Abstract
The most sensitive Arabic text available online is the digital Holy Quran. This sacred Islamic religious book is recited by all Muslims worldwide including non-Arabs as part of their worship needs. Thus, it should be protected from any kind of tampering to keep its invaluable meaning intact. Different characteristics of Arabic letters like the vowels (), Kashida (extended letters), and other symbols in the Holy Quran must be secured from alterations. The cover text of the Quran and its watermarked text are different due to the low values of the Peak Signal to Noise Ratio (PSNR) and Embedding Ratio (ER). A watermarking technique with enhanced attributes must, therefore, be designed for the Quran’s text using Arabic vowels with kashida. The gap addressed by this paper is to improve the security of Arabic text in the Holy Quran by using vowels with kashida. The purpose of this paper is to enhance the Quran text watermarking scheme based on a reversing technique. The methodology consists of four phases: The first phase is a pre-processing followed by the second phase-the embedding process phase—which will hide the data after the vowels. That is, if the secret bit is “1”, then the kashida is inserted; however, the kashida is not inserted if the bit is “0”. The third phase is the extraction process and the last phase is to evaluate the performance of the proposed scheme by using PSNR (for the imperceptibility) and ER (for the capacity). The experimental results show that the proposed method of imperceptibility insertion is also optimized with the help of a reversing algorithm. The proposed strategy obtains a 90.5% capacity. Furthermore, the proposed algorithm attained 66.1% which is referred to as imperceptibility.
Highlights
A digital watermark is a digital signal or sample that can be seen as a sort of digital signature inserted right into digital data for the protection of copyright ownership of digital statistics, including text, image, video, audio, etc; [1]
( ) in the Quran’s text and the redundant letters in the word
This paper proposes a new approach for improving the embedding capacity and impressibility
Summary
A digital watermark is a digital signal or sample that can be seen as a sort of digital signature inserted right into digital data for the protection of copyright ownership of digital statistics, including text, image, video, audio, etc; [1]. The contributions of this paper is hoped to improve the embedding capacity and imperceptibility by proposing that the Quran text watermarking method be used in preserving the original text and meaning of the Quran which is based on vowels with three different types of characters ( ) in the Quran’s text (which is the most frequently used in the Arabic language) and the redundant letters in the word. Vowels in Arabic can be defined as animated sounds which help to determine word pronunciation, and writing them is the same as normal but their placement gives them different pronunciations The presence or absence of a Kashida will not affect the meaning of the text, rather just gives the text an informal style
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