noseam

This program, noseam, creates a mosaic using an algorithm that minimizes seams. The user will enter a text-based list of cubes that must be 1) in the same map projection and 2) contain equivalent projection parameters such as PixelResolution, CenterLongitude, and LatitudeSystem. More help is given in the Parameter Groups and with examples at the end of this document. To generate the mosaic, noseam uses the automos application. The FROMLIST and MATCHBANDBIN parameters are taken from noseam and forwarded to automos as well as the remainder of the parameters except with their default values. To learn more about automos parameters, see the automos application documentation.

Description

A list of map projected cubes to mosaic seamlessly. The Mapping groups must match in order to mosaic the cubes.

Type	filename
File Mode	input
Filter	*.txt *.lis *.lst

Description

The resulting mosaic, which will be created from the listed cubes.

Type	cube
File Mode	output
Filter	*.cub

Description

This is the total number of samples in the boxcar dimension applied using the highpass and lowpass filters. The number must be odd and cannot exceed twice the number of samples in the input cubes. The smaller the boxcar dimension, the more confined the filtered results are near the image seams, which will remain similar to the original mosaic. The larger the boxcar dimension, the greater the extent of the filter effects are beyond the seams.

Type	integer
Minimum	1 (inclusive)
Odd	This value must be an odd number

Description

This is the total number of lines in the boxcar dimension applied using the highpass and lowpass filters. The number must be odd and cannot exceed twice the number of lines in the input cubes. The smaller the boxcar dimension, the more confined the filtered results are near the image seams, which will remain similar to the original mosaic. The larger the boxcar dimension, the greater the extent of the filter effects are beyond the seams.

Type	integer
Minimum	1 (inclusive)
Odd	This value must be an odd number

Description

This option causes the application to fail if the input bandbin group does not match the mosaic bandbin group.

Type	boolean
Default	TRUE

Description

Multiple cube images as well as lists are created during the production of the final seamless mosaic. If this parameter is changed to false, those temporary cubes and lists will not be destroyed.

If REMOVETEMP=NO:

• OriginalMosaic.cub - This file is the mosaic result (automos) of the input cubes listed in FROMLIST.
• LowpassMosaic.cub - This file is the low pass filter (samples x lines) applied to the OriginalMosaic.cub.
• HighpassMosaic.cub - This file is the mosaic result (automos) of the high pass filtered input cubes listed in FROMLIST.
• HighPassList.lis - This single column list contains the individual highpass filter image results and filenames.
• _highpass.cub - Every image in the fromlist will have a high pass filter (samples x lines) output result. This is the suffix filename appended the original input filenames.
• LowpassMosaic.cub + HighpassMosaic.cub = TO (noseam output filename)

Type	boolean
Default	TRUE

This example shows how noseam works upon a small mosaic and compares that result to an automos output.

noseam FROMLIST=cubes.lis TO=final.cub SAMPLES=73 LINES=73

cube1.cub	First listed cube This is the first cube listed in cubes.lis.
cube2.cub	Second listed cube This is the second cube listed in cubes.lis.
cube3.cub	Third listed cube This is the third cube listed in cubes.lis.

cubes.lis	This is a text-based file that lists all of the cubes to mosaic. This list as well as the cubes to be mosaicked must be within the current directory when noseam is executed.

final.cub	The resulting mosaic Parameter Name: TO This is the resulting mosaic final.cub.
automos.cub	Automos result (NOT AN OUTPUT OF NOSEAM) This is the same mosaic created using automos. Notice the difference between automos.cub and final.cub. The seams that existed between the original images in automos are nearly invisible in final.cub.