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General usage: > readmoc xx0202.imq xx0202.img

readmoc will decompress a MOC SDP image and format it into adecompressed PDS image file with PDS labels and an image object.

The readmoc executable was generated for a Windows 95 system usingMicrosoft Visual C++ 4.0. It was also tested under Windows 98.

To extract the source and compile it, use the following commands:

1. unzip readmoc.zip

2. run Visual C++, define a new console application, load all of the.c and .h files into the project, add the Binmode.obj file frommsdev\lib to force binary file I/O, and do a build.

Then open a MS/DOS window and run readmoc on the command line.The program takes two command-line arguments:

readmoc input-file output-file

There are no other options.

For images that were predictively compressed and then suffereduncorrectable memory loss buffer errors and/or downlink data loss,the error messages

"lost sync, line -- restart at "

or

"lost sync, line -- aborting"

may be encountered. This message indicates that the program is tryingto resynchronize to the compressed bit stream, and that the loss ofsync was first noticed at the given line number. Depending on thesuccess of the resynchronization algorithm, there may or may not bevalid image data after that line.

In the case of uncorrectable buffer errors causing this error message,the DATA_QUALITY_DESC field in the imgindex.tab file may still have avalue of OK, as these errors cannot be easily detected withoutdecompressing the data. Conversely, errors other than the onedescribed above may have been detected during the processing of animage leading to a DATA_QUALITY_DESC value of ERRORS.

Updates and fixes to the code may be found at the MSSS Web site at"www.msss.com/mocsoft/".

NOTICE

The software accompanying this notice (the "Software") is provided to youfree of charge to facilitate your use of the data collected by the MarsOrbiter Camera (the "MOC Data"). Malin Space Science Systems ("MSSS")grants to you (either as an individual or entity) a personal,non-transferable, and non-exclusive right (i) to use and reproduce theSoftware solely for the purpose of accessing the MOC Data; (ii) to modifythe source code of the Software as necessary to maintain or adapt theSoftware to run on alternate computer platforms; and (iii) to compile, useand reproduce the modified versions of the Software solely for the purposeof accessing the MOC Data. In addition, you may distribute the Software,including any modifications thereof, solely for use with the MOC Data,provided that (i) you must include this notice with all copies of theSoftware to be distributed; (ii) you may not remove or alter anyproprietary notices contained in the Software; (iii) you may not charge anythird party for the Software; and (iv) you will not export the Softwarewithout the appropriate United States and foreign government licenses.

You acknowledge that no title to the intellectual property in the Softwareis transferred to you. You further acknowledge that title and fullownership rights to the Software will remain the exclusive property of MSSSor its suppliers, and you will not acquire any rights to the Softwareexcept as expressly set forth above. The Software is provided to you ASIS. MSSS MAKES NO WARRANTY, EXPRESS OR IMPLIED, WITH RESPECT TO THESOFTWARE, AND SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OFNON-INFRINGEMENT OF THIRD PARTY RIGHTS, MERCHANTABILITY AND FITNESS FOR APARTICULAR PURPOSE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION ORLIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO SUCH LIMITATIONS OREXCLUSIONS MAY NOT APPLY TO YOU.

Your use or reproduction of the Software constitutes your agreement to theterms of this Notice. If you do not agree with the terms of this notice,promptly return or destroy all copies of the Software in your possession.

Copyright (C) 1999 Malin Space Science Systems. All Rights Reserved.