Comment Re:It works for printers (Score 1) 511
The colour on your screen (RGB) is "additive", that just means you start with black, you add colour to get what you want (and if you go full with RGB you get white).
The colour you print (CMYK) is subtractive, it absorbs light. It is the opposite, you start with white and as you "add" colour you will eventually end up with black.
When you are adding colour in reality you are subtracting colour, let me explain:
So if you look at my red mouse pad that means what the red pigment is doing is absorbing all the blue and yellow and only reflecting red light.
or, to be more technical, since there is no "red" in CMYK: it is absorbing all of the cyan, while reflecting magenta (and yellow).
Remember when you were painting in kindergarten and were told that the primary colours were Blue, Red and Yellow? Your teacher lied.
Well, more of a half truth. The primary colours are really Cyan, Magenta and Yellow. But they don't make a nice black, so that is why they put the K (black) into CMYK)
Of course, when you are talking about light emiting primary colours it does become Red, Green and Blue.
This is why CMYK is used in printing and RGB is used on displays. Displays pump out light, they don't reflect light. My mouse pad reflects light, it doesn't have any of its own.
/end rant.
The colour you print (CMYK) is subtractive, it absorbs light. It is the opposite, you start with white and as you "add" colour you will eventually end up with black.
When you are adding colour in reality you are subtracting colour, let me explain:
So if you look at my red mouse pad that means what the red pigment is doing is absorbing all the blue and yellow and only reflecting red light.
or, to be more technical, since there is no "red" in CMYK: it is absorbing all of the cyan, while reflecting magenta (and yellow).
Remember when you were painting in kindergarten and were told that the primary colours were Blue, Red and Yellow? Your teacher lied.
Well, more of a half truth. The primary colours are really Cyan, Magenta and Yellow. But they don't make a nice black, so that is why they put the K (black) into CMYK)
Of course, when you are talking about light emiting primary colours it does become Red, Green and Blue.
This is why CMYK is used in printing and RGB is used on displays. Displays pump out light, they don't reflect light. My mouse pad reflects light, it doesn't have any of its own.
