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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
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Learning activities Making colors Finding colors Changing colors
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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
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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
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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)
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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
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Changing colors Go to http://www.colorcube.com/play/assist/assist.htm
Change the colors in different parts of the picture
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What’s the use?
Radiolucent(Dark= small numbers)
Radiodense(Bright= Large numbers)
Film region
Risk factor for developing breast cancer
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What’s the use?
Radiolucent(Black = 0)
Radiodense(White = 255)
Film region
Risk factor for developing breast cancer