Effect of light sources on skin color appearance

Accurate skin tone estimation is essential for applications such as facial recognition, medical imaging, and the cosmetics industry, where precise color representation impacts performance and reliability. This study examines the effect of different artificial light sources on human skin color perception by analyzing colorimetric parameters (L*, a b*, hue, and chroma) under eight light sources, including LED, fluorescent, and high-pressure discharge lamps, compared to the D۶۵ daylight standard. Results indicate that light sources with higher correlated color temperature (CCT) and color rendering index (CRI) provide better skin tone reproduction, while low-CCT LEDs cause significant color shifts, particularly affecting red and yellow tones. Additionally, some light sources enhance chroma and hue contrast, altering perceived skin tone. These findings emphasize the importance of selecting appropriate lighting to ensure accurate and consistent skin color representation in applications that require color precision, such as cosmetics, dermatology, photography, medical imaging, and digital media processing industries.

کلیدواژه ها:

Skin Color ، Light Source ، Color Temperature ، Color Reproduction