readme.txt

基于图象的数据隐写和提取matlab代码

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