Image Analysis for ArcGIS
Geographic images are the primary foundation for creating and maintaining Geographic Information Systems (GIS) data and information. Images serve as a permanent record of features, relationships, and processes which exist on the earth's surface. As the need to understand our world today becomes more important the demand for timely and reliable data is crucial. Image Analysis for ArcGIS brings together imagery and a GIS by extracting features to uncover the processes and relationships that exist among features. Using Image Analysis for ArcGIS, the data and information needed for your project can be easily extracted.
Image Analysis for ArcGIS is the GIS professional's all-in-one image processing software package for preparing and creating 'GIS-ready' images. It allows the GIS professional to extract and analyze spatial and non-spatial information from imagery.
Preparing Imagery for a GIS
Prior to using imagery in ArcMap, the raw images must be prepared to ensure the highest quality of information extraction. This involves importing images into ArcMap and preparing the images for information extraction. Over 60 various image formats can be processed and exported with Image Analysis for ArcGIS. This software also offers a variety of spectral and radiometric enhancement tools that prepare the images for subsequent orthorectification, information extraction and GIS analysis. This includes Look Up Table (LUT) stretch, histogram equalization, natural color and much more.
Image Analysis for ArcGIS also provides the necessary image utilities required to complete your GIS project. These utilities assist with the creation of new images, sub-setting, reprojecting and layer stacking.
Creating 'GIS - Ready' Imagery
Image Analysis for ArcGIS supports imagery derived from a variety of sensors amd empowers the GIS professional to prepare imagery. Once the imagery is prepared, it can be used as a base map for mapping applications or as a first generation (oriented image) data source for extracting second generation data (feature datasets). Image Analysis for ArcGIS supports the orthorectification of aerial camera, Landsat, SPOT, IKONOS, and QuickBird imagery. Once images are orthorectified they can be color balanced and mosaicked. These oriented images created by Image Analysis for ArcGIS can be used for accurate feature collection in Stereo Analyst for ArcGIS.
Extracting Information from 'GIS - Ready' Imagery
Information associated with the earth's surface can be automatically extracted from imagery. Land cover information for an entire image can be extracted and additional analysis based on the derived information can be done within ArcMap using Spatial Analyst. Image Analysis for ArcGIS supports both supervised and unsupervised (Isodata) multi-spectral classification. A region growing seed tool is available for automatically extracting features from imagery. In addition, a variety of vegetation indices are available for determining healthy vegetation.
Analyzing Images for Information
Image Analysis for ArcGIS is designed to perform image analysis by combining multiple raster datasets to derive intelligent information. Multiple images can be combined to perform spatial and non-spatial image analysis. For example, images of the same area collected in different time intervals can be combined for change detection analysis. The type of change (qualitative) and the amount of change (quantitative) can be extracted and subsequently used for additional analysis in ArcGIS. Using the image processing tools in Image Analysis for ArcGIS. Combining these capabilities allows for the extraction of even more information from imagery and raster datasets.
Empowering the GIS Professional
Image Analysis for ArcGIS allows the visual content of an image to be transformed to accurate, reliable GIS data stored in a multi-user geospatial database.
Image Analysis is an ideal software package to introduce a GIS professional to the benefits of image processing.
