IMPLEMENTASI TEKNIK WATERMAKING PADA VIDEO MENGGUNAKAN ALGORITMA DISCRETE COSINE TRANSFORM (DCT)

Nowadays, digital technology gives a way to access and distribute some

information in digital formatted easier, one example of multimedia service is

video. Video as a product from intellectual creation of human, that is product

mixed between images and sounds, therefore it is essential for a multimedia

executes process concept that can give copyrighted of distribution and making

process in digitalization. Pirates or manipulation product problem from illegal

parties it could be happened because of lost security from its product, so it

becomes a problem for video provider.

One way to overcome those problems are using of text encryption process, which

were done with embedding text in a video with AVI format as input media. By

using Discrete Cosine Transform (DCT) algorithm compression which result

image media (video in MPEG-2) as output video, and RSA algorithm as data

message encryption. These processes were being done with efficiency

measurement referred to quality embedded images with respect to encode process

from manipulated digital video data.

With the production of compressed video from AVI format to MPEG-2 video

format, the video can analyzing before, it watermarked and preserved the

authentication of digital video data.