Upload 3 files
Browse files- Dockerfile +21 -0
- app.py +225 -0
- requirements.txt +13 -0
Dockerfile
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# Ψ§Ψ³ΨͺΨ¨Ψ―Ω Ψ΅ΩΨ±Ψ© CUDA Ψ¨Ψ΅ΩΨ±Ψ© Python ΨΉΨ§Ψ―ΩΨ©
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FROM python:3.11-slim
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ENV DEBIAN_FRONTEND=noninteractive \
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PYTHONUNBUFFERED=1 \
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HF_HOME=/app/.cache/huggingface \
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TORCH_HOME=/app/.cache/torch
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RUN apt-get update && apt-get install -y --no-install-recommends \
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git curl \
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&& rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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COPY requirements.txt .
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RUN pip install --upgrade pip && pip install -r requirements.txt
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COPY app.py .
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EXPOSE 7860
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CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1", "--timeout-keep-alive", "300"]
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app.py
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"""
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DeepSeek-OCR-2 API β HuggingFace Spaces
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========================================
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POST /ocr
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- image: file upload (jpg/png)
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- x, y, w, h: optional crop box (pixels). If omitted β full image OCR.
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- mode: "free" | "markdown" (default: free)
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Returns: { "text": "...", "mode": "...", "cropped": bool }
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"""
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import os
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import io
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import base64
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import tempfile
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import logging
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from contextlib import asynccontextmanager
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from typing import Optional
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import torch
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from PIL import Image
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from fastapi import FastAPI, File, UploadFile, Form, HTTPException
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import JSONResponse
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from transformers import AutoModel, AutoTokenizer
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# βββ Logging ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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logging.basicConfig(level=logging.INFO)
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log = logging.getLogger("ocr-api")
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# βββ Model globals ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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MODEL_NAME = "deepseek-ai/DeepSeek-OCR-2"
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model = None
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tokenizer = None
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PROMPTS = {
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"markdown": "<image>\n<|grounding|>Convert the document to markdown. ",
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"free": "<image>\nFree OCR. ",
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}
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# βββ Lifespan: load model once at startup βββββββββββββββββββββββββββββββββββββ
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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global model, tokenizer
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log.info("Loading DeepSeek-OCR-2 β¦")
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tokenizer = AutoTokenizer.from_pretrained(
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MODEL_NAME, trust_remote_code=True
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)
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attn_impl = "eager"
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dtype = torch.float32
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model = AutoModel.from_pretrained(
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MODEL_NAME,
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_attn_implementation=attn_impl,
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trust_remote_code=True,
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use_safetensors=True,
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torch_dtype=dtype,
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)
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model.eval()
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# ΩΨ§ .cuda() ΨΉΩΩ CPU
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log.info("Model ready β (device=cpu)")
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yield
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del model, tokenizer
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# βββ App ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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app = FastAPI(
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title="DeepSeek-OCR-2 API",
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description="Extract text from image regions using DeepSeek-OCR-2",
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version="1.0.0",
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lifespan=lifespan,
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)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"], # restrict to your domain in production
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allow_methods=["POST", "GET"],
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allow_headers=["*"],
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)
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# βββ Health βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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@app.get("/")
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async def root():
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return {
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"status": "ok",
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"model": MODEL_NAME,
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"device": "cuda" if torch.cuda.is_available() else "cpu",
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"endpoints": {
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"POST /ocr": "Extract text from image / crop region",
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"POST /ocr/base64": "Same but image sent as base64 JSON",
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"GET /health": "Health check",
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},
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}
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@app.get("/health")
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async def health():
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return {"status": "ok", "model_loaded": model is not None}
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# βββ Helper βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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def run_ocr(pil_image: Image.Image, mode: str = "free") -> str:
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"""Run model inference on a PIL image, return text string."""
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prompt = PROMPTS.get(mode, PROMPTS["free"])
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with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as tmp:
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tmp_path = tmp.name
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pil_image.save(tmp_path, format="PNG")
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with tempfile.TemporaryDirectory() as out_dir:
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result = model.infer(
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tokenizer,
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prompt=prompt,
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image_file=tmp_path,
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output_path=out_dir,
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base_size=1024,
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image_size=768,
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crop_mode=True,
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save_results=False,
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)
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os.unlink(tmp_path)
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# result may be a string or a dict; normalise
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if isinstance(result, dict):
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return result.get("text", str(result))
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return str(result) if result else ""
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def crop_image(img: Image.Image, x: int, y: int, w: int, h: int) -> Image.Image:
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"""Crop image; clamp to image bounds."""
