th = target_wh
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return img.resize((tw, th), Image.LANCZOS)
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def paste_center_preserving(original: Image.Image, outpaint: Image.Image, feather: int = FEATHER_PX) -> Image.Image:
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"""Кладём исходник поверх результата (чтобы он остался чётким), мягко смешивая границы."""
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w, h = outpaint.size
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ow, oh = original.size
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ox = (w - ow)//2
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oy = (h - oh)//2
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# делаем маску с мягкими краями
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alpha = Image.new("L", (ow, oh), color=255)
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if feather > 0:
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# равномерное размывание по краю
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alpha = ImageOps.expand(alpha, border=feather, fill=0)
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alpha = alpha.filter(ImageFilter.GaussianBlur(radius=feather/2))
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alpha = alpha.crop((feather, feather, feather + ow, feather + oh))
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base = outpaint.convert("RGBA")
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top = original.convert("RGBA")
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top.putalpha(alpha)
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base.alpha_composite(top, (ox, oy))
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return base.convert("RGB")
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@dataclass
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class GenParams:
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prompt: str
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negative_prompt: str
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steps: int
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guidance: float
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seed: int
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# =========================
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# Pipeline
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# =========================
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device = "cuda" if torch.cuda.is_available() else "cpu"
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dtype = torch.float16 if (device == "cuda") else torch.float32
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pipe = StableDiffusionInpaintPipeline.from_pretrained(
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MODEL_ID,
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torch_dtype=
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)
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pipe = pipe.to(
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pipe.safety_checker = None # без блюра
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pipe.enable_attention_slicing("auto")
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#
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img: Image.Image,
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border_px: int,
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).images[0]
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w, h
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# =========================
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# Gradio UI
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#
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with gr.Blocks(
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with gr.Row():
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with gr.Column(
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border = gr.Slider(0,
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with gr.Column(
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if __name__ == "__main__":
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demo.launch(server_name="0.0.0.0", server_port=7860, ssr_mode=True)
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# app.py
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import os
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import io
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import time
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import random
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from typing import Tuple, Optional
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import torch
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from PIL import Image, ImageDraw, ImageFile, ImageFilter
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ImageFile.LOAD_TRUNCATED_IMAGES = True
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import gradio as gr
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from diffusers import StableDiffusionXLInpaintPipeline
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# -------------------------
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# Config
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# -------------------------
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MODEL_ID = os.getenv("MODEL_ID", "stabilityai/stable-diffusion-xl-1.0-inpainting-0.1")
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HF_TOKEN = os.getenv("HF_TOKEN", None) # добавь в Settings, если репо gated
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DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
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DTYPE = torch.float16 if DEVICE == "cuda" else torch.float32
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DEFAULT_PROMPT = "extend the image naturally, seamless realistic continuation, preserve original center"
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DEFAULT_NEG = (
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"text, watermark, signature, logo, lowres, blurry, artifacts, deformed, distorted, "
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"oversaturated, extra limbs, frames, borders, bad perspective"
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)
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# -------------------------
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# Pipeline (SDXL Inpaint)
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# -------------------------
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pipe = StableDiffusionXLInpaintPipeline.from_pretrained(
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MODEL_ID,
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torch_dtype=DTYPE,
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use_safetensors=True,
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token=HF_TOKEN, # если None — ок; если задана — пройдёт с токеном
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)
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pipe = pipe.to(DEVICE)
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# Без xformers
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# pipe.enable_xformers_memory_efficient_attention() # НЕ ВКЛЮЧАЕМ
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# -------------------------
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# Helpers
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# -------------------------
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def center_paste_coords(
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base_w: int, base_h: int, obj_w: int, obj_h: int
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) -> Tuple[int, int]:
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"""Вычисляет координаты для центрирования."""
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return ( (base_w - obj_w) // 2, (base_h - obj_h) // 2 )
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def make_square_with_border(
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img: Image.Image,
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border_px: int,
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bg=(128, 128, 128)
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) -> Tuple[Image.Image, Image.Image, Tuple[int, int, int, int]]:
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"""
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Создаёт квадратный холст (max(w,h)+2*border), кладёт исходник по центру.
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Возвращает:
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padded_image (RGB), mask (L, 0 центр/255 поля), bbox исходника (x,y,w,h).
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"""
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img = img.convert("RGB")
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w, h = img.size
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side = max(w, h) + 2 * border_px
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canvas = Image.new("RGB", (side, side), bg)
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x, y = center_paste_coords(side, side, w, h)
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canvas.paste(img, (x, y))
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# Маска: чёрный (0) = защитить (центр), белый (255) = дорисовать (поля)
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mask = Image.new("L", (side, side), 255)
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draw = ImageDraw.Draw(mask)
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draw.rectangle([x, y, x + w - 1, y + h - 1], fill=0)
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return canvas, mask, (x, y, w, h)
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def feather_mask(mask: Image.Image, feather_px: int) -> Image.Image:
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"""Смягчаем границу маски GaussianBlur-ом для более естественного склеивания."""
