Human-Computer Interaction 3e Dix, Finlay, Abowd, Beale

exercises  -  21. hypertext, multimedia and the world-wide web

EXERCISE 21.4

Using a graphics package such as Adobe Photoshop or Macromedia Fireworks, save different types of image (photographs, line drawings, text) in different formats (GIF, JPEG, PNG). Compare the file sizes of the different formats, experimenting with different compression ratios (where applicable), numbers of colours, etc.

answer

open-ended investigation


Other exercises in this chapter

ex.21.1 (ans), ex.21.2 (ans), ex.21.3 (ans), ex.21.4 (ans)

all exercises for this chapter


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