feat(engines): offline AI image upscaling and super-resolution up to 4x (NCNN)

THIRD-PARTY-NOTICES.md

@@ -88,6 +88,16 @@ Downloaded from their official release pages when the user chooses to install th
 | Tesseract language data (tessdata_fast 4.1.0), downloaded per language when used | Apache-2.0 | https://github.com/tesseract-ocr/tessdata_fast |
 | whisper.cpp (whisper-cli.exe Windows build) | MIT | https://github.com/ggml-org/whisper.cpp |
 | ggml Whisper base model (`ggml-base.bin`) | MIT | https://huggingface.co/ggerganov/whisper.cpp |
+| upscayl-bin (AI super-resolution binary) | AGPL-3.0 | https://github.com/upscayl/upscayl-ncnn |
+| NMKD Siax (`4x_NMKD-Siax_200k`, nmkd) | WTFPL | https://github.com/upscayl/custom-models |
+| NMKD Superscale (`4x_NMKD-Superscale-SP_178000_G`, nmkd) | WTFPL | https://github.com/upscayl/custom-models |
+| RealESRGAN General (`RealESRGAN_General_x4_v3`, Xintao Wang) | BSD-3-Clause | https://github.com/xinntao/Real-ESRGAN |
+| RealESRGAN General WDN (`RealESRGAN_General_WDN_x4_v3`, Xintao Wang) | BSD-3-Clause | https://github.com/xinntao/Real-ESRGAN |
+| 4xLSDIR (`4xLSDIR`, Philip Hofmann / Phhofm) | CC-BY-4.0 | https://github.com/upscayl/custom-models, https://openmodeldb.info/models/4x-LSDIR |
+| 4xLSDIRplusC (`4xLSDIRplusC`, Philip Hofmann / Phhofm) | CC-BY-4.0 | https://github.com/upscayl/custom-models, https://openmodeldb.info/models/4x-LSDIRplusC |
+| 4xLSDIRCompactC3 (`4xLSDIRCompactC3`, Philip Hofmann / Phhofm) | CC-BY-4.0 | https://github.com/upscayl/custom-models, https://openmodeldb.info/models/4x-LSDIRCompactC3 |
+| 4xNomos8kSC (`4xNomos8kSC`, Philip Hofmann / Phhofm) | CC-BY-4.0 | https://github.com/upscayl/custom-models, https://openmodeldb.info/models/4x-Nomos8kSC |
+| 4xHFA2k (`4xHFA2k`, Philip Hofmann / Phhofm) | CC-BY-4.0 | https://github.com/upscayl/custom-models, https://openmodeldb.info/models/4x-HFA2k |
 
 These programs run as separate processes. Their source code is available from the linked projects.
 

docs/ENGINES.md

@@ -1911,3 +1911,17 @@ Filee translates documents, books, and text files locally using a local Ollama i
   - **Documents & E-books**: DOCX, HWPX, EPUB, KEPUB, FB2, HTMLZ, TXTZ, MD, TXT, and HTML are translated in place, preserving document structure, headings, bold/italic runs, tables, lists, images, and notes.
   - **Kindle e-books**: MOBI, AZW, AZW3, and PRC formats are translated via EPUB, and can then be routed to any supported target format.
   - **PDF target**: When a document is translated with PDF as the target format, the route planner translates the document model first and then routes the translated document through Filee's standard document-to-PDF export pipeline.
+
+## Image Quality Models (Offline AI Upscaler)
+
+Filee upscales and restores images locally using an offline AI super-resolution engine based on Vulkan/NCNN (`upscayl-bin` / `upscayl-ncnn`) and curated open-source neural network models (`upscayl/custom-models`). All processing runs 100% offline on your computer; no image data is ever uploaded or sent to external servers.
+
+- **Offline privacy & local execution**: Like all Filee features, image upscaling processes every pixel locally on your machine via direct Vulkan GPU acceleration. No network connection is used during upscaling. Requires a Vulkan-compatible graphics device.
+- **Models catalog**: Curated selection of high-quality image models for photos, digital art, illustration, and restoration:
+  - Fast & lightweight models (integrated and entry-level GPUs): `4xLSDIRCompactC3`, `RealESRGAN_General_x4_v3`, `RealESRGAN_General_WDN_x4_v3`.
+  - Detailed & high-fidelity models (recommended for dedicated GPUs): `4x_NMKD-Siax_200k`, `4x_NMKD-Superscale-SP_178000_G`, `4xLSDIR`, `4xLSDIRplusC`, `4xNomos8kSC`, `4xHFA2k`.
+- **Where it lives**:
+  - **Palette**: The **Upscale** preset opens the interactive Upscale dialog to select models, scale factors (2× to 4×), preview output resolution, and upscale directly.
+  - **Settings → Presets**: The "Upscale Image" tool preset can be configured with preferred default models and scale factors.
+  - **Settings → Engines**: "Upscayl (AI image upscaler)" engine package provides the local `upscayl-bin` binary, with models downloaded on demand with live progress and uninstall support in the Upscale dialog.
+- **Supported formats**: PNG, JPG, WEBP, ICO, HEIC, AVIF, BMP, and TIFF.

