ISIS 3 Application Documentation
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Create a mosaic using map projected cubes
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This program allows the user to create a mosaic using a map projected cube (Level2). A mosaic can be created from an initial cube or the input cube can be placed in a pre-existing mosaic.
REQUIREMENT: The input cube must be map projected (Level2). The input cube is required to be projected to the EXACT SAME ProjectionName, PixelResolution (or MapScale), EquatorialRadius, PolarRadius, LatitudeType, LongitudeDirection, as well as specific map projection keywords (e.g., CenterLatitude, CenterLongitude). If these map projection requirements are not met, an error will be encountered.
Note: The latitude and longitude range of the individual input cubes may vary.If a new mosaic is to be created, it must be intialized with an input cube and CREATE=YES. The default size of the output mosaic will be the SAME latitude and longitude extents of the input file. The size of the output mosaic can be entered by the user through the any or all four boundary parameters: MINLAT, MAXLAT, MINLON, MAXLON. The input cube also establishes the number of bands and BandBin Group of the output mosaic. If there are list of input cubes to mosaic together refer to the similiar application called automos.
Integrity-check Parameters:
MATCHBANDBIN = TRUE, the default is to require all the bandbin group and wavelength keywords of the input cube files exactly match the output mosaic.
MATCHDEM = FALSE, the default does not check the SHAPEMODEL keyword of the input cube files and does not propogate what DEM Shapemodel that was used when the input files were projected.
The PRIORITY parameter will determine how each input cube is combined with the current output mosaic cube. The process involves replacing an output mosaic pixel (or not) with an input pixel at the same location. There are many user options and criteria that influence the pixel replacement. Use of the PRIORITY parameter with and without other options is explained in the tables and descriptions below.
The Track feature creates a band in the output mosaic file containing the index values for every pixel in the output mosaic. The Track-band can only be used appropriately through the QVIEW-AdvancedTracking tool. As the user interactively pans across the displayed mosaic band (Band1), for every mosaic pixel location QVIEW-AdvancedTracking will report the source cube filename that was input to automos. The Track-band cannot be used outside the QVIEW-AdvancedTracking tool. Hence the file (byte) size of the mosaic is increased due to the track-band.
The Track feature works with Priority options ONTOP (with HIGHSATURATION and LOWSATURATION parameters) and BENEATH for single band input cubes. It does NOT support multiple band input cubes with these priority options. It does work for multiband cubes when PRIORITY=BAND. Furthermore, this feature is NOT supported when PRIORITY=AVERAGE.
The following table describes how the program will determine the pixel value in the output mosaic for areas of image overlap.
PRIORITY | RESULT |
---|---|
ONTOP | This is the default. The current input image will be placed on top of the output mosaic. Thus in any area of overlap, the Valid pixel values for the current input image will appear in the output mosaic (it replaces the output mosaic pixel). Invalid input Special Pixels (NULL,HRS,HIS,LRS,LIS) will NOT replace an existing Valid output mosaic pixel. Refer to parameters HIGHSATURATION, LOWSATURATION, and NULL to override replacement of Valid output mosaic pixels. |
BENEATH | The current input image will be placed beneath the output mosaic. Thus in any area of overlap, the Valid pixel values for the current mosaic will remain in the output mosaic. The Valid pixel values for the current input image will only replace the NULL pixels values in the output mosaic. The HRS,HIS,LRS and LIS special pixel values in the output mosaic will NOT be replaced by the Valid input pixel. The parameters HIGHSATURATION, LOWSATURATION and NULL are not supported under this priority. |
BAND | The input image pixels will be placed in the output mosaic based on the "Lesser" or "Greater" criteria of a priority band defined by the user. Parameters that apply to this priority feature are TYPE, NUMBER, KEYNAME, KEYVALUE, CRITERIA. |
AVERAGE |
Overlapping Valid pixel values from the current input image and output mosaic will be
averaged for the new mosaic pixel values. A count-band is created with the output
mosaic file. The count-band keeps track of the number of images involved in the
averaging of the input dn values for each pixel in the mosaic. Invalid input pixel
values will not be included in the average. In the case where only one Valid pixel
exists between the input image pixels or the current mosaic pixel, the Valid pixel is
retained in the current output mosaic. Refer to parameters HIGHSATURATION,
LOWSATURATION, and NULL to override replacement of valid output mosaic pixels.
