|International Journal of Computer Applications
|Foundation of Computer Science (FCS), NY, USA
|Volume 109 - Number 3
|Year of Publication: 2015
|Authors: Priyanka B. Kutade, Parul S. Arora Bhalotra
Priyanka B. Kutade, Parul S. Arora Bhalotra . A Survey on Various Approaches of Image Steganography. International Journal of Computer Applications. 109, 3 ( January 2015), 1-5. DOI=10.5120/19165-0620
Steganography is an art of concealing the fact with the purpose of communication, by hiding one information in other information. In steganography, many different carrier file formats are used now days, but the digital images are most popular for hiding information because of their frequency on Internet. There is a large variety of techniques of steganography are available for hiding secret information into images. Each of them has its strong & weak points. Choice of which steganography technique is used it depends on the different requirements of the application. For example, some applications may have need of a bigger secret message to be concealed and some need absolute invisibility of the secret message. This paper gives an overview of different techniques used for image steganography. Among these following techniques DCT & DWT techniques are widely used because of their efficiency.