src/Filee.App/Assets/i18n/ar.json

@@ -17,7 +17,6 @@
   "fields.name.video-pro": "إنتاج الفيديو والبث",
   "fields.name.audio-pro": "الصوت الاحترافي",
   "fields.name.legacy": "الصيغ القديمة",
-
   "nav.home": "الرئيسية",
   "nav.general": "عام",
   "nav.triggers": "الاختصارات",
@@ -734,17 +733,17 @@
   "toolbar.mixed_covered": "يأتي «{0}» أولًا ويسمح بكل الامتدادات المحددة هنا، لذا لن يُستخدم ملف التعريف هذا.",
   "toolbar.mixed_others": "تفتح التحديدات المختلطة الأخرى «{0}».",
   "toolbar.mixed_others_self": "لا يوجد ملف تعريف مختلط بلا امتدادات محددة، لذا يُستخدم هذا الملف أيضًا لكل مزيج آخر.",
-   "toolbar.chip_tip.makes": "→ {0} · {1}",
-   "toolbar.chip_tip.makes_same": "→ التنسيق نفسه",
-   "toolbar.chip_tip.makes_name": "→ {0}",
-   "toolbar.chip_tip.works_with": "الصيغ المقبولة: {0}",
-   "toolbar.chip_tip.kind": "{0} ({1})",
-   "toolbar.chip_tip.name_separator": "، ",
-   "toolbar.chip_tip.names_more": "{0} +{1}",
-   "toolbar.chip_tip.more_shift": "+{0} · Shift لعرض الكل",
-   "toolbar.chip_tip.shift_all": "Shift لعرض الكل",
-   "toolbar.chip_tip.any_file": "أي ملف",
-   "tags.remove": "إزالة",
+  "toolbar.chip_tip.makes": "→ {0} · {1}",
+  "toolbar.chip_tip.makes_same": "→ التنسيق نفسه",
+  "toolbar.chip_tip.makes_name": "→ {0}",
+  "toolbar.chip_tip.works_with": "الصيغ المقبولة: {0}",
+  "toolbar.chip_tip.kind": "{0} ({1})",
+  "toolbar.chip_tip.name_separator": "، ",
+  "toolbar.chip_tip.names_more": "{0} +{1}",
+  "toolbar.chip_tip.more_shift": "+{0} · Shift لعرض الكل",
+  "toolbar.chip_tip.shift_all": "Shift لعرض الكل",
+  "toolbar.chip_tip.any_file": "أي ملف",
+  "tags.remove": "إزالة",
   "presets.title": "الإعدادات المسبقة",
   "presets.add": "جديد",
   "presets.add_empty": "إعداد مسبق فارغ",
@@ -1414,7 +1413,6 @@
   "sheet_studio.apply_fix": "تطبيق التخطيط المقترح",
   "sheet_studio.add_region": "+ إضافة نطاق آخر",
   "sheet_studio.region_name": "{0} · النطاق {1}",
