Browsing by Author "Zonyfar, Candra"

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    APPLICATION OF ANALYTICAL HIERARCHY PROCESS (AHP) METHOD TO DETERMINE THE SELECTION OF QUALITY WORK PACKAGES: A STUDY ON THE BUDGET PLAN OF PERUM PERURI KARAWANG
    (International Journal of Psychosocial Rehabilitation, Vol. 24, Issue 1, 2020) Baihaqi, Kiki Ahmad; Zonyfar, Candra; Sukenda
    Implementation of the method of Analytical Hierarchy Process ( AHP ) can be used to classify some fields such as that involving multiple choice , the research is involved to determine the RAB in an election the quality of the material the material and the work of development . Thus obtained points packaged material what only the use and budget how alone are shown in a study of this could be a reference to election package workmanship in a project workmanship of building both the office and home, in terms of this home office. The results of testing the functions and needs of stakeholders using the User Acceptance Testing (UAT) method indicate the level of satisfaction and suitability of the stakeholders. Samples were taken throughout the part of the department that handles the work is that a number of 7 to 6 parameters of assessment.
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    PIXEL VALUE DIFFERENCING AND MODULUS FUNCTION METHOD FOR EMBEDDED MESSAGE IN DIGITAL IMAGES
    (International Journal of Psychosocial Rehabilitation, Vol. 24, Issue 1, 2020) Zonyfar, Candra; Baihaqi, Kiki Ahmad; Pertiwi, Annisa Bela
    Image steganography is technique hiding messages into digital images so that secret message unvisually. This research discusses of steganography apply by modulus function algorithm and pixel value differencing (PVD) algorithm. We carried out public datasets image 256x256 and 512x512 constituent. Messages could be embedded in the form of text characters of a certain length. Modulus function and pixel value differencing algorithm manages to hide the message so that no change is seen between the cover object and the cross-sectional image. This research was proven to be successful in the process of recovering secret messages. Evaluation were made using peak signal to noise ratio, mean square error, normalized cross correlation and structural content. From the experimental results, measurement value is based on the level of similarity between cover image and stego object with modulus function method is better with an average normalized cross correlation and structural content 1.0000 and 0.999543 respectively.