--- title: "VisionFeatures" canonical_url: "https://www.nutrient.io/api/csharp/enums/vision-features/" md_url: "https://www.nutrient.io/api/csharp/enums/vision-features.md" last_updated: "2026-10-08T08:55:57.709Z" description: "Vision processing features that can be enabled or disabled." --- Vision processing features that can be enabled or disabled. ```csharp using Nutrient; ``` `VisionFeatures` is a flags enum: combine values with `|`. ## Values | Name | Value | Description | | ------------------------------------ | ----- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `VisionFeatures.Unknown` | `0` | No features enabled. | | `VisionFeatures.Equation` | `1` | Mathematical equation detection and recognition. | | `VisionFeatures.Table` | `2` | Table structure detection and extraction. | | `VisionFeatures.KeyValueRegion` | `4` | Key-value region detection for form-like content. | | `VisionFeatures.ImageClassification` | `8` | Image classification for figures and diagrams. | | `VisionFeatures.Handwriting` | `16` | Image classification for figures and diagrams. | | `VisionFeatures.Form` | `32` | Form field detection (TextBox, ChoiceButton, Signature). | | `VisionFeatures.BarcodeDetection` | `64` | Barcode/QR decode-test on image regions: regions whose content decodes as a barcode are emitted as BarcodeNode instead of PictureNode. | | `VisionFeatures.InlineStyles` | `128` | Inline text-style classification (bold, italic, underline, strikeout, highlight, superscript, subscript) on OCR words. Advanced options are configured via `InlineStyleSettings`. | | `VisionFeatures.Lexicon` | `256` | Language-aware dehyphenation from lexicon packs; off means the built-in English lists only. | | `VisionFeatures.All` | `511` | All vision features enabled. | --- ## Related pages - [Enums](/api/csharp/enums.md) - [Auto Tagging Engine](/api/csharp/enums/auto-tagging-engine.md) - [Description Level](/api/csharp/enums/description-level.md) - [Document Bookmark Source](/api/csharp/enums/document-bookmark-source.md) - [Document Format](/api/csharp/enums/document-format.md) - [Document Markup Mode](/api/csharp/enums/document-markup-mode.md) - [Document Type](/api/csharp/enums/document-type.md) - [Execution Provider](/api/csharp/enums/execution-provider.md) - [Form Vlm Enrichment Model](/api/csharp/enums/form-vlm-enrichment-model.md) - [Html Layout Type](/api/csharp/enums/html-layout-type.md) - [Image Export Format](/api/csharp/enums/image-export-format.md) - [Image Export Mode](/api/csharp/enums/image-export-mode.md) - [Image Setting Mode](/api/csharp/enums/image-setting-mode.md) - [Implicit Conversion](/api/csharp/enums/implicit-conversion.md) - [Inline Style Reference Mode](/api/csharp/enums/inline-style-reference-mode.md) - [Instant Json Render Theme](/api/csharp/enums/instant-json-render-theme.md) - [Json Export Content](/api/csharp/enums/json-export-content.md) - [Json Export Format](/api/csharp/enums/json-export-format.md) - [Ocr Activation Mode](/api/csharp/enums/ocr-activation-mode.md) - [Ocr Engine](/api/csharp/enums/ocr-engine.md) - [Open Settings Mode](/api/csharp/enums/open-settings-mode.md) - [Page Cache Mode](/api/csharp/enums/page-cache-mode.md) - [Paper Normalization Mode](/api/csharp/enums/paper-normalization-mode.md) - [Pdf Border Style](/api/csharp/enums/pdf-border-style.md) - [Pdf Compression](/api/csharp/enums/pdf-compression.md) - [Pdf Conformance](/api/csharp/enums/pdf-conformance.md) - [Pdf Form Field Type](/api/csharp/enums/pdf-form-field-type.md) - [Pdf Line Ending Style](/api/csharp/enums/pdf-line-ending-style.md) - [Pdf Page Sizes](/api/csharp/enums/pdf-page-sizes.md) - [Pdf Rubber Stamp Icon](/api/csharp/enums/pdf-rubber-stamp-icon.md) - [Pdf Save Preferences](/api/csharp/enums/pdf-save-preferences.md) - [Pdf Settings Mode](/api/csharp/enums/pdf-settings-mode.md) - [Pdf Validation Conformance](/api/csharp/enums/pdf-validation-conformance.md) - [Rendering Layout Mode](/api/csharp/enums/rendering-layout-mode.md) - [Restoration Mode](/api/csharp/enums/restoration-mode.md) - [Schema Compatibility](/api/csharp/enums/schema-compatibility.md) - [Search Display](/api/csharp/enums/search-display.md) - [Search Mode](/api/csharp/enums/search-mode.md) - [Signature Certification Level](/api/csharp/enums/signature-certification-level.md) - [Signature Format](/api/csharp/enums/signature-format.md) - [Signature Hash Algorithm](/api/csharp/enums/signature-hash-algorithm.md) - [Signature Key Source](/api/csharp/enums/signature-key-source.md) - [Signature Level](/api/csharp/enums/signature-level.md) - [Text Direction](/api/csharp/enums/text-direction.md) - [Tiff Compression](/api/csharp/enums/tiff-compression.md) - [Unit Mode](/api/csharp/enums/unit-mode.md) - [Unparseable Output Handling](/api/csharp/enums/unparseable-output-handling.md) - [Vision Engine](/api/csharp/enums/vision-engine.md) - [Vision Output Format](/api/csharp/enums/vision-output-format.md) - [Vlm Classification Strategy](/api/csharp/enums/vlm-classification-strategy.md) - [Vlm Provider](/api/csharp/enums/vlm-provider.md) - [Word Refining Method](/api/csharp/enums/word-refining-method.md)