GBDX

ENVI® Bit Error Adaptive Filter

This task applies a bit error adaptive filter to a raster, to remove bit-error noise, which is usually the result of spikes in the data caused by isolated pixels that have extreme values unrelated to the image scene.

GBDX Registered Name: ENVI_BitErrorAdaptiveFilter
Provider: Harris Geospatial Solutions

Inputs

The following table lists all ENVI_BitErrorAdaptiveFilter 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 on which to perform bit error adaptive filtering. -- 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
window_size False 3 string Specify a square filtering window size. -- Value Type: UINT -- Default Value: 3
valid_maximum False N/A string Specify the maximum value for valid data. -- Value Type: DOUBLE
valid_minimum False N/A string Specify the minimum value for valid data. -- Value Type: DOUBLE
replace_bit_errors False false string Specify !true to replace bit errors with the local average. Specify !false to set bad pixels to zero. -- Value Type: BOOLEAN -- Default Value: false
noise_standard_deviations False 1.0 string Specify the noise standard deviation. -- Value Type: DOUBLE -- Default Value: 1.0
tolerance False 5.0 string Specify the maximum standard deviation tolerance. -- Value Type: DOUBLE -- Default Value: 5.0
output_raster_uri_filename False N/A string Specify a string with the fully-qualified path and filename for OUTPUT_RASTER. -- Value Type: STRING

Outputs

The following table lists all ENVI_BitErrorAdaptiveFilter 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
output_raster_uri True N/A directory Output for OUTPUT_RASTER. -- Value Type: ENVIURI

Output structure

The output_raster_uri file will be written to the specified S3 Customer Account Location.

Background

For additional background information on this task please refer to the Harris Geospatial ENVI documentation and
ENVI® Bit Error Adaptive Filter.

Contact

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

ENVI® Bit Error Adaptive Filter

This task applies a bit error adaptive filter to a raster, to remove bit-error noise, which is usually the result of spikes in the data caused by isolated pixels that have extreme values unrelated to the image scene.

GBDX Registered Name: ENVI_BitErrorAdaptiveFilter
Provider: Harris Geospatial Solutions