Help Articles are product support tips and information straight from the Harris Geospatial Technical Support team developed to help you use our products to their fullest potential.

ENVI Services Engine (ESE) 5.3 Release Notes


Known Issues  ESE-68590 The ESE system will experience severe slowness when the cleaning service deletes job sandboxes of still queued jobs. This can happen when ESE takes longer to process other jobs in the queue than the cleaning service time. To avoid this problem, update ESE's configuration... more »

IDL 8.5 Release Notes


Supported Platforms Platform Hardware Operating System Supported Versions Windows Windows Intel/AMD 64-bit 7, 8, 10 Macintosh Intel 64-bit OS X... more »

Finding multiple local max/min values for 2D plots with IDL


As is, IDL does not have a built in function to find multiple local maximums or minimums for 2D plots. Luckily, there is a simple algorithm that can be applied to a data set to determine if a point is a maximum or minimum. The algorithm works by checking the point to the left and to the right for the i-th point and seeing if the i-th point... more »

An example of performing band math with the new ENVI API


  Performing band math with the new ENVI API can be a little daunting compared to the simplistic approach of the ENVI Classic routines such as MATH_DOIT. While there is some overhead associated with how to use IDL with the new ENVI API, this example makes use of the tile iterator which can be used to greatly speed up processing time and... more »

How to programmatically access the transformation matricies of the ICA .trans file


The Independent Components (IC) analysis is used to transform a set of mixed, random signals into components that are mutually independent for multispectral or hyperspectral datasets.  The ICA transform produces a transformation matrix of the forward and backward transformation coefficients that are stored in a '.trans'... more »



ENVI 5.4 / IDL 8.6 Quick Start Install and Licensing Guide


Below is a quick start guide to follow to download and activate your ENVI 5.4 and/or IDL 8.6 software once... more »

ENVI Pocket Guide Vol. 1 | Basics

An ENVI quick reference booklet that provides users succinct steps on how to accomplish common tasks in ENVI.


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