  We have developed an innovative lighting system that changes specific target
colors while keeping the lights appearing naturally white. By precisely
controlling the spectral power distribution (SPD) of illumination and
harnessing the unique phenomenon of metamerism, our system achieves unique
color variations in ways you've never seen before. Our system calculates the
optimal SPDs of illumination for given materials to intensively induce
metamerism, and then synthesizes the illumination using various colors of LEDs.
We successfully demonstrated the system's implementation at Paris Fashion Week
2024. As models step onto the stage, their dresses initiate a captivating
transformation. Our system altering the colors of the dresses, showcasing an
impressive transition from one stunning color to another.
