at the first frame, there is title &acirc;€œonline signature steganography system&acirc;€. then have two button, ENCODE and DECODE. when i click ENCODE button, it will go to another page, where has drawing panel to I input the signature, and save the signature image in a folder. You can do it by using button or automatically. then there have CLEAR button, to clear the drawing panel and also PROCEED button. the PROCEED button will link to another page and also do the chaincode process. Chaincode code i will give. And it must popup the length of secret message that can be stored.
After click PROCEED, chaincode process done, it will link to a page, where user need to key-in secret message depend on the length that get from the chaincode process. And encode the text into the image, using encode process. encode code i will give. And the new image after encode process is saved in the same folder with original image but different name.
For DECODE button, it will link to another page, where there have label &acirc;€œchoose original photo&acirc;€ and &acirc;€œchoose stego photo&acirc;€ with browse button. The stego photo need to be compared with original photo to get back secret message. this is using decode process and the code i will give.