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RGB Color Model: Combining Red, Green, and Blue to Create Colors

Learn about the RGB color model and how combining red, green, and blue light generates colors. Explore its applications in internet skills, technology, and content creation. Understand how intensities of each color ranging from 0 to 255 can create a wide spectrum of colors. Dive into RGB demonstration services and projects like large displays, coffee cup pixels, and high-resolution images. Discover how different color possibilities emerge from this model and test your understanding with practical examples and questions.

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RGB Color Model: Combining Red, Green, and Blue to Create Colors

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  1. RGB color model Skills: none IT concepts: combining red, green and blue light to generate colors This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

  2. Where does this topic fit? • Internet concepts • Applications • Technology • Implications • Internet skills • Application development • Content creation (images)

  3. red + blue + green → white

  4. Combine three colors for each pixel Intensities of each color can range from 0 - 255

  5. A few examples

  6. Use decimal or hexadecimal

  7. A few examples

  8. RGB demonstration service

  9. A large RGB display Millennium Park, Chicago

  10. Coffee cup pixels

  11. A very large image Zoom and pan for detail 297,500 x 87,500 pixels (26 gigapixels)

  12. A few questions How many different colors are possible using the RGB model? What colors are the background and text on a page with this body tag: <body bgcolor = "#ffffff" text = "#000000" > What happens if you change the values of the bgcolor and text attributes?

  13. RGB color model Skills: none IT concepts: combining red, green and blue light to generate colors This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

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