https://sourceforge.net/p/oculix/wiki/OCR%2520Engines/Recent changes to OCR EnginesenSun, 12 Apr 2026 00:55:56 -0000https://sourceforge.net/p/oculix/wiki/OCR%2520Engines/<div class="markdown_content"><h1 id="h-ocr-engines">OCR Engines</h1> <p><img alt="New" rel="nofollow" src="https://img.shields.io/badge/type-new%20feature-brightgreen?style=for-the-badge"/><br/> <img alt="PaddleOCR" rel="nofollow" src="https://img.shields.io/badge/PaddleOCR-primary-blue?style=for-the-badge"/><br/> <img alt="Tesseract" rel="nofollow" src="https://img.shields.io/badge/Tesseract-fallback-grey?style=for-the-badge"/></p> <blockquote> <p>OculiX introduces a pluggable OCR architecture with PaddleOCR as primary engine and Tesseract as fallback.</p> </blockquote> <hr/> <h2 id="h-architecture">Architecture</h2> <div class="codehilite"><pre><span></span><code>OCREngine (interface) ├── PaddleOCREngine → HTTP client, zero external deps │ └── PaddleOCRClient → JSON parsing, connection handling (629 lines) └── TesseractEngine → Tess4J wrapper (247 lines) </code></pre></div> <p>Auto-detection: PaddleOCR is tried first. If unavailable, falls back to Tesseract.</p> <h2 id="h-paddleocr-integration">PaddleOCR Integration</h2> <table> <thead> <tr> <th>Component</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td><code>PaddleOCREngine</code></td> <td>Engine adapter (629 lines)</td> </tr> <tr> <td><code>PaddleOCRClient</code></td> <td>Zero-dependency HTTP client with manual JSON parsing</td> </tr> <tr> <td>Protocol</td> <td>HTTP REST API to a PaddleOCR server</td> </tr> </tbody> </table> <h2 id="h-utilities">Utilities</h2> <table> <thead> <tr> <th>Class</th> <th>Purpose</th> </tr> </thead> <tbody> <tr> <td><code>AmountVariantGenerator</code></td> <td>Generates tolerance variants for monetary formats (e.g. <code>1,234.56</code> ↔ <code>1234.56</code> ↔ <code>1 234,56</code>)</td> </tr> <tr> <td><code>TextNormalizer</code></td> <td>Accent stripping, case-insensitive comparison, whitespace normalization</td> </tr> </tbody> </table> <h2 id="h-key-classes">Key Classes</h2> <p>All in <code>com.sikulix.ocr.*</code>:</p> <table> <thead> <tr> <th>File</th> <th>Lines</th> <th>Purpose</th> </tr> </thead> <tbody> <tr> <td><code>OCREngine.java</code></td> <td>—</td> <td>Interface for pluggable engines</td> </tr> <tr> <td><code>PaddleOCREngine.java</code></td> <td>629</td> <td>PaddleOCR implementation</td> </tr> <tr> <td><code>PaddleOCRClient.java</code></td> <td>629</td> <td>HTTP client, zero-dep</td> </tr> <tr> <td><code>TesseractEngine.java</code></td> <td>247</td> <td>Tesseract fallback</td> </tr> <tr> <td><code>AmountVariantGenerator.java</code></td> <td>93</td> <td>Monetary format tolerance</td> </tr> <tr> <td><code>TextNormalizer.java</code></td> <td>77</td> <td>Text normalization</td> </tr> </tbody> </table></div>Julien MerSun, 12 Apr 2026 00:55:56 -0000https://sourceforge.netfb1946f023fa3c958b8e084eaf0f5d3265ebb9bd