convert text to an binary based Image.

_.markdown

rBinmage

Converts text to Images based on 1 and 0. They can easily get coded and decoded. Works best with gif or Bitmap images.

Needs: rMagick

Example, the Script itself Encrypted:

It would be easy to implement some secure crypting. just take a look at this: https://gist.github.com/1666901

binaryimg.rb

#/usr/bin/env ruby

require 'optparse'
require 'RMagick'
include Magick

MINCOLOR="rgb(255,255,255)"
MAXCOLOR="rgb(0,0,0)"

options = {}

optparse = OptionParser.new do|opts|
   opts.banner = "Usage: ruby hidemage.rb [options] IMG-FILE.png"
 
   options[:read] = false
   opts.on( '-r', '--read FILE', "Read from exisiting Image" ) do |file|
     options[:read] = file
   end
   options[:write] = false
   opts.on( '-w', '--write STRING|FILE', "Crypt String or Filecontent\n\n" ) do |string|
     options[:write] = string
   end
 
   options[:out] = "out.gif"
   opts.on( '-o', '--output FILE', 'Specify outputfile (default: out.gif)' ) do |string|
     options[:out] = string
   end

   options[:width] = 4
   opts.on( '-W', '--width BYTE', 'Image width [* 8(Bits)]' ) do |string|
     options[:width] = string.to_i
   end

   opts.on( '-h', '--help', 'Display this screen' ) do
     puts opts
     exit
   end
end

optparse.parse!

if options[:write] != false
	string = options[:write]
	string = File.open(options[:write]).read if File.exist?(options[:write])
	puts "ERROR: No input String or File..."; exit if ((string.nil? or string.size < 4 or string == "") and options[:write] != false)
	puts "Try: ruby binaryimg.rb -h\n"; exit if !options[:read] and !options[:write]

	puts "INPUT: #{string}"
	@chars = Array.new
	string.each_byte do |b|
		@chars << "%08d" % b.to_s(2)
	end

	out = Magick::Image.new((options[:width]*8), (@chars.size/options[:width]))
	puts "Image Size: #{(options[:width]*8)}x#{@chars.size/options[:width]}"

	@col = 0
	@row = 0

	@chars.each do |b|
		b.split("").each do |n|
			if n.to_s == "1"
				color = MAXCOLOR
			else
				color = MINCOLOR
			end
			out.pixel_color(@col,@row,color)
			if @col == (options[:width]*8)-1
				@col = 0
				@row += 1
			else
				@col += 1
			end
		end
	end

	out.write(options[:out])
end
if options[:read] != false
	img = ImageList.new(options[:read]).first
	out = ""
	aut = Array.new
	img.each_pixel do |p,c,r|
		out += "1" if "rgb(#{p.red.to_i/257},#{p.green.to_i/257},#{p.green.to_i/257})" == MAXCOLOR
		out += "0" if "rgb(#{p.red.to_i/257},#{p.green.to_i/257},#{p.green.to_i/257})" == MINCOLOR
		if out.size == 8
			aut << out.to_s
			out = ""
		end
	end
	puts "MESSAGE IN IMAGE:"
	aut.each do |a|
		print a.to_i(2).chr
	end
	puts ""
end