<< Click to Display Table of Contents >> Navigation:  Help Content > General Tools > Data Export > General Tools - Generate SIDD

Purpose

 

A Sensor Independent Derived Data (SIDD) format for SAR products as 8 bit nitf image can be obtained from any SARscape product. This tool is mostly intended to optimize the scaling of the original histogram for image visualization purposes. If used for generating the nitf image of an interferogram, it enables to display the interferometric fringes with the classical color look up table.

More information can be found in https://github.com/ngageoint/six-library/wiki/Sensor-Independent-Derived-Data-(SIDD)-Standard.

 

Technical Note

The histogram scaling is performed using the following formula:

 

output value = 1+(254 .  0.33333 . Scale . input valueexponent ) / Mean value

 

SIDD format  provides its best performance for calibrated geocoded data.

 

 

Input Files

 

Input file list

Input file name(s) of the data to be processed (_geo extension preferably) . This file is mandatory.

 

Parameters - principal Parameters

 

Scale Factor

Changing this value affects the output image brightness: the higher this value the brighter the image.

 

Output Type

It allows selecting 8 bits or 16 bits.

 

Parameters - Global

 

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

 

Parameters - Other Parameters

 

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

 

Output Files

 

Output file list

Output file name(s) of the extracted data. This file is mandatory.

 

_siddl.nitf        

nitf image and corresponding header file (.sml).

 

 

Details specific to the Units of Measure and Nomenclature of the output products can be found in the Data Format section.

 

General Functions

 

Exec

The processing step is executed.

 

Store Batch        

The processing step is stored in the batch list. The Batch Browser button allows to load the batch processing list.

 

Close        

The window will be closed.

 

Help

Specific help document section.

 

 

Specific Function(s)

 

None.

 

References

 

None.