image catalogAn organized set of spatially referenced, possibly overlapping, images that can be accessed as one logical image. An image catalog is a group of images on disk, each referenced by a record in an INFO data file.
image catalog
A collection of raster datasets defined in a table of any format, in which the records define the individual raster datasets that are included in the catalog.
The image catalog allows you to seamlessly browse the 1:24,000 DRGs without having to know which quad to load into ArcView or Arcplot.
Following are the two ARC/INFO commands necessary to implement the catalog.
Image catalogs
ArcInfo's image catalog format assembles a series of adjacent image files into a single, seamless, virtual image. ArcGIS treats image catalogs as single image data layer sources.
ArcInfo grids ...
Edge-matching and geo-referencing the images (associating the pixels with real world coordinates) improves the utility of the scanned images by providing a seamless view of the raster data in an image catalog.
 See also: Model, Layer, Format, Information, Interface
  
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