Extract donimant colors using dominant_colors in Elixir Livebook

livemd

# Extract dominant colors from image

```elixir
Mix.install([
  {:kino, "~> 0.11.3"},
  {:dominant_colors, "~> 0.1.4"}
])
```

## Extract colors

```elixir
image_path = "/Users/mikeli/Downloads/111ebfdc244345c3.png"
content = File.read!(image_path)
Kino.Image.new(content, :png)
```

```elixir
{:ok, colors} = DominantColors.dominant_colors(image_path)

styles = fn color ->
  [
    {"justify-content", "center"},
    {"align-items", "center"},
    {"color", "white"},
    {"display", "inline-flex"},
    {"width", "100px"},
    {"height", "30px"},
    {"background-color", color},
    {"margin", "1px"}
  ]
  |> Enum.map(fn {k, v} -> k <> ": " <> v <> ";" end)
  |> Enum.join(" ")
end

html =
  Enum.map(colors, fn color ->
    "<div style=\"#{styles.(color)}\">#{color}</div>"
  end)
  |> Enum.join()

Kino.HTML.new(html)