Global Flags. A colorful World by Alexander Varlamov

The work is part (Part 2) of a triptych of visualizations studying the colors of national flags. Each color has a specific meaning, so the aim was to understand which colors appear on the flags of countries and why they are used.

The project "Global Flags. A colorful World" displays the percentage of flag colors in the form of donut charts. This is an unconventional interpretation, but it's interesting to see the flag itself in the center of the chart and how the colors are distributed on the chart. Additionally, you can switch to Stacked Bar Charts. The visualization is interactive: users can filter the diagrams by the main flag colors, number of flag colors, regions, and countries. Diagrams can be sorted by various parameters, and countries can be selected based on population and area.

On original national flags, it is difficult to calculate the percentage of each color due to complex patterns or coats of arms. To accurately collect the colors of each flag, a Python algorithm was developed that analyzes every pixel of the PNG images of all national flags and creates a dataset with the percentage of each color and its hex code. Color shades are mapped to basic categories (e.g., green, blue, etc.) using AI.

On one hand, it is an interactive visualization where one can discover various interesting insights. On the other hand, it is a data art piece, particularly intriguing when printed, where you can see the colors of all national flags on one page.

Part 1 of tryptich:
Spectrum of Nations
https://public.tableau.com/views/SpectrumofNations/TreemapsofFlags?:origin=viz_share_link&:showVizHome=no

Part 3 of tryptich:
Global Flag Colors
https://public.tableau.com/views/GlobalFlagColors/TreemapsGlobalFlags?:origin=viz_share_link&:showVizHome=no