msi2isis

This program will import raw images, acquired from the Near Earth Asteroid Rendezvous - Shoemaker (NEAR Shoemaker) mission's Multispectral Imager (MSI) instrument, to ISIS data file format. The raw image must be in FITS (Flexible Image Transport) format and have a PDS label file that points to the location of the FITS image. You must input either the label file or the FITS file for the "TO" input parameter. Projected images are not supported. Please note if the FITS file is given, the label file must exist in the same directory or the program will throw an error. This program will verify that the input files are valid by checking the following label keyword values. An error will be thrown if any of these criteria are not met.

• INSTRUMENT_ID = MSI
• LINE_SAMPLES = 537
• LINES = 244
• SAMPLE_DISPLAY_DIRECTION = RIGHT
• LINE_DISPLAY_DIRECTION = UP

The output cube- successfully imported into ISIS goes through the following processes:

• Convert the raw FITS image data to an ISIS cube.
• Save the labels from the input PDS label file to the output ISIS cube. Note that FITS labels are not transferred.
• Enlarge the image from 537 samples x 244 lines to 537 x 412 using the user-specified interpolation algorithm. Defaults to cubic convolution.
• Flip the image vertically, i.e. across the horizontal axis.
• Trim 33 pixels from the top, bottom, left and right sides. These pixels along the borders will be set to nulls.

Description

Name of the input NEAR MSI image file to be imported into ISIS format. You may enter the label or the image file. If the image file is given, the program will search in the same directory for a label file with the same base name as the image file base name.

Type	filename
File Mode	input
Filter	*.lbl *.fit *.fits

Description

Name of the ISIS output cube file that has been imported, enlarged, flipped, and trimmed.

Type	cube
File Mode	output
Filter	*.cub

Description

This is the type of interpolation to be performed on the input when the image is enlarged from 537 samples x 244 lines to 537 samples x 412 lines.

Type	string
Default	CUBICCONVOLUTION
Option List:	Option Brief Description CUBICCONVOLUTION Cubic Convolution interpolation Each output pixel is set to the value calculated by a cubic convolution interpolation of the calculated input pixel. NEARESTNEIGHBOR Nearest Neighbor Each output pixel is set to the pixel nearest the calculated input pixel. BILINEAR Bi-Linear interpolation Each output pixel is set to the value calculated by a bi-linear interpolation of the calculated input pixel.

This example shows how to import an MSI fits file to the ISIS cube format using the label file.

msi2isis from=msi_raw_file.lbl to=imported.cub

GUI Example

The application's GUI Example with parameters set to import MSI raw image to a cube.

Raw image

Original image Parameter Name: FROM Example of raw NEAR MSI image without the enlarge, flip, and trim processes performed by msi2isis.

Imported cube

Imported NEAR MSI cube Parameter Name: TO Example of imported NEAR MSI image with the enlarge, flip, and trim processes applied.