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ITRES Research Limited
#110, 3553 - 31st Street N.W.
Calgary, Alberta, Canada T2L 2K7
Tel: +1 (403) 250-9944
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 Hyperspectral Image Analysis Software

ENVI and IDL by ITT VIS

ENVI and IDL Software

Once the hyperspectral image data from an ITRES imaging sensor has undergone standard processing (radiometric/geometric correction, orthocorrection) using ITRES proprietary software, further image analysis may be performed using software from a variety of commercial vendors. For over 12 years we've recommended the use of ENVI and IDL, manufactured by ITT Visual Information Solutions.

ITRES is a value-added reseller of ITT VIS products, including ENVI and IDL.

Information on these third-party products are provided as a courtesy to ITRES sensor clients. The reader is encouraged to visit the ITT VIS website to learn more about their products and capabilities (www.ittvis.com).

   

ENVI Sensor Support and Pre-Processing

ENVI supports the .pix (Band Interleaved by Pixel) format of the data from all ITRES imaging sensors (CASI, SASI, MASI, TABI, and TASI). ENVI's automated pre-processing tools allow you to quickly and easily prepare your imagery for viewing or additional analysis.

Among other tasks that can be performed on image data from an ITRES sensor, ENVI allows you to:

  • Register two or more images
  • Create vector overlays
  • Identify regions of interest
  • Resize, rotate, or convert the data type
  • Perform quick and easy image enhancements

 ENVI Spectral Analysis Tools

Getting the most from the wealth of accurate spectral information inherent in ITRES hyperspectral imager data sometimes requires more intensive image spectral analysis.

 

Spectral analysis allows you to use pixel responses measured at different wavelengths to obtain information about the materials within each pixel of a hyperspectral ITRES dataset. ENVI has very advanced yet easy-to-use spectral analysis tools that give you access to established, scientific mapping methods for hyperspectral image analysis. ENVI's spectral analysis tools allow you to:

 

  • Perform spectral discrimination between cover types based on the detailed spectral profiles generated from ITRES hyperspectral imagery
  • Classify imagery using supervised and unsupervised methods
  • Identify spectral signatures using robust libraries
  • Detect and identify targets
  • Identify features of interest
  • Analyze and map materials of interest
  • Perform whole-pixel and sub-pixel analyses
  • Use a suite of post-classification tools to refine your results
  • Calculate forest health with vegetation analysis tools

 ENVI Data Analysis Tools

  •  Perform custom band and spectral math functions
  • Create geospatial statistics such as autocorrelation and semi-variance
  • Calculate image statistics such as mean, min/max, standard deviation
  • Extract linear features
  • Calculate principal components
  • Detect change
  • Measure features
  • Model topographic characteristics
  • Apply common and user-defined filters

 Cross-Platform Support

ENVI is built upon an extensible platform that allows for the easy expansion and customization of ENVI applications. It features cross-platform support between Windows, Linux, UNIX, or Macintosh operating systems.

 

 What is IDL?

Featuring a built-in library of math, statistics, image processing, and signal processing routines, IDL can be used to develop stand-alone image analysis and data manipulation algorithms, routines, or interfaces. IDL can also be used to customize and add user-defined functionality to the ENVI image analysis software. 

 

IDL (Interactive Data Language) is a flexible, high-level structured programming language that contains an extensive library of image processing and analysis routines. With IDL, you can quickly access image data and begin investigating the best way to extract useful information.
About ITT Visual Information Solutions
 
As a leader in image processing and analysis software, ITT Visual Information Solutions provides robust desktop and enterprise solutions to get the answers you need quickly from complex data and geospatial imagery.  Their solutions provide help to scientists, engineers, researchers, and medical professionals to turn complex data into useful information. The company’s 150,000+ customers use IDL and ENVI to analyze data and imagery and deploy imaging applications. Products are used in a variety of industries, including remote sensing, engineering, earth sciences, aerospace, defense and intelligence, medical imaging, oil and gas exploration and biotechnology.

ENVI is the premier software solution for quickly, easily, and accurately extracting information from geospatial imagery. ENVI provides the tools and modules imagery analysts and scientists need for every step of the image processing workflow – from reading, preparing, and exploring to analyzing and sharing – all in a familiar, easy-to-use interface. Imagery analysts and scientists choose ENVI’s suite of advanced spectral analysis capabilities, including anomaly detection, feature extraction, and image classification. Other key features include automatic registration, orthorectification, terrain analysis, radar analysis and map composition. ENVI can be customized and extended using IDL, and functionality and code is easily integrated with other popular programming languages.

Combined with a host of support services, including training, consulting, and a web-based resource for the IDL and ENVI user communities, ITT Visual Information Solutions offers the most complete data visualization, image analysis and image delivery solutions available. Visit: www.ittvis.com for additional product features and functionality.

 ENVI/IDL are trademarks of ITT VIS.