23 Commits

Author SHA1 Message Date
Benjamin Admin
4a15d46dfd refactor: rename PaddleOCR → PP-OCRv5 in frontend, remove Kombi-Vergleich tab
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Since ocr_region_paddle() now runs RapidOCR locally (same PP-OCRv5 models),
the "PaddleOCR (Hetzner)" labels were misleading. Renamed to "PP-OCRv5 (lokal)".
Removed the Kombi-Vergleich tab since both sides would produce identical results.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 09:11:26 +01:00
Benjamin Admin
a994ddee83 feat: add Kombi-Vergleich mode for side-by-side Paddle vs RapidOCR comparison
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Add /rapid-kombi backend endpoint using local RapidOCR + Tesseract merge,
KombiCompareStep component for parallel execution and side-by-side overlay,
and wordResultOverride prop on OverlayReconstruction for direct data injection.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 07:59:06 +01:00
Benjamin Admin
d6f51e4418 fix: deduplicate overlapping OCR words and use per-word Y positions in overlay
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Backend: Add spatial overlap check (>=50% horizontal IoU) to Kombi merge
so words at the same position are deduplicated even when OCR text differs.

Frontend: Add yPct/hPct to WordPosition so each word renders at its actual
vertical position instead of all words collapsing to the cell center Y.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-13 20:27:08 +01:00
Benjamin Admin
e9ccd1e35c feat: add Kombi-Modus (PaddleOCR + Tesseract) for OCR Overlay
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Runs both OCR engines on the preprocessed image and merges results:
word boxes matched by IoU, coordinates averaged by confidence weight.
Unmatched Tesseract words (bullets, symbols) are added for better coverage.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 20:05:50 +01:00
Benjamin Admin
d335a7bbf3 fix: use OCR word_box coordinates directly instead of fuzzy matching
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The slide positioning hook was re-matching cell.text tokens against
word_boxes via fuzzy text similarity, which broke positioning for
special characters (!, bullet points, IPA). Now uses word_box
coordinates directly — exact OCR positions without re-interpretation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 18:54:37 +01:00
Benjamin Admin
90c1efd9b0 feat: Paddle Direct — 1-click OCR without deskew/dewarp/crop
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New 2-step mode (Upload → PaddleOCR+Overlay) alongside the existing
7-step pipeline. Backend endpoint runs PaddleOCR on the original image
and clusters words into rows/cells directly. Frontend adds a mode
toggle and PaddleDirectStep component.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 16:41:55 +01:00
Benjamin Admin
06d63d18f9 fix: generic fuzzy text matching for overlay word-box positioning
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Replace sequential 1:1 token-to-box mapping with fuzzy text matching.
Each token from cell.text finds its best matching word_box by text
similarity (normalized prefix match + substring bonus). Handles:
- Reordered boxes (different sort between text and boxes)
- IPA corrections changing token boundaries
- Token/box count mismatches
Unmatched tokens get interpolated positions from matched neighbors.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 16:19:19 +01:00
Benjamin Admin
35f2706098 fix: Slide-Modus nutzt cell.text Tokens statt word_boxes Text (keine Woerter verloren)
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TEXT kommt aus cell.text (bereinigt, IPA-korrigiert).
POSITIONEN kommen aus word_boxes (exakte OCR-Koordinaten).
Tokens werden 1:1 in Leserichtung zugeordnet.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 20:01:57 +01:00
Benjamin Admin
0ee92e7210 feat: OCR word_boxes fuer pixelgenaue Overlay-Positionierung
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Backend: _ocr_cell_crop speichert jetzt word_boxes mit exakten
Tesseract/RapidOCR Wort-Koordinaten (left, top, width, height)
im Cell-Ergebnis. Absolute Bildkoordinaten, bereits zurueckgemappt.

Frontend: Slide-Hook nutzt word_boxes direkt wenn vorhanden —
jedes Wort wird exakt an seiner OCR-Position platziert. Kein
Pixel-Scanning noetig. Fallback auf alten Slide wenn keine Boxes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 19:39:49 +01:00
Benjamin Admin
4949863bd7 revert: Zurueck zum Einzelwort-Slide mit fontRatio=1.0 Fix
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Gruppen-Sliding schob nicht weit genug nach rechts. Zurueck zum
Original-Einzelwort-Slide, aber mit den Fixes:
- fontRatio=1.0 (konsistente Schriftgroesse wie Fallback)
- Token-Breiten aus medianCh * 0.7 / refFontSize (statt totalInk)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 19:15:52 +01:00
Benjamin Admin
efbe15f895 fix: Slide-Modus auf Gruppen-basiertes Sliding umgestellt
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Vorher: split(/\s+/) zerlegte alles in Einzelwoerter, verlor die
Spaltenstruktur (3+ Spaces zwischen Gruppen). Woerter stauten sich links.

Jetzt: split(/\s{3,}/) erhält Gruppen wie im Cluster-Modus. Jede Gruppe
wird als Einheit von links nach rechts geschoben bis Tinte gefunden.
Breite = max(gemessene Textbreite, tatsaechliche Tintenbreite).
fontRatio=1.0, kein Wort geht verloren.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 18:31:17 +01:00
Benjamin Admin
c3da131129 fix: Slide fontRatio=1.0 und Token-Breite aus gerenderter Fontgroesse
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fontRatio war 0.65 (35% kleiner als Fallback-Rendering). Jetzt 1.0
wie beim Fallback. Token-Breiten berechnet aus measureText skaliert
auf die tatsaechlich gerenderte Schriftgroesse (medianCh * 0.7).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 17:59:31 +01:00
Benjamin Admin
b81baa1d16 fix: Slide-Modus globale Schriftgroesse statt per-Token Scale
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Schriftgroesse wird jetzt GLOBAL aus der medianen Zellhoehe berechnet
(65% der Zellhoehe als Ziel-Font). Alle Tokens bekommen dieselbe
konsistente Groesse. Die Slide-Logik bestimmt nur noch die x-Position.

