Pixels, Raster + Vector graphics

 Pixels

- Short for Picture element
- Smallest possible component of a digital image
- Each pixel has positional information and intensity information

Intensity Information - the intensity of the colour within the pixel (RBG or CMYK)

Resolution - Number of pixels within a given area

 

Raster Graphics

Example of enlarging a raster graphic

- Made up of pixels
- Also known as bitmap graphics
- Cannot scale up without loss of quality
- Good for photographs
- Larger file size than a vector graphic
- Used extensivley on the internet

Logo produced using Vector Graphics

Vector Graphics

- Based on instructions
- Smaller file size than Raster
- Made up of curves/vectors
- Used for logos/fonts
- Used for illustration
- No Loss of quality if enlarged, regardless of how big








Vector Vs Raster