1. Lecture 24: Color Announcements & Review Lab 7 Due Thursday 2 D arrays - embedding graphs in an array Computer Science Artifacts Abstraction Representations Algorithms sort, search, etc.

2. Lecture 24: Color Color Biology - what you see Subtractive primary colors –making colors from others on paper or mixing paint Additive primary colors –making colors from others on your computer or TV

3. Lecture 24: Color Subtractive Color Mixing In printing and painting RYB - Red Yellow Blue –The RYB model combines Red Yellow Blue to create other colors. –Mixing paints is an absorptive or subtraction process CMYB - Cyan Magenta Yellow Black

4. Lecture 24: Color Additive Color Mixing Screens - TV, computer, cell phone RGB - Red Green Blue –The RGB additive light model combines Red Green Blue to create other colors. –RGB are the three primary colors in additive light models. –The specific shades are unspecified (and devices implement them differently). –http://mc2.cchem.berkeley.edu/Java/RGB/exa mple1.htmlhttp://mc2.cchem.berkeley.edu/Java/RGB/exa mple1.html

5. Lecture 24: Color Colors in Java Color constructor: Color(int r, int g, int b) –Each of these integers are between 0 and 255 Color myColor = new Color(100, 140, 180); int red = myColor.getRed(); int RGBvalue = myColor.getRGB(); http://java.sun.com/j2se/1.3/docs/api/java/ awt/Color.html

6. Lecture 24: Color Java Examples in BlueJ Images as 2D arrays Playing with colors

7. Lecture 24: Color More Questions?