ERDAS IMAGINE is a raster graphics editor and remote sensing application designed by Leica Geosystems Geospatial Imaging. The latest version is 9.1. It is an aimed primarily at geospatial raster data processing that allows the user to display and enhance digital images. It is a toolbox allowing the user to perform numerous operations on an image and generate an answer to specific geographical questions.
By manipulating data placement in imagery it is possible to see features that would not normally be visible. The level of brightness, or reflectance of light from the surfaces in the image can be helpful with vegetation analysis, prospecting for minerals etc. Other usage examples include linear feature extraction, generation of processing chains ("models" in ERDAS IMAGINE), import/export of data for a wide variety of formats, ortho-rectification of data and so forth.
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