| As we learned in the last lesson, turning on or off monitor pixels in
graphics mode can create an alpha numeric character.
Obviously the same process can be also be used to create a picture.
In the above representation of an upper case A and in the below picture
of an eye we've used only white and black (on and off).
In the below example we've added two shades of gray, two shade of blue to
the original black and white.
There are dozens of computer color mixing systems and an endless number
of custom palettes. Essentially however, all computer colors are created by
mixing red green and blue. Typically pallets are calculated using 255 parts
as the maximum amount of any one color thus 255 parts of of all three colors
creates white while no parts of any of the primary colors produces black.
Below is an example of some of the palettes available to you.
In the below example we mixed our own custom gold with 255 parts red, 211
parts green and 101 parts blue.
The number of colors that you can display, paint with or print with
depends upon the capablity of your video card.
To get true photo-realistic images you need 32 bit capabilities.
- If you know all about graphics skip the Exercises
and go to the Next lesson.
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