-
   "whats_new.title": "الجديد في Filee {0}",
   "whats_new.previous": "السابق",
   "whats_new.next": "التالي",
@@ -1492,6 +1490,28 @@
   "engines.ollama.complete": "اكتمل!",
   "engines.ollama.failed": "فشل:",
   "engines.ollama.error": "خطأ:",
+  "preset.upscale": "ترقية جودة الصورة",
+  "preset.upscale.donut": "ترقية الجودة",
+  "engine.upscaler.name": "نماذج جودة الصورة",
+  "engine.upscaler.description": "ترقية دقة الصور بالذكاء الاصطناعي حتى 4 أضعاف باستخدام نماذج NCNN المحلية.",
+  "engines.upscaler.modal_description": "قم بتنزيل نماذج الذكاء الاصطناعي المحلية لترقية دقة الصور حتى 4×. تجري كافة العمليات دون اتصال بالإنترنت بنسبة 100%.",
+  "upscale.model": "النموذج",
+  "upscale.scale": "معامل التكبير",
+  "upscale.output_format": "تنسيق الإخراج",
+  "upscale.format_same": "نفس التنسيق الأصلي ({0})",
+  "upscale.resolution_label": "معاينة الدقة",
+  "upscale.resolution_preview": "{0} × {1} px  ➜  {2} × {3} px  ({4}×)",
+  "upscale.button_start": "ترقية الآن",
+  "upscale.success": "اكتملت ترقية الصورة بنجاح.",
+  "error.upscale_failed": "فشلت الترقية: {0}",
+  "engines.package.upscayl-bin.name": "Upscayl (ترقية دقة الصور بالذكاء الاصطناعي)",
+  "engines.package.upscayl-bin.description": "ترقية دقة الصور والدقة الفائقة حتى 4 أضعاف بنماذج NCNN محلية.\nتُنزَّل النماذج عند استخدامها أول مرة.",
+  "error.upscale_needs_engine": "ثبّت Upscayl من الإعدادات ← المحركات لاستخدام ترقية الدقة بالذكاء الاصطناعي.",
+  "error.upscale_needs_vulkan": "يتطلب رفع دقة الصور بطاقة رسومات (GPU) متوافقة مع Vulkan.",
+  "upscale.model_ready": "جاهز",
+  "upscale.model_download_size": "تنزيل {0} م.ب",
+  "upscale.downloading_model": "جارٍ تنزيل النموذج...",
+  "engines.model.delete_confirm": "هل تريد حذف النموذج {0}؟ يمكنك تنزيله مرة أخرى في أي وقت.",
   "home.queue_error": "تعذر تحويل {0}. تحتفظ القائمة بالملفات.",
   "home.queue_selected": "محدد",
   "home.queue_remove_file": "إزالة {0}",

