Representing images

EasyMedium
1234567891011121314151617181920212223242526272829
Question 27
Easy

A designer creates three simple pixel-art graphics using different color palettes as shown below:

Three pixel-art grids representing image files. Grid Alpha: A 4x4 pixel grid using exactly 8 unique colors (red, green, blue, yellow, magenta, cyan, black, and white). Grid Beta: A 4x4 pixel grid using exactly 3 unique colors (gold, indigo, and white). Grid Gamma: A 4x4 pixel grid using exactly 12 unique shades of grey.

State the minimum colour depth, in bits, required to represent Grid Beta.

[1]

Representing images Questions

  1. GCSE
  2. /Computer Science
  3. /Representing images