Colorimetric Research of the Self-Luminous Objects in Software and Hardware Environments by the Method of Multidimensional Scales Implementation

Abstract

Colorimetry is a color measurement performed in accordance with the adopted system of conventions (international agreements) [1]. Basic colorimetry [2] includes standard models of observation conditions and is used in the control of products in medicine, chemistry, printing, painting, and automotive industry [3-5]. High colorimetry "includes the methods for assessing the perception of color stimulus presented to the observer in a complex environment that we observe in everyday life» [2, 6], i.e. in real conditions of observation and is used for example in the development of lighting scenarios. High resolution colorimetry is a methodology of qualitative and quantitative methods for studying the color characteristics of self-luminous and non-self-luminous objects based on digital registration technologies and digital images processing which allows to provide reliable results with a given level of reliability. Sometimes we can have situations when any of the color channels in the digital image are in saturation or at noise level and the color range of the recording device is sharply narrowed, causing distortion of the measurement information. The developed method provides new measurement capabilities as it allows by repeatedly registering the surface of the object to calculate the brightness values in three color channels differing by several orders of magnitude by comparing the brightness of each point of the object with the reference brightness of reference samples and performing mathematical transformations using conventional scales which will calculate the color coordinates in the standard color space for each control point of the object. Research Laboratory of Optoelectronic Instrumentation (Belarusian National Technical University, Minsk, Republic of Belarus) develops the methodology as a part of the tasks of the State research Program "Electronics and Photonics».