though the image is sent via IMS or SNS, but a recipient cannot recover the original image.However, in the proposed application, a message can be represented by the data embedding method. Fig. 5 represents an example of photo message application. A user can writes a message on an image and the application keeps x and y coordinates of the start position relative to the image origin and trajectories in a certain time intervals of the message, and then the start position and all trajectories of the message are encoded in the embedded data area. If a recipient receives a photo message the recipient can see the message with on the decoded image (without embedded data area image).