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if feather_px <= 0:
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return mask
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return mask.filter(ImageFilter.GaussianBlur(radius=feather_px))
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def overlay_original_center(
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out: Image.Image, orig: Image.Image, bbox: Tuple[int, int, int, int], feather_px: int
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) -> Image.Image:
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"""
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Поверх результата накладываем оригинал (чтобы центр гарантированно остался без изменений).
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Делаем мягкую маску по краям вставки, чтобы не было резкого стыка.
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"""
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out = out.convert("RGB")
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img = orig.convert("RGB")
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x, y, w, h = bbox
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# Маска для вставки: белый = виден оригинал, чёрный = виден out; мягкий край
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m = Image.new("L", (out.width, out.height), 0)
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draw = ImageDraw.Draw(m)
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draw.rectangle([x, y, x + w - 1, y + h - 1], fill=255)
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if feather_px > 0:
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m = m.filter(ImageFilter.GaussianBlur(radius=feather_px))
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out.paste(img, (x, y), m.crop((x, y, x + w, y + h)))
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+
return out
|
| 104 |
+
|
| 105 |
+
def format_dims(w: int, h: int) -> str:
|
| 106 |
+
return f"{w}×{h}px"
|
| 107 |
+
|
| 108 |
+
# -------------------------
|
| 109 |
+
# Core outpaint
|
| 110 |
+
# -------------------------
|
| 111 |
+
@torch.inference_mode()
|
| 112 |
+
def outpaint_generate(
|
| 113 |
+
image: Image.Image,
|
| 114 |
+
border_px: int,
|
| 115 |
+
prompt: str,
|
| 116 |
+
neg_prompt: str,
|
| 117 |
+
steps: int,
|
| 118 |
+
guidance: float,
|
| 119 |
+
seed: Optional[int],
|
| 120 |
+
feather_px: int,
|
| 121 |
+
) -> Tuple[Image.Image, str]:
|
| 122 |
+
"""
|
| 123 |
+
Делает аутпейнтинг с SDXL Inpaint:
|
| 124 |
+
- готовит квадратный канвас и маску (белые поля = дорисовка),
|
| 125 |
+
- запускает пайплайн,
|
| 126 |
+
- мягко вставляет исходник по центру поверх результата,
|
| 127 |
+
- сохраняет PNG полноразмерный.
|
| 128 |
+
"""
|
| 129 |
+
if not prompt or not prompt.strip():
|
| 130 |
+
prompt = DEFAULT_PROMPT
|
| 131 |
+
if not neg_prompt or not neg_prompt.strip():
|
| 132 |
+
neg_prompt = DEFAULT_NEG
|
| 133 |
+
|
| 134 |
+
# 1) Квадрат + маска
|
| 135 |
+
padded, mask, bbox = make_square_with_border(image, border_px, bg=(128, 128, 128))
|
| 136 |
+
mask = feather_mask(mask, max(0, feather_px))
|
| 137 |
+
|
| 138 |
+
# 2) Генератор по seed
|
| 139 |
+
if seed in (None, -1, ""):
|
| 140 |
+
seed = random.randint(0, 2**31 - 1)
|
| 141 |
+
g = torch.Generator(device=DEVICE)
|
| 142 |
+
g.manual_seed(int(seed))
|
| 143 |
+
|
| 144 |
+
# 3) SDXL Inpaint
|
| 145 |
+
# В SDXL-inpaint ничего дополнительно передавать не нужно (никаких added_cond_kwargs).
|
| 146 |
+
result = pipe(
|
| 147 |
+
prompt=prompt,
|
| 148 |
+
negative_prompt=neg_prompt,
|
| 149 |
+
image=padded, # PIL RGB
|
| 150 |
+
mask_image=mask, # PIL L (255 = дорисовать; 0 = сохраняем)
|
| 151 |
+
num_inference_steps=int(steps),
|
| 152 |
+
guidance_scale=float(guidance),
|
| 153 |
+
generator=g,
|
| 154 |
).images[0]
|
| 155 |
|
| 156 |
+
# 4) Поверх — снова центр, чтоб наверняка был 1:1
|
| 157 |
+
final = overlay_original_center(result, image, bbox, feather_px=max(0, feather_px // 2))
|
| 158 |
+
|
| 159 |
+
# 5) Сохранение PNG в полном размере
|
| 160 |
+
outdir = "outputs"
|
| 161 |
+
os.makedirs(outdir, exist_ok=True)
|
| 162 |
+
side = final.width # квадрат
|
| 163 |
+
fname = f"outpaint_{side}x{side}_{seed}.png"
|
| 164 |
+
path = os.path.join(outdir, fname)
|
| 165 |
+
final.save(path, "PNG")
|
| 166 |
+
|
| 167 |
+
return final, path
|
| 168 |
+
|
| 169 |
+
# -------------------------
|
| 170 |
+
# Preview: рисуем чёрную рамку в том месте, где будет дорисовка
|
| 171 |
+
# -------------------------
|
| 172 |
+
def make_preview(image: Image.Image, border_px: int) -> Tuple[Image.Image, str, str]:
|
| 173 |
+
if image is None:
|
| 174 |
+
return None, "", ""
|
| 175 |
+
|
| 176 |
+
w, h = image.size
|
| 177 |
+
side = max(w, h) + 2 * int(border_px)
|
| 178 |
+
padded = Image.new("RGB", (side, side), (240, 240, 240))
|
| 179 |
+
x, y = center_paste_coords(side, side, w, h)
|
| 180 |
+
padded.paste(image.convert("RGB"), (x, y))
|
| 181 |
+
|
| 182 |
+
# Рамка места дорисовки
|
| 183 |
+
draw = ImageDraw.Draw(padded)
|
| 184 |
+
# Внутренняя окантовка исходника (покажем контур)
|
| 185 |
+
draw.rectangle([x, y, x + w - 1, y + h - 1], outline=(0, 0, 0), width=2)
|
| 186 |
+
|
| 187 |
+
return padded, f"Original: {format_dims(w, h)}", f"Result: {format_dims(side, side)}"
|
| 188 |
+
|
| 189 |
+
# -------------------------
|
|
|
|
|
|
|
| 190 |
# Gradio UI
|
| 191 |
+
# -------------------------
|
| 192 |
+
with gr.Blocks(css="""
|
| 193 |
+
#dims {font-size: 14px; opacity: 0.8}
|
| 194 |
+
""") as demo:
|
| 195 |
+
gr.Markdown("## Qwen Outpaint (SDXL Inpaint)\nЗагрузите изображение, выберите рамку (px) — модель дорисует края естественно. Центр сохраняется без изменений.")
