Data compression
Students will learn how the information in a pixel can be manipulated to change the image, and apply a bitmask filter to an image to remove some information and reduce the memory size of the file. Finally, students will modify the filter to find a balance between quality and small file size. Based on the original lessons developed by the Exploring Computational Thinking team at Google.
Additional details
| Year band(s) | 7-8, 9-10 |
|---|---|
| Content type | Lesson ideas |
| Format | Web page |
| Core and overarching concepts | Data representation, Computational thinking, Abstraction, Specification (decomposing problems), Algorithms |
| Australian Curriculum Digital Technologies code(s) |
AC9TDI8K04
Explain how and why digital systems represent integers in binary
AC9TDI10K03
Investigate simple data compression techniques |
| Keywords | data representation, abstraction, pattern recognition, data analysis, algorithm design, data, data compression, pixels, pattern, patterns, Google, Google for Education, Education, computational thinking, GoogleCT |
| Organisation | ESA |
| Copyright | Creative Commons Attribution 4.0, unless otherwise indicated. |
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