0.3 Steganography matlab code

detect_data_power.m Detects if the given image has data hidden in it with the zeros hiding method

hidden_zeros_read.m Reads data hidden by zeros hiding method from an image

image_hist.m Creates histogram of DCT coefficients

image_stat.m Determines the threshold value for zero hiding detection

invimageproc.m Takes tiled matrix and converts to image matrix

jvector.m Traverses 8x8 block using the zig-zag pattern

mat2DCEB.m Compresses image and returns tiled matrix

readdata.m Reads in binary data from a file

secread.m Reads in data hidden by bit-o-steg from an image

signed_mat2DCEB.m Modified compressor used in zeros hiding

std_stegcompress.m Groups zeros together and saves image

stegcompress.m Takes a compressed image and hides data in it using bit-o-steg

writedata.m Writes binary data to a file