1. File Formats
Units 54
Lo1
Hashim Pervase
Sources: Initial
PowerPoint by Nafisa +
Fact Sheets; Wikipedia
used for backing
information.

2. 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.

3. 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

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

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. 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.

11. 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 metafile
Criteria
•The Image is a raster, and the banner is
Vector, this combined makes a metafile.
Further examples of Rasters are the various
Rasterized text layers, and other images I
edited

12. 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.