4 ms·
It sounds like all this paper says is that the metric of the color spaces is non-linear, i.e. the perceived distance between two colors doesn't really agree wit
by eterevsky 4y ago
It sounds like all this paper says is that the metric of the color spaces is non-linear, i.e. the perceived distance between two colors doesn't really agree with the Euclidean distance between 3D points representing them. I think this is more or less well-known.
- OscarCunningham 4y agoThey're saying it's not just non-Euclidean but also non-Riemannian. The distance between two points is shorter than the length of the shortest path between them. For a simple example of such a space, imagine a circle where we define the distance between two points to be measured 'as the crow flies', but we demand that all paths remain on the circle rather than passing through its interior.
- quickthrower2 4y agoThat example would be similar to using as the crow flies for distances when driving on roads.