Reclassification
Assigning new values or categories to raster cells based on defined criteria, often used for suitability analysis or thematic mapping (inferred from standard GIS usage).
What is Reclassification?
Assigning new values to raster dataset cells based on their pre-existing values is known as reclassification in GIS. This effectively groups or simplifies data for analysis or visualization.
Reclassification (sometimes called recode or recode mapping) is the process of changing a raster layer's values to new ranges or categories in order to better fit a certain interpretation or use. This is frequently done to:
Make complicated facts simpler.
Put related values together.
Make appropriate maps.
Get data ready for modelling or overlay.
In GIS, reclassification is a potent raster operation that aids in reorganizing data into useful classes or categories for focused modelling, analysis, or decision-making.
Related Keywords
In GIS, raster reclassification divides elevation into low, medium, and high categories for analysis, giving raster cells new values to emphasize characteristics or simplify data.
The practice of simplifying or rearranging land cover data into more comprehensive or insightful groups for analysis is known as land cover reclassification. This method is frequently employed in GIS to group related land types, simplify, and speed up decision-making in resource management, urban development, and environmental planning. Analysts might concentrate on particular land cover characteristics that are pertinent to their research goals by reclassifying.
In QGIS, reclassification is the process of giving raster data new values depending on preexisting ranges or values. It is frequently used to combine related features, simplify data, or get datasets ready for study. For instance, it is possible to reclassify elevation data into low, medium, and high categories. To do this work effectively, QGIS offers tools like Reclassify by Table and Raster Calculator.
By giving existing cell values new values, the ArcGIS Raster Reclassification Tool can alter or simplify raster dataset values. It is frequently used in environmental modelling, suitability analysis, and land use mapping, enabling analysts to organize or rank data for simpler understanding and decision-making.