Kirby panel hook plugin to extract the dominant color out of an image
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README.md

Extract an Image's dominant color - Kirby CMS Panel

Screenshot

Simple kirby panel hook that will extract the most dominant color for a given image and store it in the file's metadata on the color field as an hex value eg: #fefefe.

This is useful for example when lazyloading images, Google uses the same technique in Google Images.

The hook will fire for any image you upload or replace in the panel.

Installation

git submodule add git@github.com:iandoe/kirby-dominant-color.git site/plugins/dominantcolor

then run composer in the resulting directory

cd site/plugins/dominantcolor/
composer install

Diplaying the value in the panel field

Combined with https://github.com/ian-cox/Kirby-Color-Picker You can have the extracted color displayed in the panel when looking at the image your blueprint's file fields :

files:
  fields:
    color:
      label: Dominant Color
      type: color

Using the value

The value will be available on the image object like such :

<?php $page->image('myimage.jpg')->color() ?>

License

MIT

Credits

All credits goes to @thephpleague for the actual color extracting process in PHP https://github.com/thephpleague/color-extractor