Choosing this priority will cause the mosaic to have twice the number of bands of the input image. Hence the file (byte) size of the mosaic is increased due to the count-bands. NOTE: If an existing mosaic does not already contain a count-band, an error will be encountered. |
Each of the following priority option tables indicates the resulting output pixel for a particular input pixel, given the selected special pixel options (parameters HIGHSATURATION for HRS, HIS; LOWSATURATION for LRS, LIS; and NULL) in each table row.
PRIORITY=ONTOP | |||||
---|---|---|---|---|---|
Options | Images | ||||
High Saturation | Low Saturation | Null | Input Pixel Value Type | Current Mosaic Pixel Value Type | Output Mosaic Pixel Value Source |
False | False | False | Valid | Special or Valid | Input |
False | False | False | Special | High Saturation or Low Saturation or Valid | Mosaic |
False | False | False | Special or Valid | Null | Input |
True or False | True or False | True | Valid | Special or Valid | Input |
True or False | True or False | True | Special | Special or Valid | Input |
PRIORITY=BENEATH | ||
---|---|---|
Input Pixel Value Type | Current Mosaic Pixel Value Type | Output Mosaic Pixel Value Source |
Special or Valid | Null | Input |
Special or Valid | High Saturation or Low Saturation or Valid | Mosaic |
PRIORITY=BAND | |||||
---|---|---|---|---|---|
Options | Images | ||||
High Saturation | Low Saturation | Null | Input Pixel Value Type | Current Mosaic Pixel Value Type | Output Mosaic Pixel Value Source |
False | False | False | Valid | Valid | Criteria based |
False | False | False | Valid | Special | Input |
False | False | False | Special | High Saturation or Low Saturation or Valid | Mosaic |
False | False | False | Special or Valid | Null | Input |
True or False | True or False | True | Special | Special or Valid | Input |
True or False | True or False | True | Valid | Valid | Criteria based |
True or False | True or False | True | Valid | Special | Input |
PRIORITY=AVERAGE | ||||||
---|---|---|---|---|---|---|
Options | Images | |||||
High Saturation | Low Saturation | Null | Input Pixel Value Type | Current Mosaic Pixel Value Type | Output Mosaic Pixel Value Source | Count Band Pixel Value (# of images used for average) |
False | False | False | Valid | Valid | Average | increment count by 1 |
False | False | False | Valid | Special | Input | count = 1 |
False | False | False | Special | Special | Mosaic | count = 0 |
False | False | False | Special | Valid | Mosaic | count unchanged |
True or False | True or False | True | Special | Special or Valid | Input | count = 0 |
True or False | True or False | True | Valid | Valid | Average | increment count by 1 |
True or False | True or False | True | Valid | Special | Input | count = 1 |
Refer to automos for additional information and examples.
Name | Description |
---|---|
FROM | Cube to be placed in the mosaic |
MOSAIC | Mosaic cube |
PRIORITY | The priority of pixel placement |
Name | Description |
---|---|
TYPE | Indicate the Band name or number to be used for comparison. |
NUMBER | Enter the Band Number |
KEYNAME | Enter the Keyword name as it appears in the BandBin Group |
KEYVALUE | Enter the value associated with the "KEYNAME" |
CRITERIA | Determines pixel placement given a band |
Name | Description |
---|---|
CREATE | Create the output mosaic |
TRACK | Track the source filename for each mosaic pixel |
MINLAT | Minimum Latitude |
MAXLAT | Maximum Latitude |
MINLON | Minimum Longitude |
MAXLON | Maximum Longitude |
Name | Description |
---|---|
MATCHBANDBIN | Enforce BandBin Group Match |
MATCHDEM | Enforce DEM Match |
HIGHSATURATION | Copy Input HS (Instrument and Representation) values |
LOWSATURATION | Copy Input LS (Instrument and Representation) values |
NULL | Copy Input NULL values |
This cube will be placed in the mosaic. It must have the same ProjectionName, PixelResolution, EquatorialRadius, PolarRadius, LatitudeType, and LongitudeDirection as the mosaic. The projection specific keywords, such as CenterLatitude and CenterLongitude, must match as well.
