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smol_scriptz/highlight_colors.rb

28 lines
896 B

#! /usr/bin/ruby
require 'chunky_png'
image1 = ChunkyPNG::Image.from_file(ARGV[0])
keyR = ARGV[1]
keyG = ARGV[2]
keyB = ARGV[3]
def go(r, g, b, image)
range = 2
if (r.to_i > 255) || (r.to_i < 0) || (g.to_i > 255) || (g.to_i < 0) || (b.to_i > 255) || (b.to_i < 0)
puts 'Invalid arguments. Syntax is ./findColorin [IMAGE] [R VALUE] [G VALUE] [B VALUE]'
return 0
end
(0..image.dimension.width - 1).each do |x|
(0..image.dimension.height - 1).each do |y|
if (image[x, y] > ChunkyPNG::Color.rgb(r.to_i - range, g.to_i - range, b.to_i - range)) && (image[x, y] < ChunkyPNG::Color.rgb(r.to_i + range, g.to_i + range, b.to_i + range))
image[x, y] = ChunkyPNG::Color.rgb(0, 0, 0)
else
image[x, y] = ChunkyPNG::Color.rgb(255, 255, 255)
end
end
end
puts 'Saving to output.png'
image.save('output.png')
end
go keyR, keyG, keyB, image1