Getting Started with ENVI, Książki - eBooki, ENVI Tutorials, s
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Getting Started
with ENVI
ENVI Version 4.5
April, 2008 Edition
Copyright © ITT Visual Information Solutions
All Rights Reserved
20GST45DOC
Restricted Rights Notice
The IDL®, ION Script™, ION Java™, IDL Analyst™, ENVI
®
, and ENVI Zoomâ„¢ software programs and the accompanying
procedures, functions, and documentation described herein are sold under license agreement. Their use, duplication, and disclosure
are subject to the restrictions stated in the license agreement. ITT Visual Information Solutions reserves the right to make changes to
this document at any time and without notice.
Limitation of Warranty
ITT Visual Information Solutions makes no warranties, either express or implied, as to any matter not expressly set forth in the
license agreement, including without limitation the condition of the software, merchantability, or fitness for any particular purpose.
ITT Visual Information Solutions shall not be liable for any direct, consequential, or other damages suffered by the Licensee or any
others resulting from use of the software packages or their documentation.
Permission to Reproduce this Manual
If you are a licensed user of these products, ITT Visual Information Solutions grants you a limited, nontransferable license to
reproduce this particular document provided such copies are for your use only and are not sold or distributed to third parties. All such
copies must contain the title page and this notice page in their entirety.
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This software and its associated documentation are subject to the controls of the Export Administration Regulations (EAR). It has
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Acknowledgments
ENVI
®
and IDL
®
are registered trademarks of ITT Corporation, registered in the United States Patent and Trademark Office. ION
â„¢
, ION
Script
â„¢
,
ION Java
â„¢
, and ENVI Zoom
â„¢
are trademarks of ITT Visual Information Solutions.
ESRI
®
, ArcGIS
®
, ArcView
®
, and ArcInfo
®
are registered trademarks of ESRI.
Numerical Recipesâ„¢ is a trademark of Numerical Recipes Software. Numerical Recipes routines are used by permission.
GRG2â„¢ is a trademark of Windward Technologies, Inc. The GRG2 software for nonlinear optimization is used by permission.
NCSA Hierarchical Data Format (HDF) Software Library and Utilities. Copyright © 1988-2001, The Board of Trustees of the University of Illinois. All
rights reserved.
NCSA HDF5 (Hierarchical Data Format 5) Software Library and Utilities. Copyright © 1998-2002, by the Board of Trustees of the University of
Illinois. All rights reserved.
CDF Library. Copyright © 2002, National Space Science Data Center, NASA/Goddard Space Flight Center.
NetCDF Library. Copyright © 1993-1999, University Corporation for Atmospheric Research/Unidata.
HDF EOS Library. Copyright © 1996, Hughes and Applied Research Corporation.
SMACC. Copyright © 2000-2004, Spectral Sciences, Inc. and ITT Visual Information Solutions. All rights reserved.
This software is based in part on the work of the Independent JPEG Group.
Portions of this software are copyrighted by DataDirect Technologies, © 1991-2003.
BandMax
®
. Copyright © 2003, The Galileo Group Inc.
Portions of this computer program are copyright © 1995-1999, LizardTech, Inc. All rights reserved. MrSID is protected by U.S. Patent No. 5,710,835.
Foreign Patents Pending.
Portions of this software were developed using Unisearch’s Kakadu software, for which ITT has a commercial license. Kakadu Software. Copyright ©
2001. The University of New South Wales, UNSW, Sydney NSW 2052, Australia, and Unisearch Ltd, Australia.
This product includes software developed by the Apache Software Foundation (
.
MODTRAN is licensed from the United States of America under U.S. Patent No. 5,315,513 and U.S. Patent No. 5,884,226.
FLAASH is licensed from Spectral Sciences, Inc. under a U.S. Patent Pending.
Portions of this software are copyrighted by Merge Technologies Incorporated.
Support Vector Machine (SVM) is based on the LIBSVM library written by Chih-Chung Chang and Chih-Jen Lin (
,
adapted by ITT Visual Information Solutions for remote sensing image supervised classification purposes.
IDL Wavelet Toolkit Copyright © 2002, Christopher Torrence.
IMSL is a trademark of Visual Numerics, Inc. Copyright © 1970-2006 by Visual Numerics, Inc. All Rights Reserved.
Other trademarks and registered trademarks are the property of the respective trademark holders.
Contents
Chapter 1
Introduction to ENVI
............................................................................... 9
What is ENVI?
