rasterrelated

Rasterrelated is a term used to describe items, concepts, or discussions that pertain to raster data and raster grids. In geographic information systems (GIS) and digital image processing, rasterrelated acts as an umbrella for data structures, formats, and operations that involve grid-based representations of space or imagery.

Raster data represents information as a regular grid of cells, or pixels, each carrying a value such as a spectral reflectance, elevation, or color intensity. Each raster has attributes including resolution, extent, and coordinate reference system, which determine its scale and alignment with other data. The grid-based nature of rasters makes them well suited to continuous phenomena and image-like data.

Common rasterrelated activities include creating rasters from vector features (rasterization), resampling to change resolution, reprojection to align with a different CRS, filtering and interpolation to estimate values, and performing spatial analyses such as terrain modeling or land-cover classification. Examples of analyses often rely on grid-based calculations, neighborhood operations, and map algebra.

Raster data are stored in formats such as GeoTIFF, IMG, and JPEG 2000, and may be tiled and stored with overviews or pyramids to accelerate display and analysis. Software libraries and tools, notably GDAL and GIS platforms like QGIS or ArcGIS, handle rasterrelated workflows, from data conversion to complex analyses and visualization.

In standards, raster coverage concepts are addressed by Open Geospatial Consortium specifications, including web interfaces that provide access to raster data over the web. The term rasterrelated commonly appears in documentation as a tagged category for topics dealing with grid-based imagery, satellite data, and raster processing techniques.