The maths behind RGB images
In this lesson students explore the colour model RGB (Red, Green, Blue) commonly used in digital imaging and display systems and why there are 256 colours using mathematical understanding of powers. Students convert decimal numbers (numbers that use the digits 0 to 9) to binary.
Additional details
| Year band(s) | 7-8 |
|---|---|
| Content type | Lesson ideas |
| Format | Web page |
| Core and overarching concepts | Digital systems, Data representation |
| Australian Curriculum Digital Technologies code(s) |
AC9TDI8K03
Investigate how digital systems represent text, image and audio data using integers
AC9TDI8K04
Explain how and why digital systems represent integers in binary |
| Keywords | pixel, images, colour model, bytes |
| Organisation | ESA |
| Copyright | Creative Commons Attribution 4.0, unless otherwise indicated. |
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