Type | cube |
---|---|
File Mode | input |
Filter | *.cub |
The ouput mosaic cube which will have the input cube placed in it. If the selected cube does not already exist as a mosaic, the CREATE option must be selected and it will be created. In this case the latitude and longitude range parameters must be entered.
Type | cube |
---|---|
File Mode | output |
Filter | *.cub |
This parameter determines how the pixels from the input cube will be placed in the mosaic.
Type | string | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Default | ONTOP | |||||||||||||||
Option List: |
|
This option allows you to select the method to specify the band to use for the pixel comparison.
Type | string | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Default | BANDNUMBER | |||||||||
Option List: |
|
This is the number of the band to use for the pixel comparison.
Type | integer |
---|---|
Default | 1 |
This is the keyword string. The entered keyword name must match the name in the BandBin group in the image labels.
Type | string |
---|---|
Default | OriginalBand |
This value must match the value associated with the KEYNAME parameter.
Type | string |
---|---|
Default | 1 |
Select which type of comparison to do on the pixels. You can choose whether the lesser or greater of the two pixels will be placed on top of the mosaic.
Type | string | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Default | LESSER | |||||||||
Option List: |
|
Select this parameter if the mosaic does not already exist.
Type | boolean |
---|---|
Default | NO |
Inclusions |
|
The Track feature creates a band in the output mosaic file containing the index values for every pixel in the output mosaic. The Track-band can only be used appropriately through the QVIEW-AdvancedTracking tool. As the user interactively pans across the displayed mosaic band (Band1), for every mosaic pixel location QVIEW-AdvancedTracking will report the source cube filename that was input to automos. The Track-band cannot be used outside the QVIEW-AdvancedTracking tool. TRACK must be set to TRUE at the time of mosaic creation only and cannot be turned on after the mosaic is created. When a mosaic is created with TRACK=TRUE, all subsequent runs will default to TRACK=TRUE. When a mosaic is created with TRACK=FALSE, an error will be encountered if subsequent runs have TRACK=TRUE. Hence the file (byte) size of the mosaic is increased due to the track-band.
A table, called InputImages, containing the names of the images used in the mosaic will be added to the cube when TRACK=TRUE.
WARNING: If Tracking is turned on in a mosaic, any subsequent applications that modify "dn" values will corrupt the track-band, for instance the application reduce.
Type | boolean |
---|---|
Default | FALSE |
This parameter specifies the minimum latitude of the mosaic.
Type | double |
---|---|
Internal Default | Use Map Value |
Minimum | -90.0 (inclusive) |
This parameter specifies the maximum latitude of the mosaic.
Type | double |
---|---|
Internal Default | Use Map Value |
Maximum | 90.0 (inclusive) |
Greater Than |
|
This parameter specifies the minimum longitude of the mosaic
Type | double |
---|---|
Internal Default | Use Map Value |
This parameter specifies the maximum longitude of the mosaic
Type | double |
---|---|
Internal Default | Use Map Value |
Greater Than |
|
This option causes the application to fail if the input BandBin Group keywords do not match the mosaic BandBin Group.
Type | boolean |
---|---|
Default | TRUE |
This option causes the application to fail if the input DEM shapemodel file does not match the filename value in the output mosaic ShapeModel.
