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OpenLvVision
OpenLvVision is an open-source library designed for image processing within the LabVIEW environment. It bridges the gap between high-level Vision steps and low-level memory management, offering granular control over image data.
📘 Documentation: For a complete reference of all functions and detailed usage, visit openlvvision.org/docs/image/.
⚡ Data Access
- Array Conversions: Rapidly convert between LabVIEW Arrays (1D/2D/3D) and Vision Images.
- Supported Types:
U8,U16,I16,U32,U64,SGL,Complex (CSG), andRGB (U32/U64). - Functions:
Image To Array,Array To Image.
- Supported Types:
- Direct Pixel Manipulation: Read and write specific pixels, rows, or columns without extracting the entire image.
- Functions:
Read/Write Pixel,Read/Write Row,Read/Write Column.
- Functions:
- Zero-Copy Access (DVR): Utilize Data Value References to manipulate image data in-place for maximum speed.
- Functions:
Image To DVR.
- Functions:
- Utilities:
Flatten Image To String(with compression options).Number To Color/Color To Number(Convert between integer and RGBA structures).
📁 File Input/Output
Robust tools for handling standard image files and web-ready data formats.
- Standard Formats: Read and write common formats including BMP, JPEG, PNG, TIFF, and JPEG2000.
- Functions:
Read Image File,Write Image File(Polymorphic).
- Functions:
- Web Integration: Easily convert images for web applications or APIs.
- Functions:
String To Base64,Get File String(Retrieve raw file bytes without saving to disk).
- Functions:
🛠 Management & Utilities
Essential tools for managing the lifecycle and metadata of your images.
- Lifecycle Control: Safely manage image memory.
- Functions:
Create,Dispose,Copy,Cast(Convert Image Types).
- Functions:
- Metadata & Info: Access and modify hidden image properties.
- Functions:
Read/Write Image Size,Read/Write Bit Depth,Read Image Info.
- Functions:
- Custom Data: Attach custom key-value pairs directly to an image reference.
- Functions:
Read/Write Custom Data,Remove Custom Data,Read All Custom Keys.
- Functions:
System Requirements
- LabVIEW: 2020 or newer (Community Edition supported).
- OS: Windows operating system.
- Dependencies: NI Vision Common Ressources.
Installation
Install the OpenLvVision_Image package directly via VI Package Manager (VIPM).
License
OpenLvVision is open-source software BSD-3.
Third Party Copyrights:
- © 2000–2025 National Instruments Corporation. All rights reserved.
- Third-party copyrights are property of their respective owners.
BugFix:
IMAQ Access violation in cast