NO-REFERENCE ASSESSMENT OF THE GENERALIZED CONTRAST OF COMPLEX MONOCHROME IMAGES
Journal Title: Вісник Національного університету "Львівська політехніка", серія "Радіоелектроніка та телекомунікації" - Year 2017, Vol 874, Issue 2017
Abstract
The problem of no-reference measurement of generalized (full integral) contrast of complex (multi-element) monochrome images for objective assessment of their quality is considered in this paper. Different approaches to the quantitative assessment of the generalized contrast of a complex monochrome image on the basis of an analysis of the contrast values of image elements relative to a preset level of adaptation are considered. The task of measuring the contrast of image elements (objects and background) for a preset adaptation level is solved. A new method of measuring the contrast of two image elements for a preset adaptation level using various definitions of the contrast kernel is proposed. New definitions of the weighted and absolute contrast of two image elements for a preset adaptation level are proposed. New definitions of generalized contrast and incomplete integral contrast of a monochrome image for weighted and absolute contrast are proposed. A comparison of proposed and known definitions of generalized contrast and of incomplete integral contrast of monochrome image for weighted and absolute contrast of image elements is carried out.
Authors and Affiliations
Yuriy Romanyshyn, O. Hranovska
Keywords
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