Raster file formats gis9/2/2023 ![]() Mosaic datasetĪ mosaic dataset is a collection of raster datasets (images) stored as a collection of images and viewed or accessed as a single mosaicked image or individual images (rasters). ArcGIS Pro supports more than 70 file formats for raster datasets, including TIFF, JPEG 2000, Cloud Raster Format (CRF), and NITF. An image or raster dataset has at least one band. Each band consists of an array of pixels, and each pixel has a value. It's also the output from many geoprocessing tools that process raster data.Ī raster dataset is any valid image or raster format organized into one or more bands. ![]() A raster dataset is the most basic raster data storage model on which the others are built-for example, mosaic datasets manage raster datasets. The term raster dataset refers to any raster model that is stored on disk or is accessible as a single image stored in cloud storage. Most image and raster data (such as an orthoimage or DEM) is provided as a raster dataset. A geodatabase can store either raster datasets or mosaic datasets. If you store the data in a file system, you store raster datasets. This decision also involves determining whether to store all the data in a single dataset or in a catalog of potentially many datasets. There are three methods to store image and raster data: as files in a file system, in a geodatabase, or managed from the geodatabase but stored in a file system. Image and raster data structures and storage models These image datasets, and collections of them, are often large, so having good management capabilities is important. ![]() Image data is often processed to create forms that can be processed on the fly, or saved as another updated version.
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