The △Eab color difference formula is currently the most widely used color difference formula in the world, and its essence is the distance between two colors in the color space.
The △Eab color difference formula expresses the total color difference with a numerical value.
The smaller the △Eab value, the smaller the color difference between the two colors, and the closer the two colors are visually;
The larger the △Eab value, the greater the color difference between the two colors, and the more obvious the visual difference between the two colors.
