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Implement VIN-specific OCR extraction with optimized preprocessing: - Add POST /extract/vin endpoint for VIN extraction - VIN preprocessor: CLAHE, deskew, denoise, adaptive threshold - VIN validator: check digit validation, OCR error correction (I->1, O->0) - VIN extractor: PSM modes 6/7/8, character whitelist, alternatives - Response includes confidence, bounding box, and alternatives - Unit tests for validator and preprocessor - Integration tests for VIN extraction endpoint Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
63 lines
1.6 KiB
Python
63 lines
1.6 KiB
Python
"""OCR Service FastAPI Application."""
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import logging
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from contextlib import asynccontextmanager
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from typing import AsyncIterator
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from fastapi import FastAPI
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from app.config import settings
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from app.routers import extract_router, jobs_router
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from app.services import job_queue
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# Configure logging
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logging.basicConfig(
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level=getattr(logging, settings.log_level.upper(), logging.INFO),
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format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
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)
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logger = logging.getLogger(__name__)
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@asynccontextmanager
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async def lifespan(app: FastAPI) -> AsyncIterator[None]:
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"""Application lifespan handler for startup/shutdown."""
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# Startup
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logger.info("OCR service starting up")
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yield
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# Shutdown
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logger.info("OCR service shutting down")
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await job_queue.close()
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app = FastAPI(
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title="MotoVaultPro OCR Service",
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description="OCR processing service for vehicle documents",
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version="1.0.0",
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lifespan=lifespan,
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)
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# Include routers
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app.include_router(extract_router)
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app.include_router(jobs_router)
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@app.get("/health")
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async def health_check() -> dict:
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"""Health check endpoint for container orchestration."""
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return {"status": "healthy"}
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@app.get("/")
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async def root() -> dict:
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"""Root endpoint with service information."""
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return {
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"service": "mvp-ocr",
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"version": "1.0.0",
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"log_level": settings.log_level,
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"endpoints": [
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"POST /extract - Synchronous OCR extraction",
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"POST /extract/vin - VIN-specific extraction with validation",
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"POST /jobs - Submit async OCR job",
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"GET /jobs/{job_id} - Get async job status",
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],
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}
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