Exercise 5 Question 3

1) Discuss the following with the class and post the answers on your blog :-

a) Explain the difference in the sizes of the two tiff files in steps 1) and 2).

1 has no compression but 2 has discarded information through compression.

b) When saving a jpeg file what two things change when you select a different quality factor ?

File size and quality.

c) What is ‘dithering’ and why is it used ?

Dithering is the attempt by a computer program to approximate a colour from a mixture of other
colours when the required colour is not available.

d) Explain the difference in size between the greyscale tiff file and the original tiff file.

Greyscale only has 1 channel so is 1/3 the size.

Exercise 01 - Image Uses

1.       Areas of Photography

Fashion Photography

Glamour Photography

Advertising Photography

Still Life Photography

Wedding Photography

Fine Art Photography

Nature Photography

·         Landscape Photography

·         Wildlife Photography

·         Underwater Photography

·         Seascape Photography

·         Cloudscape Photography

Travel Photography

Architectural Photography

Portrait Photography

Photojournalism

·         Documentary Photography

·         Street Photography

·         Celebrity Photography

·         Sports Photography

Nude Photography

War Photography

Candid Photography

Fire Photography

Forensic Photography

Secret Photography

Macro Photography

Aerial Photography

Headshot Photography

Food Photography

Astro Photography

Child Photography

Black and White Photography

Digital Photography

Night Photography

Source: http://www.buzzle.com/articles/types-of-photography.html

2.       End Uses of Images

Type of Photography	Employer/Client	Use/Display Images	Size/Quality of Image
Forensic Photography	Police, Lawyers, Accident Investigators, Courts, Coroner	Courts, Reports, Photographic prints, Computer/Tablet	Up to A3, high quality Screen size, low-med quality
Astro Photography	Research Organisations, Astronomers, Astronomy Magazines/Clubs	Photographic prints, Internet, Books, Magazines	Up to A3, very high quality Screen size – low to medium quality Offset printing – low to very high quality
Documentary	Newspapers, Magazines, TV Media, Organisations, Documentary film producers	Photographic prints, Internet, Books, Magazines, TV/film	Full page or double page spreads – high quality  Screen size low to medium quality Video specific size – medium to high quality