Défi
Decoding a picture - level 2
lundi 18 octobre 2021, par
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Support pédagogique
Papier et crayons
Cycles
Cycle 2
Cycle 3
Cycle 4
Compétences travaillées
C4. Notion d’algorithme et de programme
C3. Initiation à la programmation
Projets / Challenges
CodeWeek
In the previous assignment, we saw that an image was encoded pixel by pixel in binary language (O and 1). You have managed to decode a black and white image.
How does it work for a colour image ?
Objective
Decode the following image
Principle
Each colour corresponds to a number.
There are different techniques to decode the image :
- colour in box after box by matching the colours
- Look at the first colour code and colour in all the corresponding boxes before moving on to the next colour.
- Look at the first box and colour in all the matching boxes that touch it.

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