feat: Agregar soporte OCR con Tesseract para PDFs escaneados
- Integrar Tesseract OCR para leer PDFs escaneados automáticamente - Detectar automáticamente si el PDF tiene texto o requiere OCR - Agregar servicio ocr_service.py con funciones de OCR - Actualizar Dockerfile con tesseract-ocr, tesseract-ocr-spa y poppler-utils - Agregar variables de configuración OCR (OCR_ENABLED, OCR_LANGUAGE, OCR_DPI, OCR_TIMEOUT) - Crear endpoint de debug para ver texto extraído (/api/v1/debug/extract-text) - Agregar scripts de instalación y prueba (install_ocr.ps1, test_ocr.py, debug_pdf.ps1) - Documentación completa (OCR_SETUP.md, DOCKER_OCR.md, COMO_PROBAR.md) - Actualizar docker-compose.yml con variables de entorno OCR - Modificar pdf_text.py para usar OCR cuando sea necesario - Actualizar requirements.txt con pytesseract, Pillow, pdf2image
This commit is contained in:
Ernesto Herrera
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install_ocr.ps1
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149
install_ocr.ps1
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# Script de Instalación Rápida de OCR
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# Para ejecutar: .\install_ocr.ps1
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host "Instalación de OCR para MVE Micro Docs" -ForegroundColor Cyan
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host ""
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# Verificar si tesseract ya está instalado
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Write-Host "Verificando si Tesseract está instalado..." -ForegroundColor Yellow
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$tesseractInstalled = $false
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try {
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$version = tesseract --version 2>&1
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if ($version -match "tesseract") {
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Write-Host "✓ Tesseract ya está instalado:" -ForegroundColor Green
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Write-Host $version[0] -ForegroundColor Gray
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$tesseractInstalled = $true
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}
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} catch {
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Write-Host "✗ Tesseract no está instalado" -ForegroundColor Red
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}
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if (-not $tesseractInstalled) {
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Write-Host ""
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Write-Host "Para instalar Tesseract OCR:" -ForegroundColor Yellow
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Write-Host "1. Visita: https://github.com/UB-Mannheim/tesseract/wiki" -ForegroundColor White
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Write-Host "2. Descarga tesseract-ocr-w64-setup-5.3.x.exe" -ForegroundColor White
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Write-Host "3. Durante la instalación, MARCA la opción 'Spanish language data'" -ForegroundColor White
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Write-Host "4. Agrega C:\Program Files\Tesseract-OCR al PATH del sistema" -ForegroundColor White
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Write-Host "5. Reinicia PowerShell y ejecuta este script nuevamente" -ForegroundColor White
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Write-Host ""
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$openBrowser = Read-Host "¿Abrir el sitio de descarga en el navegador? (S/N)"
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if ($openBrowser -eq "S" -or $openBrowser -eq "s") {
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Start-Process "https://github.com/UB-Mannheim/tesseract/wiki"
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}
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Write-Host ""
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Write-Host "Presiona cualquier tecla para continuar después de instalar Tesseract..."