|
| 196 |
|
| 197 |
with gr.Row():
|
| 198 |
+
with gr.Column():
|
| 199 |
+
image_in = gr.Image(label="Input image", type="pil")
|
| 200 |
+
border = gr.Slider(0, 2048, value=256, step=8, label="Padding (px) around (square)")
|
| 201 |
+
feather = gr.Slider(0, 64, value=16, step=1, label="Feather border (px)")
|
| 202 |
+
prompt = gr.Textbox(label="Prompt", value=DEFAULT_PROMPT)
|
| 203 |
+
neg_prompt = gr.Textbox(label="Negative prompt", value=DEFAULT_NEG)
|
| 204 |
+
steps = gr.Slider(10, 60, value=30, step=1, label="Steps")
|
| 205 |
+
guidance = gr.Slider(1.0, 12.0, value=5.5, step=0.1, label="CFG (guidance)")
|
| 206 |
+
seed = gr.Number(value=-1, precision=0, label="Seed (-1 random)")
|
| 207 |
+
run_btn = gr.Button("Generate", variant="primary")
|
| 208 |
+
|
| 209 |
+
gr.Markdown('<div id="dims"></div>')
|
| 210 |
+
dims_orig = gr.Markdown()
|
| 211 |
+
dims_final = gr.Markdown()
|
| 212 |
+
|
| 213 |
+
with gr.Column():
|
| 214 |
+
preview = gr.Image(label="Preview (where outpaint will happen)", interactive=False)
|
| 215 |
+
result = gr.Image(label="Result", interactive=False)
|
| 216 |
+
file_out = gr.File(label="Download PNG")
|
| 217 |
+
|
| 218 |
+
# Preview update
|
| 219 |
+
def _update_preview(img, b):
|
| 220 |
+
if img is None:
|
| 221 |
+
return None, "", ""
|
| 222 |
+
p, d1, d2 = make_preview(img, int(b))
|
| 223 |
+
return p, f"<span id='dims'>{d1}</span>", f"<span id='dims'>{d2}</span>"
|
| 224 |
+
|
| 225 |
+
image_in.change(_update_preview, [image_in, border], [preview, dims_orig, dims_final])
|
| 226 |
+
border.release(_update_preview, [image_in, border], [preview, dims_orig, dims_final])
|
| 227 |
+
|
| 228 |
+
# Generate
|
| 229 |
+
def go(img, b, fthr, prm, nprm, stp, cfg, sd):
|
| 230 |
+
if img is None:
|
| 231 |
+
raise gr.Error("Загрузите изображение.")
|
| 232 |
+
final, path = outpaint_generate(
|
| 233 |
+
image=img,
|
| 234 |
+
border_px=int(b),
|
| 235 |
+
prompt=(prm or DEFAULT_PROMPT),
|
| 236 |
+
neg_prompt=(nprm or DEFAULT_NEG),
|
| 237 |
+
steps=int(stp),
|
| 238 |
+
guidance=float(cfg),
|
| 239 |
+
seed=int(sd) if sd is not None else -1,
|
| 240 |
+
feather_px=int(fthr),
|
| 241 |
+
)
|
| 242 |
+
return final, path
|
| 243 |
+
|
| 244 |
+
run_btn.click(
|
| 245 |
+
go,
|
| 246 |
+
[image_in, border, feather, prompt, neg_prompt, steps, guidance, seed],
|
| 247 |
+
[result, file_out]
|
| 248 |
+
)
|
| 249 |
+
|
| 250 |
if __name__ == "__main__":
|
| 251 |
demo.launch(server_name="0.0.0.0", server_port=7860, ssr_mode=True)
|