Image processing - using satellite images

This is a free resource courtesy of Earth Science Australia

Getting started

Satellite images can be very useful in providing valuable information but the human eye is not sensitive enough to interpret the subtle changes in brightness and colour.
To help we can use image processing to overcome this difficulty and to expose the hidden treasures of information found in satellite images. Image processing works because, unlike photographs, numbers represents the colours in satellite and digital images.

If you do not already have one installed on your computer consider installing this freeware image-processing program to complete the following activities:

Irfan view

http://www.irfanview.com/
IrfanView is a very fast, small, compact and innovative freeware (for non-commercial use) graphic viewer for Windows 9x/ME/NT/2000/XP/2003.

"It tries to be simple for beginners and powerful for professionals."

• 1. Getting Started
  • Example 1: Studying the rocks on Venus
  • Example 2: Hawaii – exploring its waters
• 2. Try some more images
  • Finding zones of maximum turbulence in a cyclone
  • The Pyramids
  • Predicting floods on the Zambeze River in Africa
• 3. Additional images