maskq
Mask or clip rasters by value range, raster mask, polygon boundary, or a shape drawn on the map canvas. Interactive histogram with draggable handles. Live canvas preview.
MaskQ lets you mask or clip any local raster using four methods: (1) keep pixels within a configurable value range or meeting a threshold condition, (2) use a second raster as a quality or flag mask, (3) clip to a polygon vector boundary, or (4) draw a shape directly on the map canvas (freehand, polygon, rectangle, or the current map extent). Features an interactive histogram with draggable handles, live map-canvas preview with adjustable highlight colour, smart auto-naming that embeds condition values in the output filename, and full QGIS Processing Toolbox integration for batch use. Designed for remote sensing, DEM analysis, and field mapping workflows.