Pixel Calculator Activities - Table of Contents

Table of contents

• Introduction
  • What you need
  • What is a digital image?
  • The Pixel Calculator
  • How to load an image
  • Getting a picture YOU like
• Zooming
  • Zooming in...
  • Grey Values
  • Factoid
  • Zooming out...
• Image locations
  • Location, location, location...
  • Zooming into a picture position
• Modifying a picture
  • Contrast
  • Changing a pixel in the image
  • Adding to an image
  • The # key
• Contrast enhancement
  • Max and Min
  • Contrast enhancement
  • Using contrast enhancement
  • Factoid
• Finding secret messages
  • Looking for a message
  • Secret messages
  • Let's try it by hand
  • Let's try it again
  • Factoid
  • Secret messages on the mountain
  • Secret messages on the map
  • Factoid
• More on secret messages
  • Just Checking
  • Playing the computer
  • Using the computer
  • A hidden message
• Create your own secret messages
  • Creating your own mystery image
  • Writing with the calculator
  • A trick: getting rid of odd gray values
  • Hiding your message
  • Finding your own mystery message
  • Making your own activity sheet
• More fun with secret messages
  • Factoid
  • Just a refresher
  • A scavenger hunt (with three clues)
  • The final message