https://github.com/jnylen/shrine-color

Finding the primary color in an image for Shrine.
https://github.com/jnylen/shrine-color

activerecord color mongoid rails ruby ruby-on-rails shrine

Last synced: 4 months ago
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Finding the primary color in an image for Shrine.

• Host: GitHub
• URL: https://github.com/jnylen/shrine-color
• Owner: jnylen
• License: mit
• Archived: true
• Created: 2016-08-07T02:25:50.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2022-10-27T04:01:08.000Z (about 2 years ago)
• Last Synced: 2024-09-18T01:46:40.618Z (4 months ago)
• Topics: activerecord, color, mongoid, rails, ruby, ruby-on-rails, shrine
• Language: Ruby
• Size: 81.1 KB
• Stars: 8
• Watchers: 2
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Shrine Color

Get the dominant color of an image using colorscore (updated version by me). This can be used as a background color while an image is loading or search by color.

This is based on carrierwave-color by Sunny Ripert (sunny).

**NOTE: The palettes/dominiant_color grabbed from images may differ between imagemagick versions.**

**Current version of imagemagick the test runs towards: 7.0.8-68**

## Requirements

This gem requires imagemagick (convert) and grabs colors via a command line.

So mini_magick, etc. isn't required.

## Installation

Add this line to your application's Gemfile:

```ruby

gem "shrine-color"

```

And then call:

```sh

$ bundle

```

## Add the plugin to your uploader

In your uploader, include the module and call the processor:

```ruby

class ImageUploader < Shrine

  # plugin add_metadata should be loaded automagically.

  # otherwise add it here

  plugin :color

  # dominant color

  add_metadata :dominant_color do |io, context|

    dominant_color(io.path)

  end

  # palette color with version, color count and own array of colors.

  add_metadata :palette_color do |io, context|

    if context[:version] == :small

      palette_color(io.path, 3, ['ff0000', '00ff00', '0000ff'])

    end

  end

end

```

You can now use the code below to get a color:

```ruby

## Dominant color

photo.image[:small].metadata["dominant_color"]

# or

photo.image[:small].dominant_color

```