Podcast
Questions and Answers
Which type of graphics is resolution dependent?
Which type of graphics is resolution dependent?
What color is often associated with royalty and luxury?
What color is often associated with royalty and luxury?
Which type of graphics is best for cartoon-like images?
Which type of graphics is best for cartoon-like images?
What color represents joy, positive energy, and zest?
What color represents joy, positive energy, and zest?
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What color symbolizes elegance and uncertainty?
What color symbolizes elegance and uncertainty?
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Which graphic format cannot be scaled without losing quality?
Which graphic format cannot be scaled without losing quality?
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What is the basic unit used to represent an image digitally?
What is the basic unit used to represent an image digitally?
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How many unique colors can a 24-bit color depth display represent?
How many unique colors can a 24-bit color depth display represent?
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Which of the following is not a primary color in the RGB color model?
Which of the following is not a primary color in the RGB color model?
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Which color theory term refers to the purity of a color?
Which color theory term refers to the purity of a color?
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Which color theory term refers to how light or dark a color is?
Which color theory term refers to how light or dark a color is?
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What color scheme uses colors that are adjacent to each other on the color wheel?
What color scheme uses colors that are adjacent to each other on the color wheel?
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Which color palette is best for creating images and texts with consistent focus on content?
Which color palette is best for creating images and texts with consistent focus on content?
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What type of color palette consists of the same hue in different shades and tones?
What type of color palette consists of the same hue in different shades and tones?
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What type of color palette consists of opposite colors in the color wheel?
What type of color palette consists of opposite colors in the color wheel?
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Which color palette is made from three colors at equidistant points on the color wheel?
Which color palette is made from three colors at equidistant points on the color wheel?
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Which type of color palette is ideal for product packaging or logo designing?
Which type of color palette is ideal for product packaging or logo designing?
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How many colors does a triadic color palette consist of?
How many colors does a triadic color palette consist of?
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Study Notes
Image Representation
- An image is divided into small areas called pixels (picture elements) to translate it into numbers.
- Each pixel has a particular color, with modern computers able to show up to 16.7 million different colors.
Color Representation
- Colors are represented as a combination of three primary colors: red, green, and blue (RGB color model).
- Color depth refers to the total number of colors a screen can render, measured in bits.
- Different color depths include:
- 3bit: 8 colors
- 8bit: 256 colors
- 24bit: 16.78 million colors
Color Theory
- The color wheel consists of primary colors, secondary colors, and a full color wheel.
- Color schemes include:
- Monochromatic
- Analogous
- Complementary
- Split-complementary
- Triadic
- Tetradic
Color Terminologies
- Hue: the color of an object
- Saturation: the strength or weakness of a color
- Chroma: the purity of a color
- Shade: created by adding black to a pure hue
- Tone: created by adding grey to refine a color
- Value: shows how light or dark a hue is
Color Meanings
- Yellow: joy, positive energy, zest
- Black: mystery, power, grace, mature
- Blue: serene, confident, tranquility
- Red: passion, energy, power
- Green: freshness, growth, natural, safety
- White: purity, cleanliness, perfection, sophisticated
- Purple: royalty, luxurious, creative
- Pink: feminine, safe, delightful
- Orange: creativity, intelligence, initiative, enthusiasm
- Grey: elegance, uncertainty
Raster vs Vector Graphics
- Raster graphics:
- Made up of pixels
- Resolution dependent
- Cannot be scaled without losing quality
- Best for photo-realistic elements
- File formats: BMP, GIF, JPEG, PNG
- Vector graphics:
- Composed of geometric primitives and mathematical equations
- Resolution independent
- Can be scaled to any size without losing quality
- Best for cartoon-like images and 3D modeling
- File formats: Flash, Scalable Vector Graphics (SVG), CDR (CorelDraw), AI (Adobe Illustrator)
Vector Graphics
- Based on mathematical formulas
- Can be easily edited and modified
- Smaller file sizes than raster graphics
- Used for logos, illustrations, and precise shapes and lines
Color Palettes
- Monochromatic: same hue in different shades and tones
- Analogous: consistent images and texts with different shades of the same hue
- Complementary: opposite colors in the color wheel (e.g. red and green)
- Triadic: three colors at equidistant points in the color wheel (e.g. red, yellow, and blue)
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Description
Learn how images are represented using pixels and colors. Discover how modern computers display millions of colors using the RGB color model. Explore the concept of color depth and color width in image representation.
