Skema Proteksi Hak Cipta untuk Citra Warna Digital Menggunakan Visual Cryptography
Abstract: Currently, cases of
misuse of intellectual property such as digital image have occurred frequently.
Copyright protection needs to be done to reduce the occurrence of cases of
misuse of a digital image by an unauthorized person. Watermark image can be used
to mark the ownership of a digital image. In this paper, a copyright protection
scheme based on visual cryptography for digital color image is proposed. Visual
cryptography is chosen because it is easy to implement and has a high level of
security. Unlike most conventional watermarking schemes, the image to be
protected is not directly modified by embedding the watermark into it. Visual
cryptography technique is used to generate two share images, namely ownership
share image and master share image. To identify the ownership of the image, the
watermark can be obtained by stacking the master share image with the ownership
share image. Some experiments are carried out to assess the robustness and
security performance of the proposed scheme. The results show that the proposed
scheme meets the security criteria and has shown robustness against image
processing attacks, demonstrated by the acquisition of the average value of the
extracted watermark accuracy ratio that is equal to 0.94537.
Penulis: Septia Rani, Agus
Harjoko
Kode Jurnal: jptlisetrodd160429
