## 2 Related Works
### Color Standardization
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Ref.** & **Year** & **Problem Solved** & **Dataset Used** & **Color Correction Strategy** \\ \hline
[10] & 2022 & \begin{tabular}{c} Color variations within clinical \\ images of maxillofacial prosthetic \\ silicone specimens \\ (in vitro approach) \\ \end{tabular} & \
\begin{tabular}{c} Images of the pigmented \\ prosthetic silicone specimens \\ within different ambient \\ lighting conditions \\ \end{tabular} &
\begin{tabular}{c} Computerized software-based \\ post-processing white balance \\ calibration (PPWBC) using a gray \\ card and Macbeth color chart \\ \end{tabular} \\ \hline
[11] & 2023 & \begin{tabular}{c} Non-invasive cultural heritage \\ conservation in the context of \\ material degradation \\ \end{tabular} & \
\begin{tabular}{c} Four sets of images in \\ different lighting conditions, \\ acquired with a conventional \\ cellphone camera in sRGB \\ color space \\ \end{tabular} &
\begin{tabular}{c} An adaptive transfer function, \\ working with a self-made color \\ calibration chart; neural \\ network-based final tuning of the \\ calibration functions \\ \end{tabular} \\ \hline
[12] & 2023 & \
\begin{tabular}{c} Prime samples from \\ 58 patients photographed in \\ a customized photo box, \\ under five simulated lighting \\ conditions, using five \\ smartphones in RGB \\ color space \\ \end{tabular} &
\begin{tabular}{c} Color calibration with \\ SpyderCHEK\({}^{\text{TM}}\) color chart and \\ the Adobe Photoshop proprietary \\ algorithms to scale the uncorrected \\ RGB values \\ \end{tabular} \\ \hline
[13] & 2023 & \begin{tabular}{c} A smartphone-based solution for \\ accurate colorimetric \\ measurements, with an \\ augmented-reality guiding system \\ \end{tabular} & \
\begin{tabular}{c} Simulated and real images, \\ images of color stripe kits for \\ pH reading \\ \end{tabular} &
\begin{tabular}{c} A color correction algorithm with \\ the first-order spatial varying \\ regression model which leverages \\ both the absolute color magnitude \\ and scale; the system includes a \\ color reference board \\ \end{tabular} \\ \hline
[14] & 2023 & \begin{tabular}{c} Assessment of the healing process \\ of chronic wounds \\ \end{tabular} & \
\begin{tabular}{c} Wound tissue images taken \\ at different times, under \\ different lighting conditions, \\ distances, lenses, and \\ smartphone cameras in RGB \\ color space \\ \end{tabular} &
\begin{tabular}{c} Images of wound tissue taken with a \\ Macbeth chart of 24 square color \\ patches and four ArUco markers at \\ corners of the chart; transformation \\ matrix calculation using the \\ Moore–Penrose inverse matrix and \\ the target matrix \\ \end{tabular} \\ \hline
[15] & 2024 & \begin{tabular}{c} A general purpose algorithm \\ \end{tabular} & \
\begin{tabular}{c} Photos of nature and city \\ landscapes, vegetation, and \\ human-made objects in RGB \\ color space \\ \end{tabular} &
\begin{tabular}{c} A matrix-based transformation \\ using tensor product B-splines with \\ optimization of the smoothing \\ parameter \(\lambda\) and number of spline \\ basis functions \\ \end{tabular} \\ \hline
[16] & 2024 & \begin{tabular}{c} Reproduction of reference color of \\ textile clothing by selecting \\ appropriate disperse dyes \\ \end{tabular} & \
\begin{tabular}{c} Results of colorimetric \\ measurements using a \\ spectrophotometer type \\ Spectralfash 600 Plus \\ (Datacolor International, \\ USA) \\ \end{tabular} &
\begin{tabular}{c} A genetic algorithm to optimize the \\ selection and concentration of dyes \\ for exact color matching in \\ bicomponent (PET/PTT) filaments \\ \end{tabular} \\ \hline
[17] & 2024 & \begin{tabular}{c} Optimization of the \\ appearances of plant-based foods \\ considering that animal-based \\ products may contain a \\ wide range of different pigments \\ and structural elements that \\ scatter light \\ \end{tabular} & \
\begin{tabular}{c} L\({}^{*}\), a\({}^{*}\), b\({}^{*}\) values of \\ animal-based products and \\ plant-based emulsions \\ produced measured by \\ colorimeter (ColorFlex EZ \\ 45/0-LAV, Hunter Associates \\ Laboratory Inc., Reston, \\ VA, USA) \\ \end{tabular} &
\begin{tabular}{c} The color matching model based on \\ Kubelka–Munk theory, used to \\ calculate the spectral reflectance of \\ the mixed emulsions from the \\ spectral reflectance of the individual \\ color-loaded emulsions \\ \end{tabular} \\ \hline
[18] & 2024 & \begin{tabular}{c} Color design for fashion—color selection and matching different \\ color combinations \\ \end{tabular} & \
\begin{tabular}{c} Graphic objects designed in \\ CoreDraw \\ \end{tabular} &
\begin{tabular}{c} Color matching based on an \\ interactive genetic algorithm using \\ reference images \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table}