What is a raster cell in raster data?

A cell in raster data is the smallest element of a raster grid: one pixel or raster cell with one value (or a set of bands, for example RGB). The raster consists of rows and columns of cells with fixed cell size in ground units.

Examples: elevation per cell in a DEM, reflectance in a satellite image, land-use code per cell. Cell size (resolution) determines detail: 0.5 m for orthophoto, 25 m for regional elevation models.

A cell is not a vector feature with attributes and ID. In vector data we speak of points and polygons; in raster data of cells. Aggregating cells yields area statistics; vectorization converts raster to objects.