rasterische

Rasterische is the German adjective relating to a raster, i.e., a regular grid of cells or pixels. In technical contexts it describes data, images, or processes defined on or arranged as such a grid. The related nouns are Raster (grid) and Rasterisierung (rasterization). The term is common in computer graphics, geographic information systems (GIS), remote sensing, and digital imaging.

In raster graphics, an image is stored as a grid of pixels. Each cell has a color value. Resolution is defined by the number of columns and rows, determining detail; scaling can cause blurring or blockiness because new pixels must be interpolated. Common formats include PNG, JPEG, TIFF, and BMP. In GIS, raster data represents space as a grid where each cell holds a value such as elevation or land cover. The cell size, extent, and coordinate system define the raster’s spatial properties. Raster data supports fast analysis over large areas but may require substantial storage and show artifacts at coarse resolutions.

Rasterization is the process of converting vector representations (lines, shapes, text) or 3D geometry into a raster image. During rasterization, geometry is mapped to pixel coordinates, and color or shading values are computed for each pixel, often with anti-aliasing to smooth edges. In rendering pipelines, rasterization is a primary stage for image synthesis.

Rasterische usage also extends to patterns or textures with a gridlike appearance, though in most contexts it denotes grid-based data and imaging.