cryptoPNG Read or write secret message hidden from/to PNG image. Reading/writing secret text from/to image. Every 3 bits are encoded to 3x3 pixelgrid. Central pixel keeps the information, each channel of RGB represents one bit. If at least one of a neighbouring pixels color channel is same as color channel of central pixel, value is True, else False. http://code.google.com/p/cryptopng/downloads/list Vojtech Smejkal 02aede23877003de8b5615f53a6473d07eecb4ff 0.1