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Raster Data Processing

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Filtering

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Filtering applies a kernel or window of coefficients over raster data to enhance features or reduce noise, often used in image processing.

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NDVI Calculation

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Normalized Difference Vegetation Index (NDVI) calculation is used to measure vegetation health by comparing the difference between near-infrared and visible red light reflected by plants.

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Pan-sharpening

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Pan-sharpening combines higher-resolution panchromatic data with lower-resolution multispectral data to produce an image with the best qualities of both.

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Density Slicing

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Density slicing segments a continuous raster’s pixel values into discrete ranges to facilitate data visualization and interpretation.

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Zonal Statistics

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Zonal statistics calculates summary statistics (e.g., mean, sum, max, min) for raster data within specified zones, often used in habitat and land use analysis.

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Raster to Vector Conversion

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Raster to vector conversion is the transformation of raster data, such as pixels, into vector format, such as points, lines, or polygons, facilitating analysis in different GIS applications.

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Radiometric Correction

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Radiometric correction is performed to correct a raster image for sensor irregularities and atmospheric conditions, improving the data accuracy.

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Mosaicking

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Mosaicking is the process of spatially combining multiple raster datasets to create a continuous image, useful for creating large-area maps.

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Reclassification

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Reclassification involves altering the pixel values of a raster dataset based on a set of criteria, typically to simplify or tailor the data for specific analysis.

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Buffer Generation

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Buffer generation creates zones of a specified distance around raster features, often used in proximity analysis and environmental impact studies.

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Cost Surface Analysis

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Cost surface analysis assigns each raster cell a cost based on the effort or resources needed to traverse that cell, aiding in optimal path and site selection applications.

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Contrast Stretching

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Contrast stretching enhances the dynamic range of raster image pixel values, often to improve visualization of features in imagery data.

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Resampling

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Resampling is the process of interpolating new pixel values while transforming raster data, often due to changes in resolution or coordinate transformation.

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Spatial Interpolation

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Spatial interpolation predicts unknown values across a surface based on known data points, used in creating continuous raster surfaces from point data.

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Subsetting

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Subsetting extracts a smaller area or selection from a larger raster dataset, often for reducing the dataset size or focusing on an area of interest.

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