Manual delineation
Areas with similar colour and texture are manually delineated as polygons and then assigned a mapping category based on the field data.
Field data + image backdrop
Delineated habitat map
Fundamentals
- Main page
- Pre-processing
- Field data collection
- Introduction
- Benthic sampling
- Benthic field data sources
- Evaluating field survey techniques
- Georeferenced photo transects
- Transects - photo analysis
- Transect output
- Transects - required equipment
- Snorkel vs AUV surveys
- Examples
- Advantages and disadvantages
- AUV example with validation
- Spectral libraries
- Example spectra
- Optical water properties
- Bathymetry
- Control points
- Features mapping
- Mapping approaches
- Change and trends
- Introduction
- About
- Image requirements
- Mapping change
- Trend detection
- Example time series
- Variations in coastal water clarity
- Variations in benthic-microalgae mats
- Variations in Sargassum cover
- Changes due to cyclone impact
- Example change maps
- Seagrass example
- Sea surface temperature example
- Coral bleaching example
- Cyclone, coral bleaching, and coral recovery
- Delivery
- Introduction
- Post classification
- Refinements and smoothing operations
- Stratification and post-classification sorting
- Error assessment
- Sampling design
- Sampling unit size
- Number of samples
- Sampling scheme
- Selecting a reference data set
- Reference data example
- Derivation of error or contingency matrix
- Category level accuracy
- Map level accuracy
- Quantitative image products
- Interpreting mapping accuracy
- Interpreting mapping accuracy
- Interpreting mapping accuracy
- Interpreting mapping accuracy
- Final map creation
