Discrete Cosine Transform using in Hiding Image Technique | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 23, Issue 7, October 2012, Pages 157-168 | ||
| Author | ||
| Jameelah H.S | ||
| Abstract | ||
| Steganography is the art of hiding the fact that communication is taking place, by hiding information in other information. Many different carrier file formats can be used, but digital images are the most popular because of their frequency on the internet. In this paper a steganography technique designed based on substituting a similar block of embedded image within a cover image. Least significant bit (LSB) insertion technique is an approach for embedding information in a cover image. Transform technique has also played some important role in embedding the message by modulating coefficients in a domain transform. Discrete cosines transform (DCT) works by using quantization on the least important parts of the image in respect to human visual capabilities. | ||
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