Representing an image as a series of pixels questions
Q1. Define ‘pixel’.
Q2. When talking about pictures, what is meant by a ‘bitmap’?
Q3. What is a ‘codec’?
Q4. State three types of picture codec.
Q5. How many colours are used in a GIF picture compared to a JPG picture and select a typical use for each type of picture.
Q6. What type of picture file does a scanner take?
Q7. What is meant by 'resolution'?
Q8. What is the colour depth of a picture?
Q9. How do vector images differ to bitmaps?
Q10. Name one drawing application that is free, great fun and uses vector rather than bitmap images?