The imagemosaic data store allows the creation of a mosaic from a number of georeferenced rasters.
The mosaic operation creates a mosaic of two or more source images. This operation could be used to assemble a set of overlapping geospatially rectified images into a contiguous image. It could also be used to create a montage of photographs such as a panorama.
The plugin can be used with GeoTIFFs, as well as rasters accompanied by a world file (.wld, .pgw for PNG files, .jgw for JPG files, etc.). In addition, if imageIO-ext GDAL extension is properly installed, the plugin can also serve all the formats supported by it such as MrSID, ECW, JPEG2000. It also supports NetCDF and GRIB.