Repository for Multimedia & comp. visual. project
!! Mathlab toolbox are required to launch the project which are not include in standart matlab version !!
- Configure matlab with mathab toolbox
- Clone the repository
git clone https://github.com/czomo/DCT-LSB.git- Import project to matlab
- In order to execute DCT watermarking enter
dct_wtmark('./image/<image which is gonna be watermarked>','./image_wmark/<patter used to watermarking>')Example
dct_wtmark('./image/lena.jpg','./image_wmark/bing.jpg')- In order to execute LSB watermarking enter
dct_wtmark('./image/<image which is gonna be watermarked>','./image_wmark/<patter used to watermarking>')Example
lsb_wtmark('./image/lena.jpg','./image_wmark.jpg')- /image contains photos which are to watermarked
- /image_result outut directory with ready watermarked images
- /image_wmark pattern according to which protos are gonna be watermark
- psnr.m - psnr method which is responsible for computing peak signal-to-noise ratio
- dct_wtmark.m responsible for inserting and and processing DCT watermarking
- dct_exwmark.m- transforming image into binary form,adding significant bits and finally exporting it
- lsb_exwmark.m responsible for processing LSB waterwarking, file handling
- lsb_wtmark.m processing image acording to LSB method
- image is imported
- transforming image to gray scale imgage
- resizing image to resolution 512x512
- image is divided to 8x8 blocks
- watermark pattern is divaded in the same blocks of image
- image and patern are forming in row of 32 by 8x8 elements
- extracting watermark
- formating colums into 32x32 matrix
- inseritng colums back into blocks
- recombining blocks into full image
- displaying plot of image, watermark pattern, final resoult image