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All of my methods are failing me in various ways. different lighting can mess it all up too.
has anyone every trying to return a name given a rgb value? "red" "green" "blue" would be enough to satisfy my needs for today.
i have unsafe byte processing of images from my web cam.
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There is a program called pynche which can change RGB to colour name in English for Python. You can try to use the method ColorDB. nearest() in ColorDB.py which can do what you want.
First ValueTake the first number, 220, and divide by 16. 220 / 16 = 13.75, which means that the first digit of the 6-digit hex color code is 13, or D. Take the remainder of the first digit, 0.75, and multiply by 16. 0.75 (16) = 12, which means that the second digit of the 6-digit hex color code is 12, or C.
To display black, set all color parameters to 0, like this: rgb(0, 0, 0). To display white, set all color parameters to 255, like this: rgb(255, 255, 255).
If you have a list of known colors with names, you can see which of those known colors a given target color is 'closest' to, using a 'closeness' function along the lines of (F# code):
let Diff (c1:Color) (c2:Color) =
let dr = (c1.R - c2.R) |> int
let dg = (c1.G - c2.G) |> int
let db = (c1.B - c2.B) |> int
dr*dr + dg*dg + db*db
Whichever one of the known colors has the smallest diff to the target color you want to name, use that name.
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