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ISIS Application Documentation


vikfixtrx

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Fix null tracks in a Viking image plane

Overview Parameters Example 1

Description

This program checks for NULL tracks in the seven tracks of a Viking image cube. If the percentage of pixels in a line of a track meets or exceeds the THRESHLD value, then that track is considered bad and the program will replace all NULL values in that track. It does this replacement by using valid pixels from each side of the track to perform an interpolation to calculate the new pixel value.

Categories


Related Objects and Documents

Applications


History

Elizabeth Ribelin2005-04-21 Original version
Elizabeth Miller2005-11-15 Made changes to appTest.xml (viking data area split into viking1 and viking2)
Elizabeth Miller2006-03-03 Modified documentation to be more accurate

Parameter Groups

Files

Name Description
FROM Input file null tracks will be removed from
TO Output cube

Values

Name Description
THRESHLD Threshhold Percentage
X

Files: FROM


Description

The cube to be filtered. All null tracks in each line of the cube will be filled in using a 5x5 low pass filter.

Type cube
File Mode input
Filter *.cub
Close Window
X

Files: TO


Description

The resultant cube containing the filtered data.

Type cube
File Mode output
Filter *.cub
Close Window
X

Values: THRESHLD


Description

The threshhold percentage value for determining a bad track. If the percentage of pixels in a line of a track meets or exceeds the THRESHLD value, then that track is considered bad. Defaults to 90.0.

Type double
Default 90.0
Close Window

Example 1

Viking image filtered

Description

This example shows the vikfixtrx application. The threshhold percentage value is defaulted to 90.0.

Command Line

vikfixtrx f=../f387a06.cub t=vikfixtrx-out.cub
Just filter a Viking image.

GUI Screenshot

Vikfixtrx Gui

Example Gui

Screenshot of GUI with parameters filled in to perform a vikfixtrx operation on the input image.

Input Image

Input Viking image

Input image for mirror

Parameter Name: FROM

This is the input image for the vikfixtrx example.

Output Image

Output image showing results of the vikfixtrx application.

Output image for mirror

Parameter Name: TO

This is the output image that results.