"Do you know of any guides to do this? Are you aware of any free software to convert the image data into a usable stream of random data?" Look into LavaRnd [1]

"Do you know of any guides to do this? Are you aware of any free software to convert the image data into a usable stream of random data?" Look into LavaRnd [1][2][3][4]. [1] What is LavaRnd? http://www.lavarnd.org/what/index.html http://www.lavarnd.org/what/index.html [2] LavaRnd Process in Detail: http://www.lavarnd.org/what/process.html http://www.lavarnd.org/what/process.html [3] Construction of a LavaCan: http://www.lavarnd.org/what/can-details.html http://www.lavarnd.org/what/can-details.html [4] Source code (open source): http://www.lavarnd.org/download/index.html http://www.lavarnd.org/download/index.html