Abstract
Digital devices such as digital cameras and smartphones are important tools in capturing color images. However, images captured under a low-light condition have low contrast, low brightness, and they lose their color information. In this paper, we propose a uniform illumination image enhancement via linear transformation in CIELAB color space. The main objective of the proposed method is to preserve the image features and the hue of the enhanced images as close as possible to the original images. It is achieved by using a linear transformation of the chroma and lightness in the CIELAB color space. The proposed method consists of two main stages known as luminance and chrominance enhancements. The proposed method produces enhanced images having lesser distortion and higher similarity indexes than the other four enhancement methods.
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Data and Code Availability
The datasets and code generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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The author is grateful for the constructive comments and suggestions from the anonymous reviewers on an earlier version of the paper.
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Hassan, M.F. A uniform illumination image enhancement via linear transformation in CIELAB color space. Multimed Tools Appl 81, 26331–26343 (2022). https://doi.org/10.1007/s11042-022-12429-7
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DOI: https://doi.org/10.1007/s11042-022-12429-7