src/Filee.App/Assets/i18n/de.json

@@ -17,7 +17,6 @@
   "fields.name.video-pro": "Videoproduktion und Rundfunk",
   "fields.name.audio-pro": "Professionelles Audio",
   "fields.name.legacy": "Alte Formate",
-
   "nav.home": "Start",
   "nav.general": "Allgemein",
   "nav.triggers": "Tastenkürzel",
@@ -734,17 +733,17 @@
   "toolbar.mixed_covered": "„{0}“ steht weiter oben und erlaubt alle hier ausgewählten Dateiendungen. Dieses Profil wird daher nie verwendet.",
   "toolbar.mixed_others": "Andere Dateimischungen öffnen „{0}“.",
   "toolbar.mixed_others_self": "Kein Profil für gemischte Auswahlen ist ohne Auswahl geblieben. Dieses Profil wird daher auch für alle anderen Dateimischungen verwendet.",
-   "toolbar.chip_tip.makes": "→ {0} · {1}",
-   "toolbar.chip_tip.makes_same": "→ Gleiches Format",
-   "toolbar.chip_tip.makes_name": "→ {0}",
-   "toolbar.chip_tip.works_with": "Formate: {0}",
-   "toolbar.chip_tip.kind": "{0} ({1})",
-   "toolbar.chip_tip.name_separator": ", ",
-   "toolbar.chip_tip.names_more": "{0} +{1}",
-   "toolbar.chip_tip.more_shift": "+{0} zusätzlich · Shift zeigt alle",
-   "toolbar.chip_tip.shift_all": "Shift zeigt alle",
-   "toolbar.chip_tip.any_file": "Beliebige Datei",
-   "tags.remove": "Entfernen",
+  "toolbar.chip_tip.makes": "→ {0} · {1}",
+  "toolbar.chip_tip.makes_same": "→ Gleiches Format",
+  "toolbar.chip_tip.makes_name": "→ {0}",
+  "toolbar.chip_tip.works_with": "Formate: {0}",
+  "toolbar.chip_tip.kind": "{0} ({1})",
+  "toolbar.chip_tip.name_separator": ", ",
+  "toolbar.chip_tip.names_more": "{0} +{1}",
+  "toolbar.chip_tip.more_shift": "+{0} zusätzlich · Shift zeigt alle",
+  "toolbar.chip_tip.shift_all": "Shift zeigt alle",
+  "toolbar.chip_tip.any_file": "Beliebige Datei",
+  "tags.remove": "Entfernen",
   "presets.title": "Vorlagen",
   "presets.add": "Neu",
   "presets.add_empty": "Leere Vorlage",
@@ -1491,6 +1490,28 @@
   "engines.ollama.complete": "Abgeschlossen!",
   "engines.ollama.failed": "Fehlgeschlagen:",
   "engines.ollama.error": "Fehler:",
+  "preset.upscale": "Bild hochskalieren",
+  "preset.upscale.donut": "Hochskalieren",
+  "engine.upscaler.name": "Bildqualitäts-Modelle",
+  "engine.upscaler.description": "KI-Bild-Hochskalierung und Super-Resolution bis zu 4× mit lokalen NCNN-Modellen.",
+  "engines.upscaler.modal_description": "Laden Sie lokale KI-Modelle herunter, um Bilder bis zu 4× hochzuskalieren. Die Verarbeitung erfolgt zu 100 % offline auf Ihrem Gerät.",
+  "upscale.model": "Modell",
+  "upscale.scale": "Skalierungsfaktor",
+  "upscale.output_format": "Ausgabeformat",
+  "upscale.format_same": "Gleiches Format wie Quelle ({0})",
+  "upscale.resolution_label": "Auflösungsvorschau",
+  "upscale.resolution_preview": "{0} × {1} px  ➜  {2} × {3} px  ({4}×)",
+  "upscale.button_start": "Jetzt hochskalieren",
+  "upscale.success": "Hochskalierung erfolgreich abgeschlossen.",
+  "error.upscale_failed": "Hochskalierung fehlgeschlagen: {0}",
+  "engines.package.upscayl-bin.name": "Upscayl (KI-Bild-Upscaler)",
+  "engines.package.upscayl-bin.description": "KI-Bild-Upscaling und Super-Resolution bis zu 4× mit lokalen NCNN-Modellen.\nModelle werden bei der ersten Verwendung heruntergeladen.",
+  "error.upscale_needs_engine": "Installiere Upscayl unter Einstellungen → Module, um KI-Upscaling zu nutzen.",
+  "error.upscale_needs_vulkan": "Für das Hochskalieren ist eine Vulkan-kompatible Grafikkarte (GPU) erforderlich.",
+  "upscale.model_ready": "Bereit",
+  "upscale.model_download_size": "{0} MB Download",
+  "upscale.downloading_model": "Modell wird heruntergeladen...",
+  "engines.model.delete_confirm": "Modell {0} löschen? Du kannst es jederzeit wieder herunterladen.",
   "home.queue_error": "{0} konnte nicht konvertiert werden. Die Liste behält die Dateien.",
   "home.queue_selected": "ausgewählt",
   "home.queue_remove_file": "{0} entfernen",