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233004
Image File Formats
Description
Mind Map on Image File Formats, created by themisfits on 26/09/2013.
Mind Map by
themisfits
, updated more than 1 year ago
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Created by
themisfits
over 10 years ago
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Resource summary
Image File Formats
JPEG
Uses 24 bit for colours
Maximum of 16.7 million colours
Used for images with continuous colour (e.g. photos)
Uses compression
Transparency
Advantages
Widely supported on the internet
Can be opened and viewed in almost all viewing applications
Compatible with all printers
Disadvantages
When compressed looses quality
Cannot have transparent backgrounds
Doesn't support animation
GIF
Uses 8 bit for colour
Maximum of 256 colours
Uses compression
Used for simple graphics
Uses transparency
Advantages
Most software supports it
Can use transparency
Doesn't loose quality when compressed
Disadvantages
limited amount of colours (265)
Can't correct colour backgrounds on gifs
Takes up a lot of memory space
PNG
Creates compressed images without loosing quality
Uses 16 million Colours
Resulting file sizes are larger than GIF or JPEG
Advantages
when compressed do not loose quality
supports 24-bit colour
Disadvantages
not as small of a file size as JPG images
comes with a number of extension formats
TIFF
Bitmapped image format
Suited to scanned images, images wit continuous colours and photographs
Can be easily modified
Use any number of colours
Advantages
good format to print in
can be used on a variety of platforms e.g. windows and mac OS
Supports different levels of depths from 1-32 bit
Disadvantages
Has large file sizes
no compression is used
cameras cannot save many images in TIFF file format
PSD
Photoshop Documents
Produce very high quality images
No Compression
Large file sizes
Have slow upload and download speeds
Advantages
allows layers
can save significant amounts of information
Disadvantages
very large file sizes because of no compression
only available in Photoshop
difficult to download/upload or email
BMP
Map of pixels
Supports millions of colours
File sizes are very large
Slow download speed
MS Paint files are saved as BMP
Photographs can also be saved as BMP
Advantages
easy to create
can be re-coloured
Well known
Diadvantages
If re-sized can loose quality
requireed high-resolutions
Can only be used on the platform that it is created on e.g. on microsoft
EPS
Standard format for importing and exporting PostScript files.
Can contain text, graphics and images
Contain small preview images
Photoshop can save bitmap images in this file format
Advantages
ideal for importing into graphics software
can be used on a variety of platforms e.g. transferred fro Mac OS to PC
Disadvantages
Large file sizes
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