THE MODEL OF FACTORS INFLUENCING THE QUALITY OF DIGITAL IMAGES

Abstract

The peculiarities of quality formation of digital images have been investigated. The main factors influencing the quality of raster images have been identified and described: resolution, color depth, color model, file format, file size, image size, compression, brightness, saturation, sharpness. Direct and indirect influences and dependencies between factors have been demonstrated. To determine the priority levels of the identified factors, a method of hierarchical mathematical modeling has been used. A reachability matrix has been developed, where the presence of connections between factors is indicated by one, and absence by zero. Iterative tables have been constructed, containing the ordinal number of the factor, subsets of reachable vertices, subsets of predecessor vertices, and intersections of subsets of vertices. Priority levels of factors have been determined. A model of the priority influence of factors on the quality of raster images has been constructed.