File types pro forma (3)

Digital Graphics File Formats

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Raster Graphics

• Give a definition of Raster Graphics

Raster graphics is images imported from the internet or for example or if you scan a picture onto your computer that’s raster graphics. Raster file can sometimes be referred to as abitmap because it contains information that is directly mapped to the display grid. A raster file is also larger than a vector file.

Vector Graphics

• Give a definition of Vector Graphics

Vector graphics are images imported from the internet but they don’t lose their definition. Unlike Raster graphics, no matter how many times you open the vector file it will not lose it’s loss. They also have a start and an end point and they are made out of vectors/paths which means they are perfect for business cards because no matter what size the file it, the definition will not be lost.

Raster Graphics

JPEGStands For Joint Photographic Experts Group

Used For/Example Copying images from facebook, internet, twitter etc.

Advantage -Easy to upload and see.-A JPEG file only takes up a small space. -JPEG is also supported by every single digital camera and any video camcorder that can also take pictures.

Disadvantage -Loses the quality once the picture is edited.

TIFFStands For Tagged Image File Format

Used For/Example If you want to transfer pictures from a camera to your computer so you can edit them, you can save them as tiffs then you can easily access them through Photoshop.

Advantage -You can create as many files as you want. E.g. you could plan a whole book. -The file never loses the quality -Easy to edit.

Disadvantage -Tiffs are not read by most devices.-Most devices wont open a Tiff file.

GIFStands For Graphic Interchange Format

Used For/Example To create a very short digital animation, usually on websites like Tumblr.

Advantage -Not difficult at all-A GIF file is a lot smaller than a normal video-Its also easier to upload a GIF than Video.

Disadvantage -they only have up to 256 colour palette of which can sometimes mean the gifs will have a poorer quality than other types of files.-Once the GIF is created you cant go back and edit it.

BMPStands For Bitmap Image File

Used For/Example Bitmap is a raster image format used to store and display colour and grayscale images.

Advantage -Bitmap files may be easily created from existing data.-Bitmap files may translate well to dot-format output devices such as printers.

Disadvantage -BMP files cannot be used for transferring images from the Internet or other slow or capacity-limited such as twitter or any other website/media because they are too large.

Vector Graphics

PSDStands For Photoshop Document

Used For/Example Usually used to create the front cover of a magazine.

Advantage -PSD files can handle simple vector layerswhich makes them more suitable for importing and exporting data from programs like Adobe Illustrator.-PSD works well to store large detailed images for printing or editing, including images with layers.

Disadvantage -Not many devices can open a PSD file.-PSD are harder to difficult to email.-The internet cant read any PSD files. -Usually PSD files are only recognised by Photoshop software which wont be much help if you were doing a full cover for a magazine.

AIStands For Adobe Illustrator

Used For/Example Used to create logos to represent a company.

Advantage -Can be shrunk or enlarged to what ever size due to how the vectors don’t lose definition. -lossless of quality no matter how big the art gets or how small.

Disadvantage -Transparency can be complicated if you don't practice

FLAStands For Flash File

Used For/Example Used to create animation and games.

Advantage -Can include sound and video.-Can produce high quality files with a small file size.-The animation is so visual, so viewers will quite often get the gist of your message without having to read any written content.

Disadvantage -

WMFStands For Windows Metafile

Used For/Example WMF is similar to AL files, they are used for logos as well.

Advantage -Can be scaled to any size.-Can contain both vectors and bitmaps components.-Metafiles can be resized easily which normally accompanies resizing of bitmaps.

Disadvantage -Nothing can be read from a metafile. Functions such as Draw Text, Get Text Metrics, Get Text Extent and others cannot work with metafiles.-The Bitmaps used in metafiles will suffer all the disadvantages of resized bitmaps when the metafile which contains these bitmaps get resized.

File Format Capture and Optimising

CompressionDefinition The goal of compression is to reduce file

size and save disk space.

Advantage -When a file is compressed, it takes up so much less disk space than the uncompressed version and therefor it can be transferred to other systems quicker. -If your computer is running low on data space, then compressing your files is the best thing to do.

Disadvantage -The resulting file may be larger if you had used a lossy compression format to start with. -It can be complicated to use-It needs to compress all the previous and it can crash.

Image CaptureMethod Scanner

How is it used for image capture of graphics

A scanner is able to scan and capture text, imagery and objects and then turn them into a digital image which can be transferred onto your computer.

Method Camera

How is it used for image capture of graphics

Digital Cameras are capable of image capture, a camera is more transportable due down to the fact that a Digital Camera is able to capture images of everyday life compared to the Scanner which requires invariably a flat document. Cameras also capture the image and then present the image straight away on the camera

Method Graphics Tablet

How is it used for image capture of graphics

Graphic tablets may also be used to capture images or handwritten signatures. The image then gets displayed on the computer monitor the tablet is connected to.

OptimisingWhy would you optimise? To make an image clearer and

compressed.

How can you optimise? You can resize, compress and optimise your image files through online websites such www.imageoptimizer.net/ or through other programmes such RIOT.

Advantage to optimising -Its easy to optimise an image.-You can make your file as small as possible. -You can compare the original image with the optimized image.

Disadvantage to optimising -If your browser resize a large image to look smaller it will lose all the decent quality.