Lesson Plan

Colour by Numbers–Image Representation

Curated and Reviewed by Lesson Planet

How do computers store and send images? Here's an activity that explains one way a computer can compress image information. Pupils decode run-length coding to produce a black and white image. Pairs then work together to code and decode their own images.

21 Views 19 Downloads
Instructional Ideas
  • Discuss with the class what people create with pixels
  • Start the activity by either having the class read "What's it all about?" or a presentation about compression
Classroom Considerations
  • Some pupils may not know about faxes
Pros
  • An extension activity provides a suggestion on how to make color images
  • The videos provide examples of how to use the data compression method
Cons
  • None