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1. robertsgeospatial.com.au › raster-size-conceptsRaster Size Concepts Explained – How big is my raster?

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   The file size is the sum, expressed as the number of bytes, of all the files that are used to store the raster. In other words, it is the amount of storage space used on your HDD, SDD or Cloud Drive to store a raster. The grid size is the number of cells in a raster, usually expressed as the product of the number of columns and rows.

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2. desktop.arcgis.com › cell-size-of-raster-dataCell size of raster data—ArcMap | Documentation - Esri

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   ArcMap. Cell size of raster data. The level of detail (of features/phenomena) represented by a raster is often dependent on the cell (pixel) size, or spatial resolution, of the raster. The cell must be small enough to capture the required detail but large enough so computer storage and analysis can be performed efficiently.

3. Videos

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     Changing the cell size of a Raster (Resampling) using ArcGIS

     Feb 9, 2019

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     Introduction to Raster Data in GIS

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     How to Change Cell/Pixel Size (Resampling) of a Raster Using ArcGIS

     Dec 19, 2022

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4. gisgeography.com › spatial-data-types-vector-rasterVector vs Raster in GIS: What’s the Difference?

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   What are the advantages of raster data? A raster grid format is a data model for satellite data and other remote sensing data. For raster positions, it’s simple to understand cell size. Map algebra with raster data is usually quick and easy to perform. Overall, quantitative analysis is intuitive with discrete or continuous rasters.

5. pro.arcgis.com › introduction-to-raster-dataIntroduction to image and raster data - Esri

   pro.arcgis.com › introduction-to-raster-data

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   In the example below, if the raster is in a Universal Transverse Mercator (UTM) projected coordinate system and has a pixel size of 100, the pixel location at 5,1 is 300,500 East, 5,900,600 North. When you need to specify the extent of an image, the extent is defined by the top, bottom, left, and right coordinates of the rectangular area covered by the image, as shown below.

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6. desktop.arcgis.com › en › arcmapWhat is raster data?—ArcMap | Documentation - Esri

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   In its simplest form, a raster consists of a matrix of cells (or pixels) organized into rows and columns (or a grid) where each cell contains a value representing information, such as temperature. Rasters are digital aerial photographs, imagery from satellites, digital pictures, or even scanned maps. Data stored in a raster format represents ...

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7. en.wikipedia.org › wiki › Raster_graphicsRaster graphics - Wikipedia

   en.wikipedia.org › wiki › Raster_graphics

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   The size of each square pixel, known as the resolution or support, is constant across the grid. Raster or gridded data may be the result of a gridding procedure. A single numeric value is then stored for each pixel. For most images, this value is a visible color, but other measurements are possible, even numeric codes for qualitative categories.

8. People also ask

   What is a raster grid format?

   • A raster grid format is a data model for satellite data and other remote sensing data. For raster positions, it’s simple to understand cell size. Map algebra with raster data is usually quick and easy to perform. Overall, quantitative analysis is intuitive with discrete or continuous rasters.

   Vector vs Raster in GIS: What’s the Difference?

   gisgeography.com/spatial-data-types-vector-raster/

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   What is the difference between pixel size and raster size?

   • This means the cell size of the data in the left image is larger than that of the data in the right image; however, the scale at which each is displayed is the same. Effect of increased data resolution with the scale constant. The size of the cell (pixel) determines the level of detail that can be represented in a raster.

   Cell size of raster data—ArcMap | Documentation - Esri

   desktop.arcgis.com/en/arcmap/latest/manage-data/raster-and-images/cell-size-of-raster-data.htm

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   What is raster data?

   • Raster or gridded data may be the result of a gridding procedure. A single numeric value is then stored for each pixel. For most images, this value is a visible color, but other measurements are possible, even numeric codes for qualitative categories. Each raster grid has a specified pixel format, the data type for each number.

   Raster graphics - Wikipedia

   en.wikipedia.org/wiki/Raster_graphics

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   What pixel format does a raster grid have?

   • Each raster grid has a specified pixel format, the data type for each number. Common pixel formats are binary, gray-scale, palettized, and full-color, where color depth determines the fidelity of the colors represented, and color space determines the range of color coverage (which is often less than the full range of human color vision).

   Raster graphics - Wikipedia

   en.wikipedia.org/wiki/Raster_graphics

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   Why are raster datasets so big?

   • Raster datasets can become potentially very large because they record values for each cell in an image. As resolution increases, the size of the cell decreases. But this comes at a cost for speed of processing and data storage. It’s not always straightforward which spatial data type you should use for your maps.

   Vector vs Raster in GIS: What’s the Difference?

   gisgeography.com/spatial-data-types-vector-raster/

   See all results for this question

   How much detail does a raster represent?

   • The level of detail (of features/phenomena) represented by a raster is often dependent on the cell (pixel) size, or spatial resolution, of the raster. The cell must be small enough to capture the required detail but large enough so computer storage and analysis can be performed efficiently.

   Cell size of raster data—ArcMap | Documentation - Esri

   desktop.arcgis.com/en/arcmap/latest/manage-data/raster-and-images/cell-size-of-raster-data.htm

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9. atlas.co › glossary › raster-dataRaster Data - Definitions & FAQs - Atlas

   atlas.co › glossary › raster-data

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   Raster data, in the field of Geographic Information Systems (GIS), is a type of geospatial data that is represented in a grid or a matrix format. It comprises pixels or cells, with each pixel having specific geographic coordinates and a value that represents a particular characteristic or attribute. Raster data is majorly used to represent ...