GBDX

ENVI® Training Classification Statistics

This task computes statistics from classification training regions.

GBDX Registered Name: ENVI_TrainingClassificationStatistics

Provider: Harris Geospatial Solutions

Inputs

The following table lists all ENVI_TrainingClassificationStatistics inputs.
Mandatory (optional) settings are listed as Required = True (Required = False).

Name Required Default Valid Values Description
file_types False N/A string GBDX Option. Comma seperated list of permitted file type extensions. Use this to filter input files -- Value Type: STRING[*]
input_raster True N/A See ENVIRASTER input type Specify a raster from which to generate statistics. -- Value Type: ENVIRASTER
input_raster_format False N/A See ENVIRASTER input type Provide the format of the image, for example: landsat-8. -- Value Type: STRING
input_raster_band_grouping False N/A See ENVIRASTER input type Provide the name of the band grouping to be used in the task, ie - panchromatic. -- Value Type: STRING
input_raster_filename False N/A See ENVIRASTER input type Provide the explicit relative raster filename that ENVI will open. This overrides any file lookup in the task runner. -- Value Type: STRING
input_vector True N/A See ENVIVECTOR input type Specify a vector that defines training regions for a raster. Statistics will be calculated from this vector. The vector attributes should include CLASS_NAME and CLASS_CLRS fields, if class names and class colors are desired. The CLASS_CLRS field should contain one RGB triplet representing a color for each class. -- Value Type: ENVIVECTOR

Outputs

The following table lists all ENVI_TrainingClassificationStatistics outputs.
Mandatory (optional) settings are listed as Required = True (Required = False).

Name Required Default Valid Values Description
task_meta_data False N/A directory GBDX Option. Output location for task meta data such as execution log and output JSON
class_colors True N/A string This is an array of RGB triplets representing the class colors as defined by the input vector. -- Value Type: BYTEARRAY
covariance True N/A string This is the covariance matrix of the training data, returned as a double-precision array `[number of bands, number of bands, number of classes]. -- Value Type: DOUBLEARRAY
stddev True N/A string This is the standard deviation of the training data, returned as a double-precision array `[number of bands, number of classes]. -- Value Type: DOUBLEARRAY
class_pixel_count True N/A string This is the number of pixels used to compute the training statistics, returned as a long-integer array `[number of classes]. -- Value Type: LONGARRAY
class_names True N/A string This is an array of class names as defined by the input vector. -- Value Type: STRINGARRAY
mean True N/A string This is the mean of the training data, returned as a double-precision array `[number of bands, number of classes]. -- Value Type: DOUBLEARRAY

Output structure

Background

For additional background information on this task please refer to the Harris Geospatial ENVI documentation and
ENVI® Training Classification Statistics.

Contact

If you have any questions or issues with this task, please contact gbdx-support@digitalglobe.com.

ENVI® Training Classification Statistics

This task computes statistics from classification training regions.

GBDX Registered Name: ENVI_TrainingClassificationStatistics

Provider: Harris Geospatial Solutions