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iw, ih = img.size
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x1 = max(0, x)
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y1 = max(0, y)
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x2 = min(iw, x + w)
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y2 = min(ih, y + h)
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if x2 <= x1 or y2 <= y1:
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raise ValueError(f"Invalid crop box: x={x} y={y} w={w} h={h} (image {iw}Γ{ih})")
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return img.crop((x1, y1, x2, y2))
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# βββ Main endpoint: file upload βββββββββββββββββββββββββββββββββββββββββββββββ
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@app.post("/ocr")
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async def ocr_file(
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image: UploadFile = File(..., description="Image file (JPEG/PNG/WEBP)"),
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x: Optional[int] = Form(None, description="Crop left (px)"),
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y: Optional[int] = Form(None, description="Crop top (px)"),
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w: Optional[int] = Form(None, description="Crop width (px)"),
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h: Optional[int] = Form(None, description="Crop height (px)"),
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mode: str = Form("free", description="'free' or 'markdown'"),
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):
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if model is None:
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raise HTTPException(503, "Model not loaded yet β try again in a moment")
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# read image
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data = await image.read()
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try:
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pil_img = Image.open(io.BytesIO(data)).convert("RGB")
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except Exception as e:
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raise HTTPException(400, f"Cannot decode image: {e}")
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cropped = False
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# crop if bbox provided
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if all(v is not None for v in [x, y, w, h]):
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try:
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pil_img = crop_image(pil_img, x, y, w, h)
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cropped = True
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except ValueError as e:
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raise HTTPException(400, str(e))
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try:
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text = run_ocr(pil_img, mode=mode)
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except Exception as e:
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log.exception("OCR inference error")
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raise HTTPException(500, f"OCR failed: {e}")
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return JSONResponse({
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"text": text,
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"mode": mode,
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"cropped": cropped,
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"bbox": {"x": x, "y": y, "w": w, "h": h} if cropped else None,
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})
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# βββ Alternative endpoint: base64 JSON body βββββββββββββββββββββββββββββββββββ
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from pydantic import BaseModel
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class OCRRequest(BaseModel):
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image_b64: str # base64-encoded image bytes
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x: Optional[int] = None
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y: Optional[int] = None
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w: Optional[int] = None
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h: Optional[int] = None
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mode: str = "free"
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@app.post("/ocr/base64")
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async def ocr_base64(req: OCRRequest):
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if model is None:
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raise HTTPException(503, "Model not loaded yet")
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try:
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raw = base64.b64decode(req.image_b64)
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pil_img = Image.open(io.BytesIO(raw)).convert("RGB")
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except Exception as e:
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raise HTTPException(400, f"Cannot decode base64 image: {e}")
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cropped = False
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if all(v is not None for v in [req.x, req.y, req.w, req.h]):
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try:
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pil_img = crop_image(pil_img, req.x, req.y, req.w, req.h)
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cropped = True
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except ValueError as e:
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raise HTTPException(400, str(e))
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try:
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text = run_ocr(pil_img, mode=req.mode)
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except Exception as e:
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log.exception("OCR inference error")
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raise HTTPException(500, f"OCR failed: {e}")
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return JSONResponse({
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"text": text,
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"mode": req.mode,
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"cropped": cropped,
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"bbox": {"x": req.x, "y": req.y, "w": req.w, "h": req.h} if cropped else None,
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})
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requirements.txt
ADDED
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fastapi>=0.111.0
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uvicorn[standard]>=0.29.0
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python-multipart>=0.0.9
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| 4 |
+
pillow>=10.0.0
|
| 5 |
+
torch>=2.6.0
|
| 6 |
+
transformers==4.46.3
|
| 7 |
+
tokenizers==0.20.3
|
| 8 |
+
einops
|
| 9 |
+
addict
|
| 10 |
+
easydict
|
| 11 |
+
pydantic>=2.0.0
|
| 12 |
+
huggingface_hub>=0.23.0
|
| 13 |
+
accelerate>=0.30.0
|