Main menu

Pages

Edit post

Build Pyramids and Statistics and Raster Attribute Table, Calculate Statistics, Convert Raster Function Template

Husam Jubeh
(0)

Build Pyramids and Statistics and Raster Attribute Table, Calculate Statistics, Convert Raster Function Template Tools

Build Pyramids and Statistics

How to Build Pyramids and Statistics Tool in Arc Toolbox ArcMap ArcGIS??

Build Pyramids and Statistics Tool
Build Pyramids and Statistics

Path to access the tool

:

Build Pyramids and Statistics Tool, Raster Properties Toolset, Raster Box, Data Management Tools Toolbox

 

Build Pyramids and Statistics

Traverses a folder structure, building pyramids and calculating statistics for all the raster datasets it contains. It can also build pyramids and calculate statistics for all the items in a mosaic dataset.

1.    Input Data or Workspace

The workspace that contains all the raster datasets to be processed, a mosaic dataset, or a raster catalog.

If the workspace includes a raster catalog or mosaic dataset, these items will not be included when the tool runs.

2.    Include Sub-directories (optional)

Specify whether to include subdirectories.

  1. Unchecked—Does not include subdirectories.
  2. Checked—Includes all the raster datasets within the subdirectories when loading. This is the default.

Raster catalogs and mosaic datasets must be specified as the input workspace. If the workspace includes a raster catalog or mosaic dataset, these items will not be included when the tool runs.

3.    Build Pyramids (optional)

Specify whether to build pyramids.

  1. Unchecked—Does not build pyramids.
  2. Checked—Builds pyramids. This is the default.

4.    Calculate Statistics (optional)

Specify whether to calculate statistics.

  1. Unchecked—Does not calculate statistics.
  2. Checked—Calculates statistics. This is the default.

5.    Skip Existing (optional)

Specify whether to calculate statistics only where they are missing, or regenerate them even if they exist.

  1. Checked—Statistics will only be calculated if they do not already exist. This is the default.
  2. Unchecked—Statistics will be calculated even if they already exist; existing statistics will be overwritten.

6.    Include Source Datasets (optional)

Specify whether to build pyramids and calculate statistics on the source raster datasets, or calculate statistics on the raster items in a mosaic dataset. This option only applies to mosaic datasets.

  1. Unchecked—Statistics will be calculated for each raster item in the mosaic dataset (on each row in the attribute table). Any functions added to the raster item will be applied before generating the statistics. This is the default.
  2. Checked—Builds pyramids and calculates statistics on the source data of the mosaic dataset.

7.    Block Field (optional)

The name of the field within a mosaic dataset's attribute table used to identify items that should be considered one item when performing some calculations and operations.

8.    Estimate Mosaic Dataset Statistics (optional)

Specify whether to calculate statistics for the mosaic dataset (not the rasters within it). The statistics are derived from the existing statistics that have been calculated for each raster in the mosaic dataset.

  1. Unchecked—Statistics are not calculated for the mosaic dataset. This is the default.
  2. Checked—Statistics will be calculated for the mosaic dataset.

9.    Number of Columns to Skip (optional)

The number of horizontal pixels between samples.

A skip factor controls the portion of the raster that is used when calculating the statistics. The input value indicates the horizontal or vertical skip factor, where a value of 1 will use each pixel and a value of 2 will use every second pixel. The skip factor can only range from 1 to the number of columns/rows in the raster.

A skip factor controls the portion of the raster that is used when calculating the statistics. The input value indicates the horizontal or vertical skip factor, where a value of 1 will use each pixel and a value of 2 will use every second pixel. The skip factor can only range from 1 to the number of columns/rows in the raster.

The value must be greater than zero and less than or equal to the number of columns in the raster. The default is 1 or the last skip factor used.

10. Number of Rows to Skip (optional)

The number of vertical pixels between samples.

A skip factor controls the portion of the raster that is used when calculating the statistics. The input value indicates the horizontal or vertical skip factor, where a value of 1 will use each pixel and a value of 2 will use every second pixel. The skip factor can only range from 1 to the number of columns/rows in the raster.

A skip factor controls the portion of the raster that is used when calculating the statistics. The input value indicates the horizontal or vertical skip factor, where a value of 1 will use each pixel and a value of 2 will use every second pixel. The skip factor can only range from 1 to the number of columns/rows in the raster.

The value must be greater than zero and less than or equal to the number of rows in the raster. The default is 1 or the last y skip factor used.

11. Ignore Values (optional)

The pixel values that are not to be included in the statistics calculation.

The default is no value.

12. Pyramid levels (optional)

Choose the number of reduced-resolution dataset layers that will be built. The default value is -1, which will build full pyramids. A value of 0 will result in no pyramid levels.

The maximum number of pyramid levels you can specify is 29. Any value of 30 or higher will create a full set of pyramids.

13. Skip first level (optional)

Choose whether to skip the first pyramid level. Skipping the first level will take up slightly less disk space, but it will slow down performance at these scales.

  1. Unchecked—The first pyramid level will be built. This is the default.
  2. Checked—The first pyramid level will not be built.

14. Pyramid resampling technique (optional)

The resampling technique used to build your pyramids.

  1. NEAREST—This method uses the value of the closest cell to assign a value to the output cell when resampling. This is the default.
  2. BILINEAR—This method determines the new value of a cell based on a weighted distance average of the four nearest input cell centers.
  3. CUBIC—This method determines the new value of a cell based on fitting a smooth curve through the 16 nearest input cell centers.

