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ISSN: 1023-5086


ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2021-88-11-90-96

УДК: 621.9, 621.9.08

Measurement of contamination concentration using an adjustable image contrast method

For Russian citation (Opticheskii Zhurnal):

Самуков А.Д., Черкасова М.В., Куксов М.П., Дмитриев С.В. Измерение концентрации загрязнения металлической стружки остатками смазочно-охлаждающей жидкости методом регулируемого контраста изображения // Оптический журнал. 2021. Т. 88. № 11. С. 90–96.


Samukov A.D., Cherkasova M.V., Kuksov M.P., Dmitriev S.V. Measurement of contamination concentration using an adjustable image contrast method  [in Russian] // Opticheskii Zhurnal. 2021. V. 88. № 11. P. 90–96.

For citation (Journal of Optical Technology):

A. D. Samukov, M. V. Cherkasova, M. P. Kuksov, and S. V. Dmitriev, "Measurement of contamination concentration using an adjustable image contrast method," Journal of Optical Technology. 88(11), 678-682 (2021).


The results of an investigation that focused on the development of an adjustable image contrast method are presented. The method was designed to solve the applied problem of measuring the concentration of contamination of recoverable scrap with cutting fluid to enhance the accuracy of visual inspection methods. The currently used control method is based on visual assessment of the degree of contamination of a sheet of paper after its contact with a sample of contaminated material. The proposed method entails the use of a standard image scanner for digitizing visual information in the form of oil imprints on the paper and its subsequent processing by adjusting the image contrast, which makes it possible to obtain quantitative information on the object under investigation. The principal parameters of oil imprint scanning and subsequent processing of the obtained images were determined during the course of the study. Equations for calculating the values of reduction of cutting fluid content in the cleaned samples with respect to its initial concentration were obtained. The main concepts of the proposed method were formulated. Its main advantage is its simplicity and the use of commonly available, inexpensive control and measuring equipment.


quantitative method of quality control, flatbed scanner, digital image processing, adjustable image contrast method


The research was supported by the grant of the Russian Science Foundation (20-7910125).

OCIS codes: 000.2170, 070.4560, 120.5800, 100.0100, 100.2000, 100.2960


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