DEVELOPMENT OF A ROBUST DIGITAL IMAGE WATERMARKING TECHNIQUE IN DISCRETE ORTHONORMAL STOCKWELL TRANSFORM DOMAIN BASED ON PHOTON POLARIZATION
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 3000
Excerpt from the Study
This study focused on the development of novel digital image watermarking technique in DOST domain in conjunction with DWT and SVD based on the principle of photon polarization using optimal scaling factor. The developed algorithm is applied on colour images. The cover images used are standard colour Lena and Pepper images of same size (512 x 512 x 3). The watermark information adopted includes standard colour Mandril image of size (512 x 512 x 3) and Nepal Telecom logo of size (512 x 512 x 3). The algorithm was developed and implemented in MATLAB R2015b. It was experimentally observed that the use of private key obtained from QKD scheme with concatenated DOST, DWT and SVD using optimal scaling factor offers improvements in robustness against attacks. The improvement occurred when compared to the technique of embedding without private key generated from QKD scheme and optimal scaling factor. This arrangement gives additional adaptability in controlling the optimal balance between 165 watermark robustness and the perceptual superiority of the watermarked image. Although, the balance between the two deliverables is made possible because of the optimal scaling factor adopted using PSO scheme. The performance of the algorithm is evaluated to ascertain watermarked image quality and honest reconstruction of the extracted watermark using PSNR, NCC and SSIM as performance metrics. The PSNR with a good value of at least 35dB defines the imperceptibility indicating the degree of visual similarity between the cover image and watermarked image. A high value of NCC (one or almost one) defines the robustness of the algorithm after subjecting the watermarked image to different attacks and this depicts the level of similarity between the original watermark and extracted watermark. The SSIM also exhibited similar characteristics with the NCC as it showed the similarity between the original cover image and watermarked images. The results of the PSNR values when the encrypted watermark image was embedded in the cover image (watermarked image) and subjected to Gaussian, salt and pepper, speckle, rotated at 45 degree, rotated at 5 degree, rotated at 90 degree and crop attacks are 50.2752dB, 47.7293dB, 45.6404dB, 46.8626dB, 44.6045dB, 47.9442dB and 46.4067dB respectively, this proves that the perceptual quality has been improved. The NCC values are 1, 1, 1, 0.9997, 1, 1 and 1, and this signifies that the algorithm is highly resistance to attacks. The SSIM values are 1, 1, 1, 0.99998, 0.9996, 0.9999 and 0.9987 respectively. Therefore, the developed watermarking technique delivered an imperceptibility improvement when compared with the ITU-R standard value of 35dB for digital image watermarking technique by 30%, 27%, 23%, 25%, 22%, 27% and 25% respectively. The technique is also shown to be robust since NCC values obtained are 1s except 5 degree rotation which is 0.9997 when compared with the ITU-R standard of 1 for
Related Project Materials
ENTREPRENEURSHIP ENGAGEMENT AS THE FULCRUM OF ECONOMIC GROWTH IN DEVELOPING NATION - NIGERIA (A STUDY OF SELECTED SMES IN LAGOS, NIGERIA)
Background of the study
The country of Nigeria is naturally endowed with entrepreneurial prospects; yet...
THE IMPACT OF FOREIGN LOAN AND FOREIGN INVESTMENT ON THE NIGERIA ECONOMY
ABSTRACT
This study examined the impact of foreign loan and foreign investment on the Nigerian economy. Real gross domes...
ANALYSIS OF THE LEGAL AND INSTITUTIONAL FRAMEWORKS FOR THE PROTECTION OF INTELLECTUAL PROPERTY RIGHTS IN NIGERIA
ABSTRACT
The subject of intellectual property rights without doubt, has attained considerable universal prominence, especially in its eve...
THE IMPACT OF WORK ENVIRONMENT ON EMPLOYEE PRODUCTIVITY
ABSTRACT
This study was carried out to examine the impact of workers environment on employee produ...
COMMUNICATION CHANNELS AND ORGANISATIONAL PERFORMANCE OF NIGERIAN COMPANY
ABSTRACT
Working environments differ from all angles as well as their culture, economic and social development. In this context some of t...
DESIGN AND IMPLEMENTATION OF ELECTRONIC TICKETING SYSTEM
Background of the Study
In the advanced world like China, Britain, Australia and the United State of A...
CHALLENGES FACING SMALL SCALE HOTEL IN LAGOS
Background of the study
In recent times, small and medium scale business has been a major source of revenue...
DELIVERY OF LOW HOUSING INCOME IN NIGERIA PROSPECTS AND CHALLENGES
ABSTRACT
The research is an assessment of the delivery of low income housing in Nigeria, it analyzes the prospect and ch...
TREND IN THE USE OF HUMAN MODELS IN THE NIGERIAN ADVERTISING INDUSTRY
EXCERPT FROM THE STUDY
Advertising gives a beautiful picture of a particular product so as to gain more and more consume...
Early Childhood Education in Multilingual Settings: Challenges and Strategies
Abstract: This research explores the challenges and strategies of early childhood education in multilingual settings, focusing on...
