joshsmith

- @artworks.each do |artwork|
  %li.to-masonify
    .burst
      = link_to artwork do
        .image
          = image_tag(artwork.image.url(:medium), :size => artwork.image.image_size(:medium))
          .burst-actions
            .burst-like
              %a.btn.btn-small(href="#")
                %i.icon-heart

joshsmith

image = Magick::Image.read("https://s3.amazonaws.com/artburst-dev/artworks/medium/1/bubblegun.jpg").first

hist = image.quantize(8).color_histogram

pixels_array = []

pixels = hist.keys.sort_by {|pixel| hist[pixel]}
pixels.each { |pixel| pixels_array << [ pixel.to_color(Magick::AllCompliance,false,8), hist[pixel] ] }
pixels_array.reverse!
pixels_array[0] # ["#34689A", 42766]

joshsmith

require 'rmagick'

colors = ["#660000", "#990000", "#cc0000", "#cc3333", "#ea4c88",
   "#993399", "#663399", "#333399", "#0066cc", "#0099cc", "#66cccc",
   "#77cc33", "#669900", "#336600", "#666600", "#999900", "#cccc33",
   "#ffff00", "#ffcc33", "#ff9900", "#ff6600", "#cc6633", "#996633",
   "#663300", "#000000", "#999999", "#cccccc", "#ffffff"];

def convert_rgb_to_xyz(r, g, b)
   var_R = ( r / 255.0 )                     # RGB from 0 to 255

joshsmith

require 'rmagick'

def convert_rgb_to_xyz(r, g, b)
   var_R = ( r / 255.0 )                     # RGB from 0 to 255
   var_G = ( g / 255.0 )
   var_B = ( b / 255.0 )

   if ( var_R > 0.04045 )
      var_R = ( ( var_R + 0.055 ) / 1.055 ) ** 2.4
   else

joshsmith

colors = ArtworkColor.select("DISTINCT ON (artwork_id) artwork_id, original_color, frequency").where(:reference_color=>"#0099CC")

 ArtworkColor Load (0.8ms)  SELECT DISTINCT ON (artwork_id) artwork_id, original_color, frequency FROM "artwork_colors" WHERE "artwork_colors"."reference_color" = '#0099CC'
 
=> [#<ArtworkColor artwork_id: 1, original_color: "#34689A", frequency: 81.4>,
#<ArtworkColor artwork_id: 2, original_color: "#00ACED", frequency: 82.4>,
#<ArtworkColor artwork_id: 5, original_color: "#3D6192", frequency: 24.9>,
#<ArtworkColor artwork_id: 8, original_color: "#6691AF", frequency: 16.5>,
#<ArtworkColor artwork_id: 13, original_color: "#287583", frequency: 21.5>] 

joshsmith

# Use CMC(2:1)
l = 2
c = 1

c1 = sqrt( (a1 ** 2) + (b1 ** 2) )
c2 = sqrt( (a2 ** 2) + (b2 ** 2) )

delta_l = l1 - l2
delta_a = a1 - a2
delta_b = b1 - b2

joshsmith

= link_to(comment_create_comment_vote_path(@comment, :comment_vote => { :comment_id => @comment.id, :user_id => current_user.id, :vote_flag => true }), {:method => :post, :remote => true, :class => 'like-comment'}) do
  %i.icon-thumbs-up
  %span.helpful-text Mark helpful

joshsmith

Completed 500 Internal Server Error in 4ms

ActiveModel::MassAssignmentSecurity::Error (Can't mass-assign protected attributes: tag):
  activemodel (3.2.8) lib/active_model/mass_assignment_security/sanitizer.rb:48:in `process_removed_attributes'
  activemodel (3.2.8) lib/active_model/mass_assignment_security/sanitizer.rb:20:in `debug_protected_attribute_removal'
  activemodel (3.2.8) lib/active_model/mass_assignment_security/sanitizer.rb:12:in `sanitize'
  activemodel (3.2.8) lib/active_model/mass_assignment_security.rb:230:in `sanitize_for_mass_assignment'
  activerecord (3.2.8) lib/active_record/attribute_assignment.rb:75:in `assign_attributes'
  activerecord (3.2.8) lib/active_record/base.rb:498:in `initialize'
  cancan (1.6.8) lib/cancan/controller_resource.rb:85:in `new'

joshsmith

          = form_for(:artwork_tag, :url => "/artworks/#{@artwork.id}/tags/create", :html => { :method => :create, :class => 'form-horizontal' }, :remote => true) do |f|
            .control-group
              = f.hidden_field :artwork_id, :value => @artwork.id
              = f.hidden_field :user_id, :value => current_user.id
              = f.text_field :tag, :class => "input-medium"
              = f.submit "Add Tag", :class => "btn btn-small btn-primary"

joshsmith

class Ability
  include CanCan::Ability

  def initialize(user)
    user ||= User.new # guest user (not logged in)

    can :manage, User, :id => user.id
    can :manage, Comment, :user_id => user.id
    can :manage, CommentVote, :user_id => user.id
    can :read, :all