Digital raster images are multi-dimensional digital signal arrays of pixels with information presented by value of signal channels such as intensity (brightness), color or others depending on imaging modality. Fundamentally, computer-based images analysis is a part of computational signal processing field of discreet mathematics and it encompasses methods and techniques of numerical analysis.
Process, methods and techniques
There are numerous methods and techniques applicable to computer-based analysis of digital raster images that generally fall into the following parts of the process:
- Feature Extraction
- Feature Detection and Object Recognition
- Characterization and Measurement