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Satellites In Space Mapped Beautifully

Have you imagined how satellites have surrounded earth surface 
Click ESRI satellite Map which beautifully visualizes all satellites surrounding earth.
Image Source: ESRI Satellite Map

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GDAL & OGR (Importance & Installation)

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“Rule Based Classification” using eCognition

Availability of high resolution satellite imagery leads to a growing number of change detection techniques and algorithms,  research is done using remote sensing and GIS. In this tutorial, we build on the classification category feature set by introducing neighborhood relationships and topological functions. Secondly, we use relative elevation values and fuzzy rules for the classification systems. This study demonstrates that the rule-based classifier is a significantly better approach than the classical per-pixel classifiers & object based NN method . Image Source: NASA  Methodology 1.    Open the eCognition software. 2.    Click on “create new project” option. 3.    Import the “Study area image” from the workspace. 4.    Assign weights to NIR band 5.    Click on the layers and rename each layer. Layer 1 as blue, layer 2 as green, and 3rd as red and 4th NIR. 6.   Go to “Process” option on t...
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Working With Raster Calculator In ArcMap

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What is Radiometric Resolution Of Satellite Image

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Learning Object Based Classification Using eCognition

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GeoDa Free GIS Software

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Generating Contours From DEM In ArcMap

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Perform Multiple Image Segmentation Techniques On High Resolution Image Using eCognition

Remote sensing & Digital Image Processing offers a wide variety of digital imagery that covers most of the Earth’s surface. This up-to-date image data is a tool for producing accurate land cover maps. To maximize the benefit of such data, automatic and efficient classification methods are needed. To achieve this objective (for the past years), pixel-based classification has been extensively used. Currently the prospects of a new classification concept, object-based classification , are being investigated. Recent studies have proven the advantages  of the new concept over traditional classifiers. The new concept’s basic principle is to make use of important information (shape, texture and contextual information) that is present only in meaningful image objects and their mutual relationships. What is Image Segmentation?    In remote sensing, the process of image segmentation is defined as: “the search for homogeneous  regions in an image and later t...
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How To View Satellite Image In ArcMap

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Climate Change Not Myth But Reality

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