15. Pyramid compression type (optional)

The compression type to use when building the raster pyramids.

  1. DEFAULT—If the source data is compressed using a wavelet compression, it will build pyramids with the JPEG compression type; otherwise, LZ77 will be used. This is the default compression method.
  2. LZ77—The LZ77 compression algorithm will be used to build the pyramids. LZ77 can be used for any data type.
  3. JPEG—The JPEG compression algorithm to build pyramids. Only data that adheres to the JPEG compression specification can use this compression type. If JPEG is chosen, you can then set the Compression Quality.
  4. JPEG_YCBCR—A lossy compression using the luma (Y) and chroma (Cb and Cr) color space components.
  5. NONE—No compression will be used when building pyramids.

16. Compression quality (1-100) (optional)

The compression quality to use when pyramids are built with the JPEG compression method. The value must be between 0 and 100. The values closer to 100 will produce a higher-quality image, but the compression ratio will be lower.

Build Raster Attribute Table

How to Build Raster Attribute Table Tool in Arc Toolbox ArcMap ArcGIS??

Build Raster Attribute Table Tool
Build Raster Attribute Table

Path to access the tool

:

Build Raster Attribute Table Tool, Raster Properties Toolset, Raster Box, Data Management Tools Toolbox

 

Build Raster Attribute Table

Create or update a table with information about the classes in your raster datasets. This is used primarily with discrete data.

1.    Input Raster

Select a single band raster dataset that you want to add a table to. This tool will not run if the pixel type is floating point or double precision.

2.    Overwrite (optional)

Check this box to overwrite the existing table. Leave this box unchecked to append columns and rows to the existing table.

  1. Unchecked—Existing raster attribute tables will not be overwritten, and any edits will be appended to the current table. This is the default.
  2. Checked—Delete the existing raster attribute tables and create a new raster attribute table.

Calculate Statistics

How to Calculate Statistics Tool in Arc Toolbox ArcMap ArcGIS??

Calculate Statistics Tool
Calculate Statistics

Path to access the tool

:

Calculate Statistics Tool, Raster Properties Toolset, Raster Box, Data Management Tools Toolbox

 

Calculate Statistics

Calculates statistics for a raster dataset or mosaic dataset.

Statistics are required for your raster and mosaic datasets to perform certain tasks, such as applying a contrast stretch or classifying your data.

1.    Input Raster Dataset

The input raster dataset or mosaic dataset.

2.    Number of Columns to Skip (optional)

The number of horizontal pixels between samples.

A skip factor controls the portion of the raster that is used when calculating the statistics. The input value indicates the horizontal or vertical skip factor, where a value of 1 will use each pixel and a value of 2 will use every second pixel. The skip factor can only range from 1 to the number of columns/rows in the raster.

The value must be greater than zero and less than or equal to the number of columns in the raster. The default is 1 or the last skip factor used.

The skip factors for raster datasets stored in a file geodatabase or an enterprise geodatabase are different. First, if the x and y skip factors are different, the smaller skip factor will be used for both the x and y skip factors. Second, the skip factor is related to the pyramid level that most closely fits the skip factor chosen. If the skip factor value is not equal to the number of pixels in a pyramid layer, the number is rounded down to the next pyramid level, and those statistics are used.

3.    Number of Rows to Skip (optional)

The number of vertical pixels between samples.

A skip factor controls the portion of the raster that is used when calculating the statistics. The input value indicates the horizontal or vertical skip factor, where a value of 1 will use each pixel and a value of 2 will use every second pixel. The skip factor can only range from 1 to the number of columns/rows in the raster.

The value must be greater than zero and less than or equal to the number of rows in the raster. The default is 1 or the last y skip factor used.

The skip factors for raster datasets stored in a file geodatabase or an enterprise geodatabase are different. First, if the x and y skip factors are different, the smaller skip factor will be used for both the x and y skip factors. Second, the skip factor is related to the pyramid level that most closely fits the skip factor chosen. If the skip factor value is not equal to the number of pixels in a pyramid layer, the number is rounded down to the next pyramid level, and those statistics are used.

4.    Ignore Values (optional)

The pixel values that are not to be included in the statistics calculation.

The default is no value, or the last ignore values used.

5.    Skip Existing (optional)

Specify whether to calculate statistics only where they are missing or regenerate them even if they exist.

  1. Unchecked—Statistics will be calculated even if they already exist; therefore, existing statistics will be overwritten. This is the default.
  2. Checked—Statistics will only be calculated if they do not already exist.

6.    Area of Interest (optional)

Specify your an area in the dataset from where you want the statistics to be calculated, so they are not generated from the entire dataset. You can either browse to a feature class, or you can create a polygon graphic on the display.

Convert Raster Function Template

How to Convert Raster Function Template Tool in Arc Toolbox ArcMap ArcGIS??

Convert Raster Function Template Tool
Convert Raster Function Template

Path to access the tool

:

Convert Raster Function Template Tool, Raster Properties Toolset, Raster Box, Data Management Tools Toolbox

 

Convert Raster Function Template

Converts a raster function template between formats (rft.xml, json, and binary).

1.    Input Raster Function Template

The input raster function template file. The input template file can be XML, JSON, or binary format.

2.    Output Raster Function Template File

The output raster function template file path and file name.

3.    Format (optional)

The output function template file format.

  1. XML—XML output format.
  2. JSON—JSON output format. This is the default.
  3. BINARY—Binary output format.

Latest articles from : Data Management

Comments

Post a Comment

table of contents title