NASA Vision Workbench is a C++ image processing and machine vision library.
The Vision Workbench has been used within NASA for a wide range of image processing tasks, including alignment and stitching of panoramic images, high-dynamic-range imaging, texture analysis and recognition, lunar and planetary map generation, and the production of 3D models from stereo image pairs.
NASA Vision Workbench was designed to support a variety of space exploration tasks, including automated science and engineering analysis, robot perception, and 2D/3D environment reconstruction, though it can also serve as a general-purpose image processing and machine vision framework in other contexts as well.
This package is composed of several modules each of which provides a separate C++ library. The core library provides the basic image and pixel data types as well as a range of fundamental image processing operations.
It is specifically designed for image processing in the context of machine vision.
Features include:
- Solid efficient foundation.
- ‘Lazy’ computation model.
- Scalable support for block-level operations on images.
- Easy to understand end-user syntax.
- Modules:
- Camera.
- pinhole and linescan camera models.
-
- EXIF metadata parsing.
-
- bayer filter decoding.
- Cartography:
- transformation between map projections.
-
- geo-referenced file IO (GeoTIFF, etc).
- Core:
- exception handling.
-
- debugging support.
-
- type system support.
-
- cache support.
- FileIO:
- reading and writing JPEG, PNG, TIFF, PDS, OpenEXR files (requires 3rd party libraries).
- image paging support for large files.
- HDR:
- high dynamic range image creation from bracketed low dynamic range exposures.
- camera response curve estimation.
- global and local tone mapping operators.
- Image:
- convolution — convolve images with linear filters.
- algebra — image addition, subtraction, and multiplication by a scalar.
- math — perform per pixel math operations on images (e.g., abs, hypot, sqrt, pow, exp, log, sin, cos, asin, acos, atan2, etc).
- transformations — translation, rotation, scale, resampling, arbitrary warps.
- image statistics.
- Math:
- vector, matrix, quaternion and linear algebra (interface to LAPACK).
- optimization — levenberg-Marquardt, conjugate gradient.
- homographies — estimation of relations between geometric entities.
- bounding boxes — Determination of geometric extent.
- Mosaic:
- assembling large image composites from many source images.
- multi-band blending.
- generating on-disk quad-tree representations of extremely large images.
- Stereo:
- correlating stereo pairs of images.
- stereo camera models for 3D reconstruction.
- outlier rejection.
- Camera.
Website: software.nasa.gov/software/ARC-15761-1A
Support: Documentation, GitHub Code Repository
Developer: NASA Ames Research Center
License: Apache License, Version 2.0
Nasa Vision Workbench is written in C++. Learn C++ with our recommended free books and free tutorials.
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