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$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
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exit
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}
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# Verificar idioma español
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Write-Host ""
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Write-Host "Verificando idioma español..." -ForegroundColor Yellow
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$languages = tesseract --list-langs 2>&1
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if ($languages -match "spa") {
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Write-Host "✓ Paquete de idioma español (spa) instalado" -ForegroundColor Green
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} else {
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Write-Host "✗ Paquete de idioma español NO instalado" -ForegroundColor Red
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Write-Host "Reinstala Tesseract y marca 'Spanish language data' durante la instalación" -ForegroundColor Yellow
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}
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# Verificar poppler
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Write-Host ""
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Write-Host "Verificando poppler (requerido para convertir PDF a imágenes)..." -ForegroundColor Yellow
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$popplerInstalled = $false
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try {
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$pdfToText = Get-Command pdftoppm -ErrorAction SilentlyContinue
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if ($pdfToText) {
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Write-Host "✓ Poppler ya está instalado" -ForegroundColor Green
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$popplerInstalled = $true
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}
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} catch {}
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if (-not $popplerInstalled) {
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Write-Host "✗ Poppler no está instalado" -ForegroundColor Red
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Write-Host ""
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Write-Host "Para instalar Poppler:" -ForegroundColor Yellow
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Write-Host "1. Descarga: https://github.com/oschwartz10612/poppler-windows/releases/latest" -ForegroundColor White
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Write-Host "2. Extrae el ZIP a C:\poppler" -ForegroundColor White
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Write-Host "3. Agrega C:\poppler\Library\bin al PATH del sistema" -ForegroundColor White
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Write-Host ""
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$openBrowser = Read-Host "¿Abrir el sitio de descarga en el navegador? (S/N)"
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if ($openBrowser -eq "S" -or $openBrowser -eq "s") {
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Start-Process "https://github.com/oschwartz10612/poppler-windows/releases/latest"
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}
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}
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# Instalar dependencias Python
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Write-Host ""
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Write-Host "Instalando dependencias Python..." -ForegroundColor Yellow
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try {
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& pip install pytesseract Pillow pdf2image
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Write-Host "✓ Dependencias Python instaladas correctamente" -ForegroundColor Green
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} catch {
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Write-Host "✗ Error al instalar dependencias Python" -ForegroundColor Red
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Write-Host $_.Exception.Message -ForegroundColor Red
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}
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# Verificar archivo .env
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Write-Host ""
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Write-Host "Verificando configuración..." -ForegroundColor Yellow
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if (Test-Path ".env") {
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Write-Host "✓ Archivo .env existe" -ForegroundColor Green
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# Verificar si tiene las variables OCR
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$envContent = Get-Content ".env" -Raw
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if ($envContent -notmatch "OCR_ENABLED") {
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Write-Host "! Agregando variables OCR al archivo .env" -ForegroundColor Yellow
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$ocrConfig = @"
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# OCR Settings
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OCR_ENABLED=true
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OCR_LANGUAGE=spa
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OCR_DPI=300
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OCR_TIMEOUT=300
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"@
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Add-Content ".env" $ocrConfig
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Write-Host "✓ Variables OCR agregadas" -ForegroundColor Green
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} else {
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Write-Host "✓ Variables OCR ya configuradas" -ForegroundColor Green
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}
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} else {
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Write-Host "! Archivo .env no existe, copiando desde .env.example" -ForegroundColor Yellow
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Copy-Item ".env.example" ".env"
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Write-Host "✓ Archivo .env creado - edítalo con tus credenciales" -ForegroundColor Green
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}
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# Resumen final
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Write-Host ""
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Write-Host "========================================" -ForegroundColor Cyan
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Write-Host "Resumen de Instalación" -ForegroundColor Cyan
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Write-Host "========================================" -ForegroundColor Cyan
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$allGood = $tesseractInstalled -and ($languages -match "spa")
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if ($allGood) {
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Write-Host "✓ ¡Todo listo para usar OCR!" -ForegroundColor Green
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Write-Host ""
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Write-Host "Para probar:" -ForegroundColor White
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Write-Host " python -c `"import pytesseract; print('OCR Ready!')`"" -ForegroundColor Gray
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Write-Host ""
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Write-Host "Inicia tu servidor:" -ForegroundColor White
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Write-Host " uvicorn app.main:app --reload" -ForegroundColor Gray
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} else {
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Write-Host "⚠ Instalación incompleta" -ForegroundColor Yellow
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Write-Host ""
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Write-Host "Componentes faltantes:" -ForegroundColor Yellow
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if (-not $tesseractInstalled) { Write-Host " - Tesseract OCR" -ForegroundColor Red }
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if ($languages -notmatch "spa") { Write-Host " - Paquete de idioma español" -ForegroundColor Red }
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if (-not $popplerInstalled) { Write-Host " - Poppler (opcional pero recomendado)" -ForegroundColor Yellow }
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Write-Host ""
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Write-Host "Consulta OCR_SETUP.md para instrucciones detalladas" -ForegroundColor White
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}
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Write-Host ""
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Write-Host "Presiona cualquier tecla para salir..."
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$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
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