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Information × Registration Number 0215U004951, 0115U004704 , R & D reports Title Graphic technology increase the level of protection of print and electronic documents popup.stage_title Head Nazarkevych Mariya Andriyvna, Доктор технічних наук Registration Date 23-12-2015 Organization Lviv Polytechnic State University popup.description2 In work the new models, methods, algorithms for digital processing of graphics and specialized software for publishing and technology of protection of print and electronic documents that can increase their level of protection. The method of protection of printed documents through the use of micrography. This paper uses a new graphics that extends the range of curves known methods fine graphics. When building micrography theory Ateb-used functions, which will build a new form of curves and implemented on the basis of their method of changing line width, offset method, a method of changing the amplitude curves. This will increase the effectiveness fine graphics. To protect documents raster graphics the method of amplitude-modulated screening, implementation of which will help to create new forms of dots that can be identified in the future. Any document with graphic content can prorastruvaty proposed technology and create a protected image. Based on the methods of construction micrography and amplitude-modulated screening evaluated image quality constructions. Done identification document printed by pixel by pixel comparison. The method of establishing the reliability of the printed document. On this basis will be formed replicas of documents that provide the ability to control the graphics in each predetermined point in the plane of the document and conduct their identification. The thickness of the line for the positive performance lines is performed within 40-80 microns, and a negative - 60-100 microns. Minimum thickness of 40 microns will reach a point that meets modern requirements of printing secure documents. Product Description popup.authors Дронюк Іванна Мирославівна Назаркевич Марія Андріївна Сидоренко Роман Вікторович Троян Оксана Анатоліївна Федевич Ольга Юріївна popup.nrat_date 2020-04-02 Close