the opposite really, measuring both tone contrast and luminosity contrast from the background average separately and extracting them is instead more robust for

the opposite really, measuring both tone contrast and luminosity contrast from the background average separately and extracting them is instead more robust for goods that have patterns, i.e. https://www.seven.eu/it_it/seven/zaini.html https://www.seven.eu/it_it/seven/zaini.html it also works both ways, so white elements having a color accent and a dark contrast element still have them recognized for what they are