Many time when we are doing analysis of raster files we need a single feature in a single raster file. this can be easily done by a facility “Extract by Attribute” avilable in ArcMap.
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A ground truth image is the image prepaired by user on the basis of ground verification and it is used for varifying the accuracy of any stastical classification. We usually classify images using various classifiers such as Parallelepiped , Fuzzy, Minimum distance , Maximum Likelihood classification etc. To verify the accuracy of these classifications we usually go for Error Matrix Analysis (Accuracy Assesment) in IDRISI, where this module is avilable with name of ERRMAT. read More.. 9/4/09-The Internet has made it increasingly simpler to create maps or mashups that we can upload and share out on the Web, use personally, or apply at our place of work. Typically, when we want to create a map, we are attempting to communicate something to people. We want our map to get our point [...] Assad Reichdan, Consultant for the Bureau of Indian Affairs, explains how the bureau uses GIS to manage a multitude of irrigation projects. ESRI ArcGIS Server, combined with IBM’s Maximo, also provides an interactive work order and asset management system for the organization. Share : Consumers may think of geographic information systems (GIS) as Web applications they use to get maps and directions, but GIS tools do a lot more than help people get from location A to location B. Share : The oldest bureau of the United States Department of the Interior, the Bureau of Indian Affairs (BIA), was established in 1824. Share : Tune in to an ESRI live training seminar and get started using the ArcGIS API for Microsoft Silverlight/WPF. Share : I took my 2 boys to Navy Pier while traveling to Chicago last week. We went on the Seadog “Extreme” which is a fast powerboat ride on Lake Michigan. Share : 08/04/09-View a demo from the UC Plenary about ArcGIS Online Content from ESRI’s Christophe Carpentier. Share : Faster performance, easier reporting and sharing, and improved access to online maps are key productivity enhancements of new release. Share : |
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