Type | boolean |
---|---|
Default | FALSE |
This option causes an input High Saturation special pixel value (both Instrument and Representation) to replace the output mosaic pixel regardless of the priority set or the original value of the mosaic pixel.
Type | boolean |
---|---|
Default | FALSE |
This option causes input NULL pixel values to replace the output mosaic pixel regardless of the priority set or the original value of the mosaic pixel.
Type | boolean |
---|---|
Default | FALSE |
This option causes NULL values in the input image to be automatically copied to the mosaic regardless of the priority
Type | boolean |
---|---|
Default | FALSE |
Eric Eliason | 1986-01-02 | Original version |
Jeff Anderson | 2004-02-24 | Converted to Isis 3.0 |
Jeff Anderson | 2004-02-26 | Modified to not propagate input labels to the output mosaic |
Jeff Anderson | 2005-11-15 | Fixed bug with mapping groups not properly initialized or copied |
Jacob Danton | 2005-12-05 | Added appTest |
Elizabeth Miller | 2006-05-18 | Depricated CubeProjection and ProjectionManager to ProjectionFactory |
Elizabeth Miller | 2006-09-01 | Added the MATCHBANDBIN option that checks to make sure the input cube bandbin group matches the mosaic bandbin group. The default is true. |
Steven Lambright | 2008-05-13 | This program now utilizes ProcessMapMosaic |
Christopher Austin | 2008-09-19 | If the given cube falls outside the provided the mosaic, it will now be logged. (Removed some unused header files.) |
Christopher Austin | 2008-12-11 | Changed the parameters SLAT, ELAT, SLON, ELON to MINLAT, MAXLAT, MINLON, MAXLON in correlation with automos. |
Sharmila Prasad | 2009-10-15 | Added option "TRACK" to track pixel origin. Also added new priority called BAND where specified input and mosaic band is compared for moving input to mosaic and to track the pixel origin. Added parameter "TYPE" to choose Band "NUMBER" or PVL "KEYWORD" from the BandBin group. If "BANDNUMBER" is chosen, then "NUMBER" is activated to enter band number. If "KEYWORD" is chosen then parameter "KEYNAME" and "KEYVALUE" are activated to enter key name and value from the BandBin group for band comparison. Band comparison "CRITERIA" are "LESSER" or "GREATER" than. Also there are options "HIGHSATURATION", "LOWSATURATION" and "NULL", set to true will cause HS, LS and NULL input pixels to be copied to the mosaic regardless of the priorities and criteria. These options are not supported for "BENEATH" priority. |
Sharmila Prasad | 2010-10-27 | Process Input File Attributes |
Sharmila Prasad | 2011-01-19 | Added "AVERAGE" priority where the mosaic will be average of valid input and mosaic pixels. |
Sharmila Prasad | 2011-01-24 | Option to match DEM and also added new group "mosaic" to hold ShapeModel attributes for the mosaic. |
Sharmila Prasad | 2011-11-07 | Updated documentation for Average priority. Fixes #553. |
Kimberly Oyama | 2012-09-18 | When an image is placed twice (usually because the longitude range is greater than 360 and encompasses the image more than once) only the last occurance was written to the log file. This has been fixed so that there is an entry in the log file for every image placement. References #976. |
Kimberly Oyama | 2013-04-15 | Made the default for the TYPE parameter BANDNUMBER because, when running the GUI and PRIORITY=BAND, a blank "TYPE=" was added to the command line string. This no longer occurs, there is either no TYPE parameter or it is set to "TYPE=BANDNUMBER". Fixes #1549. |
Kimberly Oyama | 2014-02-14 | Removed the requirement that all four lat/lon extents be entered by the user. The user can now enter as little as none if the input cube Mapping group has the extents. However, if the input cube is missing any of the extents, the user must enter them. If any of the extents are missing, an error will be thrown. Fixes #1550. |
Kimberly Oyama and Tammy Becker | 2014-04-05 | Updated Documentation. Updated unit test for priority=band. Fixes #1620. References #1623. References #1550. |