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This chapter’s lab will introduce you to some of the basics of working with
multispectral remotely sensed imagery through the use of the MultiSpec software program.
Objectives
The goals for you to take away from this exercise are:
a Familiarizing yourself with the basics of the MultiSpec software program.
a Loading various bands into the color guns and examining the results.
a Creating and examining different color composites.
a Comparing the brightness values of distinct water and environmental
features in a remotely sensed satellite image to create basic spectral
profiles.
Obtaining Software
The current version of MultiSpec is available for free download at http://
cobweb.ecn.purdue.edu/~biehl/MultiSpec.
Important note: Software and online resources sometimes change fast.
This lab was designed with the most recently available version of the software at the time of writing. However, if the software or Websites have significantly changed between then and now, an updated version of this lab (using
the newest versions) is available online at http://www.whfreeman.com/
shellito1e.
Lab Data
Copy the folder ‘Chapter10’—it contains a Landsat 5 TM satellite image file
called ‘cle.img’ (which is a subset of a Landsat 5 TM scene from 9/11/2005 of
northeast Ohio). We will discuss more about Landsat imagery in Chapter 11,
but the TM imagery bands refer to the following portions of the electromagnetic (EM) spectrum in micrometers (m):
a Band 1: Blue (0.45 to 0.52 m)
a Band 2: Green (0.52 to 0.60 m)
a Band 3: Red (0.63 to 0.69 m)
10.1 Geospatial Lab Application
Remotely Sensed Imagery and
Color Composites
This chapter’s lab will introduce you to some of the basics of working with
multispectral remotely sensed imagery through the use of the MultiSpec software program.
Objectives
The goals for you to take away from this exercise are:
a Familiarizing yourself with the basics of the MultiSpec software program.
a Loading various bands into the color guns and examining the results.
a Creating and examining different color composites.
a Comparing the brightness values of distinct water and environmental
features in a remotely sensed satellite image to create basic spectral
profiles.
Obtaining Software
The current version of MultiSpec is available for free download at http://
cobweb.ecn.purdue.edu/~biehl/MultiSpec.
Important note: Software and online resources sometimes change fast.
This lab was designed with the most recently available version of the software at the time of writing. However, if the software or Websites have significantly changed between then and now, an updated version of this lab (using
the newest versions) is available online at http://www.whfreeman.com/
shellito1e.
Lab Data
Copy the folder ‘Chapter10’—it contains a Landsat 5 TM satellite image file
called ‘cle.img’ (which is a subset of a Landsat 5 TM scene from 9/11/2005 of
northeast Ohio). We will discuss more about Landsat imagery in Chapter 11,
but the TM imagery bands refer to the following portions of the electromagnetic (EM) spectrum in micrometers (m):
a Band 1: Blue (0.45 to 0.52 m)
a Band 2: Green (0.52 to 0.60 m)
a Band 3: Red (0.63 to 0.69 m)
10.1 Geospatial Lab Application
Remotely Sensed Imagery and
Color Composites