Re: mix 2 bitmaps

hello Rolf,
as u know colors are from red blue and green, a grayscale color has=20
got the same value of these 3 colors. for example 200,200,200 is a=20
silver (grayscale) color but 200,200,199 is not. I think you should=20
use this method for your filter:
get each color value from the greyscale picture and the colored=20
picture, add them up then div 2 (Average).
think, the silver color is 666666 and the rgb color is 3F8F3D, you=20
see 3F is 63 and 8F is 143 and 3D is 61 in dec.
( 66 + 63 ) / 2 =3D 64 -> 40 in hex
( 66 + 143) / 2 =3D 104 -> 68 in hex
( 66 + 61 ) / 2 =3D 63 -> 3F in hex
so the mixed color is 40683F. well 666666 is a dark gray and 3F8F3D=20
is a green and the result is a dark green! there are 255 colors in=20
grayscale mode, one is white one is black and 223 colors are silver.

Joy,

Comboy.

> Hi
> What I want to do is transfer color from a color image to a=20
greyscale=20
> image. There is a paper called "Transferring Color to Greyscale=20
> Images" and I want to make a program that uses this paper.
> The user gives a color image and a greyscale image and the program=20
> transferes colors from the color image to the greyscale...
> It=B4s eazy to find the paper in google...
> Could you help me?
> thank you
> Rolf



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