Created
January 30, 2015 18:09
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| require 'rmagick' | |
| #include Magick | |
| white = Magick::Pixel.new(255*256,255*256,255*256) | |
| img1 = Magick::Image.read('sample6.jpg').first | |
| img1.each_pixel {|pixel,x,y| | |
| if pixel.to_color != "red" then | |
| img1.pixel_color(x,y,white) | |
| end | |
| } | |
| img1.write('out.jpg') |
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