UNIVERSITY EXAMINATIONS: 2018/2019
EXAMINATION FOR THE DIPLOMA IN INFORMATION
TECHNOLOGY
DIT506 DESKTOP PHOTOGRAPHY & VIDEO EDITING
FULL TIME/PART TIME
DATE: DECEMBER, 2018 TIME: 2 HOURS
INSTRUCTIONS: Answer any THREE questions.
QUESTION ONE
a) Define the term photography (2 Marks)
b) Why is photography considered as an art and science (4 Marks)
c) Distinguish between storyboarding and timelining (8 Marks)
d) How does a pin-hole camera work? (4 Marks)
e) Using runlength coding for binay data, encode the following tex
10000000000010000000001000000011000001 (4 Marks)
f) State the critical factors that determine the quality of a video production as far as
production is concerned. (6 Marks)
QUESTION TWO
a) Explain audio editing (4 Marks)
b) What are the critical success factors in video editing (6 Marks)
c) For outdoor photo shooting, what the precautions necessary for excellent results
(5 Marks)
d) Discuss how a digital camera has revolutionalised photography in the 21st century
(5 Marks)
QUESTION THREE
a) State reasons why data compression is important in multimedia applications such as
video editing (4 Marks)
b) State the challenges in film making (6 Marks)
c) Why should you give credit in video production (4 Marks)
d) What are the activities in video pre-production (6 Marks)
QUESTION FOUR
a) Define a pixel (2 Marks)
b) Camera has a resolution of 5120×4850. If the size of the graphical images created is
53.28MB.
Calculate
i) Pixel count (2 Marks)
ii) Colour depth (3 Marks)
iii) Number of colours that can be displayed (2 Marks)
iv) Aspect ratio (2 Marks)
c) If the storage space is 8GB for the camera in b) and that it can take 307 pictures, what
is the compression ratio for the algorithm used (2 Marks)
d) State Four advantages of using JPEG format over BMP format in photo editing
(4 Marks)
e) Using hz coding, encode the following text
AABBACCABCABCDDDBBAACCFABC (6 Marks)
QUESTION FIVE
a) A digital camera has an aspect ratio of 16:9, capacity of 16GB, colour depth of 4 bits. If
the camera can take 800 still photos, calculate its resolution. (8 Marks)
b) You have been contracted to do a documentary for a new school, what essentials factors
that you have to consider (8 Marks)
c) Compare and contrast the VGA and HDMI cable in video projections on the plasma TV.
(4 Marks)
