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Your search returned 4 results

Listed under:  Technologies  >  Information and communication technologies  >  Data storage  >  Computer files  >  Image files
Assessment

Pixels and binary digits

  • TLF-IDA003446

Students are given a bitmap image made up of coloured pixels. They explain how the image is made up of binary digits that represent each pixel. Students represent 8 colours using binary digits. Teachers assess the student’s demonstrated knowledge/skills using the checklist provided.

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The maths behind RGB images

  • TLF-IDA004599

In this lesson, students explore the RGB (Red, Green, Blue) colour model commonly used in digital imaging and display systems. They learn how each colour in the RGB model is represented by 8 bits and understand why there are 256 color intensities for each channel. Students will represent the 8 bits using their mathematical ...

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Representing images using binary: totems

  • TLF-IDA004607

In this lesson, students will interpret a First Nations Australian artwork by representing an image they create as a binary image with accompanying code.

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Online

Data compression

  • TLF-IDA003336

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 ...

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