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Quantization of an RGB color code into a palette

By Federico Iori,

We have a table DIM_ESHOP_PHONE, containing a column Color_RGB in RGB Hex Format . We want to reduce the color to a given palette of colors, contained into the table DIM_COLOR . We simply associate the RGB code to the palette using the minimal cartesian 3d distance  , defined as

POWER( Power((R-Ro),2)+Power((G-Go),2)+Power((B-Bo),2) , 0.5) .

It works.

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