Remote Sensing

Remote sensing (RS) is an art and science of obtaining information about physical characteristics of an area by measuring its reflected and emitted radiation at a distance to help of Satellite or Aircraft.

In below list of Remote sensing Analysis Tutorial.

Change Detection

Change Detection in Remote Sensing using Erdas Imagine In this Tutorial Learn Change Detection in Remote Sensing using Erdas Imagine Software Change Detection is a process that measures a particular area that has changed between two or more periods. It has been widely used to evaluate shifting agriculture, deforestation, urban growth, the impact of natural …

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Unsupervised Classification – Erdas Imagine

Unsupervised Classification in Erdas Imagine Unsupervised Classification is called clustering because it is based on the natural groupings of pixels in image data when they are plotted in feature space. Perform Unsupervised Classification in Erdas Imagine in using the ISODATA algorithm. The ISODATA clustering method uses the minimum spectral distance formula to form clusters. ISODATA clustering: The maximum number of …

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Supervised Classification – Erdas Imagine

Supervised Classification in Erdas Imagine Supervised Classification describes information about the data of land use as well as land cover for any region. Soil type, Vegetation, Water bodies, Cultivation, etc. In this Tutorial learn Supervised Classification Training using Erdas Imagine software. First, set Preferences to find out Input and Output Directory. Launch Erdas Imagine software, Click File button > Preferences. …

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NDVI, NDBI, NDSI, SAVI

NDVI, NDBI, NDSI, SAVI- Erdas Imagine NDVI Normalized Difference Vegetation Index(NDVI) describes the vegetation density and assessing changes in plant health. NDVI is calculated as a ratio between the red (R) and near-infrared (NIR). In this tutorial learn how to apply the NDVI formula and calculate vegetation patterns. NDVI Formula (NIR – R) / (NIR + R) In Landsat 4-7, NDVI = …

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Raster Processing- Layer stack, subset and mosaic

Raster Processing- Layer stack, Subset and Mosaic- Erdas Imagine A Raster image processor is a component used in a printing system which produces a raster image also known as a Bitmap. In this Tutorial expalne and create 3 Raster image processing method using Erdas Imagine software. There are- Layer stack, Subset and Mosaic. Layer stack …

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