How digital cameras work and the privacy concerns

1. DIGITAL CAMERAS AND
PRIVACY CONCERNS
By Payal and Shilpa

2. HOW DO DIGITAL
CAMERAS WORK?
 In a digital cameras, they contain a built in computer which
captures the images that are taken electronically.
 It has a series of lenses that focus light to create an image of the
scene.

3.  The light then focuses on an object called the Semi-conductor,
which takes in the light electronically
 In a digital camera, it contains a sensor which changes the light
into electrical charges

4. HOW DO DIGITAL CAMERAS
CAPTURE COLOUR ?
 There are several ways to capture the colours of the picture and
one of them include:
 Colour filtering:
 A more practical way to record the primary colors is to
permanently place a filter called a color filter array over each
individual photosite

5.  By breaking up the sensors into 3 different colours: Red, blue and
Green, it allows the camera to make a an almost accurate guess as to
what the real colours are.

6. PRIVACY CONCERNS FOR
INDIVIDUALS
 Privacy is about protecting an individual’s personal information.
 NPP1: collection- deals with the collection of any personal
information
 NPP10: Sensitive information –deals with the collection of
sensitive information of an individual such as medical records,
criminal records etc

7. PRACTICAL GUIDELINES
ORGANISATIONS TO
CONSIDER TO COMPLY WITH
NPP1 AND NPP10...
 Collection must be necessary. The data must be necessary for the
organisation to carry out one of its functions.
 Collection must be fair, this means that the individuals need to
be informed that the collection is occurring.

8.  Individuals need to be informed about the purpose of data collection. Such as any legal
obligations as well as any possible consequences of not providing personal detail.
 Personal details should always be collected directly from the individual, so they have a
clear understanding of what's going on and who holds their personal details.

9.  Sensitive information must not be collected without individual
giving their special consent. The reasons for collecting sensitive
information must also be made clear to the individual.

10.  Thanks for watching!!! 