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Getting started ​

1. Choose an installer ​

Lumina ships two Windows installers — pick the one that fits your hardware:

  • DirectML installer — works on any DirectX 12 GPU and falls back to CPU. The universal choice.
  • CUDA installer — NVIDIA-only, but noticeably faster on RTX/GTX cards.

DirectML runs on any DirectX 12 GPU and falls back to CPU. CUDA is NVIDIA-only but noticeably faster on RTX/GTX cards. Missing an asset? View the full release on GitHub.

Requirements

  • 64-bit Windows (10 or newer is recommended)
  • A GPU is optional — Lumina runs on CPU alone
  • CUDA builds need an NVIDIA GPU with a reasonably recent driver

2. Install and launch ​

Run the installer and follow the steps, then launch Lumina. The app starts a small local backend (FastAPI + ONNX Runtime) automatically — no separate server or Python installation is required.

3. Download models ​

Models are not bundled with the installer. Open Settings → Models and download the models you need. The app groups them by stage:

StageRecommended defaultNotes
Text detectionrtdetrApache-2.0 licensed; rfdetr_seg adds segmentation masks but is restricted to academic, non-commercial use
OCRbaberu (multilingual) or manga-ocr (Japanese)Choose based on your source language
Inpaintinglama_mangaManga fine-tune; lama is a CPU-only general fallback
AuxanglenetTiny (~2 MB) model downloaded automatically; measures text slant for typesetting

Model files can also be placed manually in your models directory — see Managing models.

4. Translate a page ​

  1. Click Import (or drag images in) to add your first page.
  2. Open the page and run the stages in order — detection → OCR → translation → inpainting → typesetting. Each stage is a button in the pipeline panel.
  3. Translation needs a configured provider and API key — see Translation settings before you reach that step.
  4. When you're happy with the result, export the page as PNG or JPG from the Export dialog, or save the whole project as a .lmi file.

For a detailed explanation of each stage and how to edit its results, read the Translation workflow guide.