WIM is a general-purpose image display and analysis program for the Microsoft Windows operating systems with special features for analyzing satellite images.
WIM has been designed to work with digital images. In the WIM parlor an image is simply a two-dimensional array (matrix) of numbers representing the values of its elements (pixels). Digital images of this kind are produced by satellite sensors, medical imaging devices, computer models, etc.
There are many ways and formats to store digital images. The simplest is a sequence of numbers (e.g. row by row) representing the picture elements (pixels) which is often referred to as unformatted raster image. In this case the total number of pixels equals the number of rows times the number of columns, an the file size equals the number of pixels times the number of bytes per pixel. More complex formats add more information to the file, e.g. the dimensions, color palettes, geometric projections and other ancillary data. The image data may be compressed to reduce the storage requirements.