Colors & Numbers1234567890123456

7890123

Shreekanth Mandayam, Gina Tang, Scott Papson, Dan Barrot, Joe Oagaro and Rick

EckertElectrical & Computer Engineering

Rowan UniversityGlassboro, NJ 08028

July 9, 2003

Learning activities Making colors Finding colors Changing colors

How do they get all those colors?

All shades of color that you see on a computer screen are made up by adding 3 primary colors

GR B

Colors = Numbers

The amount of each primary color in a shade = a Number!!!

G= 0to 255

R= 0 to 255

B= 0to 255

“Redness” “Greenness” “Blueness”

0 = No red255 = Bright red

0 = No green255 = Bright green

0 = No blue255 = Bright blue

How many shades of color? Go to http://www.ringthis.com/java/colortest/ and create your own shade of color. Experiment!

How many shades of color can you create using 3 numbers for each shade? (an R-number, a G-number and a B-number)

Finding colors Get pictures using a digital camera

or scanner into the computer Find the amount of redness,

greenness and blueness in each picture

ColorCube ColorAnalyzer

Changing colors Go to http://www.colorcube.com/play/assist/assist.htm

Change the colors in different parts of the picture

What’s the use?

Radiolucent(Dark= small numbers)

Radiodense(Bright= Large numbers)

Film region

Risk factor for developing breast cancer

What’s the use?

Radiolucent(Black = 0)

Radiodense(White = 255)

Film region

Risk factor for developing breast cancer