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Volume 38 #4

Contents

  1. MECHANICAL STIMULATION OF THE SOLES SUPPORT ZONES AS A COUNTERMEASURE OF NEGATIVE EFFECTS OF MOTOR UNLOADING
  2. THE COCHLEAR AQUEDUCT AND ITS SIGNIFICANCE IN HEARING PATHOLOGY. LITERATURE REVIEW AND CLINICAL CASE
  3. THE EFFECT OF SENSORY-COGNITIVE TRAINING ON PERCEPTION, ATTENTION AND MEMORY IN ELDERLY PEOPLE
  4. LOCALIZATION OF A SOUND SIGNAL IN THE VERTICAL PLANE UNDER MASKING CONDITIONS
  5. THE SPATIAL HEARING DISABILITY MEASURED BY THE SPATIAL HEARING QUESTIONNAIRE IN CLINICALLY NORMAL-HEARING AND IN MILD OR MODERATE SENSORINEURAL HEARING LOSS PERSONS
  6. THE REPRESENTATION OF HEART CONTRACTIONS IN SOME AUDITORY PARTS OF THE TEMPORAL CORTEX IN A NONANESTHETIZED CAT
  7. COMPUTATIONALLY EFFICIENT ADAPTIVE COLOR CORRECTION

COMPUTATIONALLY EFFICIENT ADAPTIVE COLOR CORRECTION

© 2024 M. V. Kharkevich, O. A. Basova, I. A. Konovalenko

Institute for Information Transmission Problem RAS, 127051, Moscow, Bolshoy Karetnyy lane, 19, Russia
Moscow Institute of Physics and Technology (National Research University) 141700, Dolgoprudny, Institutskiy lane, 9, Russia
Federal Research Center “Informatics and Management” RAS, Vavilova st. 44, b. 2, 119333, Moscow, Russia

Received 25 Jun 2024

To obtain a photo that reproduces the original scene as accurately as possible, it is necessary to solve the problem of color correction, that is, to find a mapping that translates the coordinates of the camera color space (RGB) into the coordinates of the human color space (CIE XYZ). In this article, we consider color correction using lookup tables, pre- built for various lighting conditions. This approach allows you to achieve high speed and accuracy when applying color correction on the device, but requires large amounts of RAM, which, for example, mobile phones do not have. We propose a method for automatic thinning of a set of search tables without loss of accuracy of color correction. The method is based on clustering of the mappings that specify the color correction. To compare the mappings, we propose a criterion for their similarity based on the maximum difference of the generated colors in the target space of a standard CIE XYZ observer. For the proposed criterion, the article provides an effective calculation method and, together with a theorem justifying the correctness of the method.

Key words: adaptive color correction, similarity criterion of mapping, lookup table, mathematical programming, clustering

DOI: 10.31857/S0235009224040077  EDN: ACVQWZ

Cite: Kharkevich M. V., Basova O. A., Konovalenko I. A. Vychislitelno effektivnaya adaptivnaya tsvetovaya korrektsiya [Computationally efficient adaptive color correction]. Sensornye sistemy [Sensory systems]. 2024. V. 38(4). P. 78–84 (in Russian). doi: 10.31857/S0235009224040077

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