Ready for an optical illusion that will blow your mind?
The strawberries in this picture are not actually red.
Seriously. There’s no red in this picture. It’s all part of a phenomenon called colour constancy. Basically your brain has a way of colour correcting when objects are filtered through different lights.
The pixels we see as red in this picture are actually grey.
“If you imagine walking around outside under a blue sky, that blueness is, in some sense, colour-contaminating everything you see,” Visual perception expert Bevil Conway told Motherboard.
“If you take a red apple outside under a blue sky, there are more blue wavelengths entering your eye. If you take the apple inside under a fluorescent or incandescent light without that same bias, the pigments in the apple are exactly the same but because the spectral content of the light source is different, the spectrum entering your eye that’s reflected off the object is different.”