File FormatsUnits 54Lo1Hashim Pervase

Sources: Initial PowerPoint by Nafisa + Fact Sheets; Wikipedia used for backing information.

Raster Files Known as a bitmap, rasters are grids of pixels,

stored in image files in various formats. Used primarily in photographs, raster files are

good for media compression i.e. video, audio, images.

File extensions include Jpeg (Commonly used for photos), Gifs (Short sequence of images) and Png (set to succeed Gifs).

Software such as adobe, aperture and coral aftershot all use raster files in their imaging.

In My Work Images can also be rasterized, in my magazine

cover, I rasterized text layers so that I could re arrange their positions, as well as merging the layers later within the piece.

As you can see, the clarity of the image has somewhat been lost

In My Work• We see here that upon zoomingThe image may become Slightly, this is because the Image is a raster file

Raster Based Applications Pic Master is a bitmap graphics editor The software uses all the standard editing tools,

as well as extended functions such as displaying anaglyph images, morphing and an integrated webcam support.

A typical raster graphic, upon zooming the image cannot be redefines leaving an unsightly low resolution pixilation.

Vector Files Mathematically based lines, patterns and paths

used to represent images in computer graphics. Can be converted in raster formats if need be. Used in military defense, arcade games and

laser lights. File extensions include CGM (computer

graphics), SVG (scalable) and CDR (specific to coral draw).

Software such as Artboard, Avery and CorelDraw use vectors.

In My Work In my magazine, vector files were used for the

banner I created. It uses linear patterns and paths to create the banner.

Even now with the image enlarged, we still retain that clarity.

Vector Based Applications CorelDraw is a vector graphics editor. Uses a full range of editing tools via multiple

pages and multiple master layers.

A typical Vector file, because of the mathematical patterns and paths the image does not lose any clarity or resolution upon zooming.

The Difference

This image highlights the differences between the Raster (Bitmap) and Vector. The original logo looks identical on both halves, but when zoomed in, the raster file simply becomes more pixelated; there is less clarity and resolution. The Vector however has as much definition zoomed as it did from the further view.

Metafiles A standard file format for vector graphics, raster

graphics and text Textual source files can be compiled into binary files. A file containing information that describes or

specifies another file. The file extension for this is only .cgm Metafiles are used universally; as they simply store

other files of different extensions.

An example of a computer graphics metafile, this is on the cumulus software.

In My Work• Because this cover contains both rasters and vectors it is considered a metafile.•Though it is a PDF file it does meet metafileCriteria•The Image is a raster, and the banner is Vector, this combined makes a metafile.Further examples of Rasters are the variousRasterized text layers, and other images I edited

File extensions Simply a suffix to denote the name of a computer file. This provides the name in short, of the software used

to create a certain file. All software has a file extension meaning file can be

arranged by software if need be. Within my piece, I had used many file extensions,

during paperwork I had .doc, but then I worked on Photoshop which was .psd and then InDesign was .indd.

These are examples of file extensions, prefixing a filename and a dot. – you will have a file and a software.