ISIS Application Documentation
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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.
CategoriesRelated Objects and DocumentsApplicationsHistory
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| U.S. Department of the Interior | U.S. Geological Survey ISIS | Privacy & Disclaimers | Astrogeology Research Program To contact us, please post comments and questions on the USGS Astrogeology Discussion Board To report a bug, or suggest a feature go to: ISIS Github File Modified: 02/21/2025 20:06:07 |
Parameter GroupsFiles
Values
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| U.S. Department of the Interior | U.S. Geological Survey ISIS | Privacy & Disclaimers | Astrogeology Research Program To contact us, please post comments and questions on the USGS Astrogeology Discussion Board To report a bug, or suggest a feature go to: ISIS Github File Modified: 02/21/2025 20:06:07 |
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 |
Files: TO
Description
The resultant cube containing the filtered data.
| Type | cube |
|---|---|
| File Mode | output |
| Filter | *.cub |
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 |
Example 1Viking 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
Input Image
Output Image
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![Vikfixtrx Gui](javascript:popUpNewWindow ("assets/image/VikfixtrxGui.JPG",441, 221))
![Input Viking image](javascript:popUpNewWindow ("assets/image/f387a06.jpg",500, 500))
![Output image showing results of the vikfixtrx application.](javascript:popUpNewWindow ("assets/image/vikfixtrx-out.jpg",500, 500))
| U.S. Department of the Interior | U.S. Geological Survey ISIS | Privacy & Disclaimers | Astrogeology Research Program To contact us, please post comments and questions on the USGS Astrogeology Discussion Board To report a bug, or suggest a feature go to: ISIS Github File Modified: 02/21/2025 20:06:07 |