................................................................................................................ 10
ENVI + IDL, ENVI, and IDL
................................................................................... 11
About ENVI Functionality
.............................................................................................. 12
End-to-End Processing
............................................................................................. 12
Hyperspectral Data Analysis
.................................................................................... 13
About ENVI Zoom
.......................................................................................................... 14
ENVI Add-On Modules
.................................................................................................. 15
DEM Extraction
........................................................................................................ 15
ENVI Feature Extraction
.......................................................................................... 15
FLAASH
................................................................................................................... 15
NITF/NSIF
................................................................................................................ 16
Using This Guide
............................................................................................................. 17
Additional ENVI Documentation
.................................................................................... 18
Getting Started with ENVI
3
4
ENVI Support
.................................................................................................................. 20
Contacting Technical Support
................................................................................... 20
Contacting Sales
........................................................................................................ 20
Training and Custom Development Services
.................................................................. 21
ENVI Training
........................................................................................................... 21
Additional Resources
....................................................................................................... 22
ITT Visual Information Solutions Website
............................................................... 22
IDL Newsgroup
......................................................................................................... 22
Chapter 2
Before You Begin
.................................................................................. 23
Starting and Exiting ENVI
............................................................................................... 24
Using Startup Scripts
................................................................................................. 24
Exiting ENVI
............................................................................................................. 26
ENVI Image Files
............................................................................................................ 27
ENVI Header Files
........................................................................................................... 28
ENVI File Naming Conventions
...................................................................................... 29
ENVI Supported Input File Formats
................................................................................ 31
ENVI Supported Output File Formats
............................................................................. 33
Chapter 3
The ENVI Interface
................................................................................ 35
The ENVI Main Menu Bar
.............................................................................................. 36
The Available Bands List
................................................................................................. 37
Folding and Unfolding Data Sets
.............................................................................. 38
Opening Files from the Available Bands List
........................................................... 39
Opening Files in ArcMap
.......................................................................................... 39
Opening Files in ENVI Zoom
................................................................................... 40
Closing Files from the Available Bands List
............................................................ 40
Hiding and Showing the Available Bands List
......................................................... 41
Available Bands List Right-Click Menus
................................................................. 42
Locating Bands by Wavelength
................................................................................ 43
Showing Displayed Band Information
...................................................................... 43
Display Groups
................................................................................................................ 44
Opening New Display Groups
.................................................................................. 46
Resizing Display Group Windows
............................................................................ 46
Maximizing Open Displays
....................................................................................... 46
Contents
Getting Started with ENVI
5
Positioning the Zoom and Scroll Windows
.............................................................. 47
Displaying Scroll Bars
.............................................................................................. 47
Hiding and Unhiding Display Group Windows
....................................................... 48
Display Group Right-Click Menus
........................................................................... 48
Controlling the Zoom Window
................................................................................. 49
Controlling the Scroll Window
................................................................................. 52
Using the Window Finder
......................................................................................... 53
Saving Display Groups
............................................................................................. 54
Restoring Saved Display Groups
.............................................................................. 54
Setting Preferences for an Individual Display Group
............................................... 55
Closing Display Groups
............................................................................................ 57
The Available Vectors List
.............................................................................................. 58
Opening Files from the Available Vectors List
........................................................ 59
Opening Vector Layers in ENVI Zoom
.................................................................... 59
Opening Vector Layers in ArcMap
.......................................................................... 59
Saving Vector Layers
................................................................................................ 60
Opening New Vector Windows
................................................................................ 62
Editing Layer Names
................................................................................................ 62
Creating New Layers
................................................................................................ 63
The Remote Connection Manager
................................................................................... 64
Vector Displays
............................................................................................................... 65
Starting New Vector Windows
................................................................................. 68
Zooming In and Out of Vector Windows
................................................................. 68
Panning in Vector Windows
..................................................................................... 68
Using Cursor Tracking in Vector Windows
............................................................. 68
Vector Options
.......................................................................................................... 69
Vector Attributes
....................................................................................................... 69
Plot Windows
.................................................................................................................. 70
Opening New Plot Windows
.................................................................................... 71
Closing All Plot Windows
........................................................................................ 71
ENVI Mouse Buttons
...................................................................................................... 72
Image Window Mouse Button Functions
................................................................. 73
Zoom Window Mouse Button Functions
.................................................................. 73
Scroll Window Mouse Button Functions
.................................................................. 74
Vector Window Mouse Button Functions
................................................................ 75
Plot Window Mouse Button Functions
..................................................................... 76
Getting Started with ENVI
Contents
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