What color is the platinum skirt in photography?

A skirt, if judged only by photos, can be platinum or black and blue. It can even be blue-brown, blue-gold and so on. The controversy is great because people will think that this photo can be taken anyway. The only difference is that the light environment in their minds is different. The Platinum Party thinks that the scene is backlit, and the white is blue, but the shadow is dyed blue by ambient light. The blue-black party thinks the scene is full of yellow light. Establish a model of platinum clothes: two completely different clothes can get almost the same photos under different brain lighting environments. Everyone should understand that this skirt may be blue and black in reality, but the white balance is not very good when taking pictures, it is very yellow. This is a comparison chart. The light on the left is uniform, and the light on the right is overhead. You can see the color difference, but it's actually quite close to the truth. The simulation did this, and everyone understood each other. The blue-black party or the platinum party try to see how the other party feels. My experiment is not to simulate this failed photography, but to try to "visualize" the process of the human brain recognizing the color and light environment of this ambiguous photo. The same two colors can be interpreted by the brain as platinum color under the background light, or as blue-black color under the influence of yellow light. Even blue gold, blue brown. In short, not bad. Kind of like an equation with two solutions. Answer one of them and score points, and the switch party can get full marks. To sum up, it's really not "I've been color blind for so many years", "anyone who sees platinum can't make rod cells work well", "those who say blue and black are lying with their eyes open" or "I'm going crazy all the time".