Overview
This lecture explains the differences between vector graphics and raster graphics, highlighting their structures, uses, and file types.
Vector Graphics
- Vector images are created using points, lines, curves, and shapes defined by mathematical equations.
- They remain crisp and clear at any size because the elements are recalculated when scaled.
- Vector images usually have smaller file sizes due to storing instructions, not actual pixels.
- Vectors are ideal for designs like logos and signage that require resizing without loss of quality.
Raster Graphics
- Raster images are made up of tiny units called pixels that form the complete picture.
- When zoomed in, raster images become grainy and lose clarity due to visible pixels.
- Higher pixel counts in raster images allow for more detail, but also increase file size.
- Raster graphics are suited for detailed and realistic images, like photographs and digital paintings.
File Types
- Common vector file types: SVG, AI, EPS.
- Common raster file types: JPEG, PNG, GIF.
Key Terms & Definitions
- Vector Graphics — Images constructed from mathematical formulas using points, lines, and shapes.
- Raster Graphics — Images built from a grid of colored pixels.
- Pixel — The smallest individual part of a raster image, like a digital dot.
Action Items / Next Steps
- Review examples of vector and raster images for visual comparison.
- Identify and list file types used in your own digital projects.