黑白變彩色 Change color

今天織完另一件作品，室內一般光線下是黑白畫面，換在陽光下會變成彩色的畫面，至於如何讓作品在畫廊中產生變色的效果，還有一些技術性問題需要解決。
Today I finish weaving a piece. It changes from black & white to color image under strong sunlight. How to create this color transformation inside a gallery? There are some technical problems to be solved.

indoor

outdoor