Vorher: Scale pro Zelle aus Ink-Span/Textbreite -> inkonsistente Groessen.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 16:51:55 +01:00
Benjamin Admin
2010cab894 fix: Slide-Modus Scale-Berechnung auf Ink-Span statt Ink-Count
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totalInk zaehlte nur dunkle Pixel-Spalten (Striche), ignorierte
Luecken zwischen Buchstaben. Scale war dadurch viel zu klein,
Schrift unlesbar. Jetzt wird der Ink-Span (erstes bis letztes
dunkles Pixel) als Referenz fuer die Textbreite verwendet.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 16:41:38 +01:00
Benjamin Admin
bc13978bc1 feat: Slide-Modus als alternative Wort-Positionierung im Overlay
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Neuer Hook useSlideWordPositions: Schiebt alle erkannten Woerter von links
nach rechts ueber die Pixel-Projektion bis jedes Wort auf seiner Tinte
einrastet. Kein Wort geht verloren, keine Cluster-Matching-Regeln noetig.

Toggle-Button (Slide/Cluster) in der Overlay-Toolbar zum Umschalten.
Bestehender Cluster-Algorithmus bleibt als Alternative erhalten.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 16:13:31 +01:00
Benjamin Admin
8a5f2aa188 fix: Cluster-Zuordnung per Breiten-Proportionalitaet statt Position
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Zwei wesentliche Verbesserungen:

1. Multi-group: Gruppen werden per Best-Fit-Breite den Clustern
   zugeordnet statt naiv links-nach-rechts. Damit wird z.B.
   "Kokosnuss" dem DE-Spalten-Cluster zugeordnet statt dem
   breiteren Box-Cluster.

2. Single-group Fallback: verwendet den BREITESTEN Cluster statt
   first-to-last Span. Verhindert dass Streupixel von benachbarten
   Seitenbereichen den Text nach links ziehen.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 15:39:54 +01:00
Benjamin Admin
d182d87f26 fix: OCR-Artefakte (|, >) vor Cluster-Matching zusammenfuehren
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Box-Rahmen werden vom OCR als einzelne Symbole wie "|" oder ">"
erkannt und als eigene Text-Gruppen behandelt. Das verfaelscht die
Cluster-Zuordnung weil diese Artefakte entweder keinen eigenen
Cluster erzeugen oder den falschen Cluster zugewiesen bekommen.

Fix: Gruppen mit max 2 Zeichen ohne Buchstaben/Ziffern werden mit
der benachbarten Gruppe zusammengefuehrt bevor die Cluster-Zuordnung
laeuft.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 15:03:37 +01:00
Benjamin Admin
87efc1b4ba fix: bei Cluster-Ueberschuss die breitesten N Cluster waehlen
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Wenn mehr Pixel-Cluster als Text-Gruppen existieren (z.B. wegen
Box-Rahmenlinien), werden jetzt die N breitesten Cluster ausgewaehlt
statt naiv clusters[i]→groups[i] zuzuordnen. Text-Cluster sind
breiter als Rahmenlinien-Cluster.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 14:34:58 +01:00
Benjamin Admin
dd7087cd6d fix: Pixel-Analyse nicht mehr ueberspringen wenn Cluster < Gruppen
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Vorher: wenn Text mehr Wort-Gruppen hatte als Pixel-Cluster gefunden
wurden (z.B. bei Box-Rahmen die Cluster zusammenmergen), wurde die
Zelle komplett uebersprungen → Fallback bei x=0%.

Jetzt: Fallback auf Single-Span Positionierung (first→last Cluster)
statt Skip. Damit wird der Text immer korrekt horizontal platziert.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 10:14:58 +01:00
Benjamin Admin
7282a220d6 fix: useMemo vor Early Returns verschieben (Rules of Hooks)
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 09:46:25 +01:00
Benjamin Admin
b5d5371f72 fix: einheitliche Schriftgroesse + Border-Cluster-Filter im Overlay
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1. Schriftgroesse basiert jetzt auf Median-Zeilenhoehe statt
   individueller Zellhoehe — keine Groessensprunge in Box-Bereichen
2. Sehr schmale Pixel-Cluster (< 0.5% Zellbreite) werden gefiltert,
   damit Box-Rahmen nicht als Textposition erkannt werden

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 09:34:41 +01:00
Benjamin Admin
2df2a01a8b feat: Echtes Overlay — Text direkt ueber dem Originalbild
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Statt Side-by-Side wird der erkannte Text jetzt direkt ueber das
Originalbild gelegt. Textfarbe (rot/blau/schwarz) und Deckkraft
per Slider einstellbar fuer einfache visuelle Fehlersuche.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 00:25:11 +01:00
Benjamin Admin
2cbdfc56f3 feat: OCR Overlay — ganzseitige Rekonstruktion ohne Spaltenerkennung
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Neue Route /ai/ocr-overlay mit vereinfachter 7-Schritt-Pipeline
(Orientierung, Begradigung, Entzerrung, Zuschnitt, Zeilen, Woerter, Overlay).
Nutzt bestehende Step-Komponenten, ueberspringt Spalten/LLM-Review/Ground-Truth.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-11 00:08:05 +01:00