Higher resolution images contain more detail, which can be measured by pixel count. Raster images are composed of pixels in a grid, while vector images use mathematical relationships between points and paths. Bitmaps are best for photos needing subtle shading, while vectors are more suited to illustrations. Common file formats include JPEG for photos and GIF/PNG for web use, with different compression levels and capabilities. Optimizing images balances file size and quality for different purposes.

2. Image resolution is a term for the amount
of detail an image holds. This term applies
to raster images, vector images, film
images and other types of images. Higher
resolution means more detail and it can
be measured in various ways.
Pixel resolution refers to the pixel count
in digital imaging. To describe pixel
resolution is when pixels are measured in
the first column (width) and second
column (height) for example an images
pixel resolution might be 640 x 420.
Another popular way of citing pixel
resolution is by the number of pixels in an
image.

3. There are two kinds of computer
graphics, raster graphic (which is
composed of pixels) and vector graphic
(which is composed of paths). Raster
images are more commonly known as a
bitmap.
A raster graphic uses a grid of individual
pixels which can be a different shade and
colour. Whereas vector graphics use
mathematical relationships between
points and paths, connecting them to
describe an image.
Bitmaps are best used for photographs
and images with subtle shading and need
a higher resolution than vector art which
is more suited for page layout, type, line
art and illustrations.

4. File format is the specific format in which Format that did not require a patent
an image is save. Each file format has its license. It supports grey scale, palate based
own unique characteristics, advantages images and non-palate based images. PNG
and disadvantages. By defining the file was designed for transferring images onto
format it will be possible to determine the internet and not for high quality print.
how many bits per pixel it can hold and
any other additional information. JPEG (Joint Photographic Experts Groups) is
a lossy compression technique for coloured
• BMP (Bit-map) is the standard raster images which can reduce its file size to 5%
file format for a Microsoft Windows but can lose some detail in the
application compression. It is the most common file
format used by digital camera and other
• GIF (Graphics Interchange Format) is photographic capture devices.
another bit-mapped graphics file
format which is used by the internet
and online message servers. GIFs
support colours and various
resolutions and also includes data
compression.
• PNG (Portable Network Graphics) is a
bit-mapped graphic that was originally
made to replace the GIF as an image
file

5. • Tiff (Tagged Image File Format) is a file • AI (Adobe Illustrator File) is a file
format for storing images and is extension for a vector graphic file
popular among graphic artists. format used in Adobe Illustrator a
Originally run by a company called popular vector at application.
Aldus it is now under control of Adobe
Systems. It is widely supported by • EPS (Encapsulated Postscript File) is a
image manipulation applications. graphic file format for exchanging
images, drawings or even whole page
• PSD (Adobe Photoshop File) an image layouts. An EPS file holds internally a
file created by Adobe Photoshop, a description of such an object using the
popular image-manipulation program. Postscript page description language.
It may include image layers,
adjustment layers, file information, key
information and other Photoshop
elements.
• PDF (Portable Document Format) is a
file format created by Adobe systems
and is now an open standard for
electronic document exchange. When
you covert documents, forms and
graphics they look just like they would
if printed but can also add interactive
buttons, shields, audio and video.

6. File compression often comes in the form
of a zip file. This compression system is
very hand as it lets you reduce the overall
bits and bites in a file. This is so it can be
transferred over the web quicker or take
up less space on a disk.
Image compression is essentially
minimizing the size in bytes of a graphics
file without affecting the quality of the
image to a unacceptable level. As
previously mentioned in the slides
beforehand two most common
compression graphic image formats are
the JPEG and GIF format. When a text file
or program can be compressed without
the induction of errors up to a certain
point is called a lossless compression. A
single error can cause a lot of damage to
the meaning of a file usually a small loss
can be quite noticeable.

7. Image capture devices are devices such as
cameras and scanners that take an image
and pixelate it so it can then be
manipulated in computer program
software's.
They share the same technology and
takes light and focuses it via the lense
onto the sensor made of silicon it is
made up of tiny photisites that are
sensitive to light. A photosite is usually
called a pixel and there are millions of
these in the sensor light.
Unfortunately photisites are colour blind
And can only display the intensity of the
light that hits its surface. In order to get a
full colour image the sensor has to use a
filter to look at the lights in its three
primary colours. I combines them to
create the full spectrum.

8. Image optimizing is using the most
compressed yet visually acceptable image
in the correct file format for the correct
purpose.
Jpeg optimization is a lossy form of
compression as the image information is Un-optimized Image
degraded or lost. Jpeg compression is
expressed in terms of percentage so a
100% is at it’s highest quality while lowest
percentage loses tonal information and
image detail.
GIF works by mapping the image to colour
palette. The maximum number of colours Optimized Image
available is 256 to 216 this is a small
number of colours but it adds to the fact
that GIF is a lossless compression file as
relatively speaking with already a small
number of colours compression doesn’t
cause to much loss of image information.

9. You can store media files in many
different places the most common being
the internal hardrive of the computer but
can also be stored in a company network A personal example is when I created
drive, a pen drive for carrying files over to some arcade machines in Lightwave
a computer not part of a network or an modeller then took them over to layout I
external hard drive which usually has a lot needed to make sure that all the
more memory then a pen drive. A new customized surfaces I had created for
and very popular way of storing now is by them were in the same folder as the
cloud or skydrive. project otherwise they would have not
showed up on the arcade machine leaving
Managing your assets are very important them in blank colours
in professional settings so your media is
well organized by appropriate name and
date as well as the appropriate media file
if needed to be passed on to another
colleague. In terms of using a software
such as Adobe Premiere or Lightwave
Layout files are linked to a project so
therefore need to be kept in an organized
Folder otherwise assets in a project could
go missing or might not be updated.

10. chilton-computing.org.uk – Background Graphic
prepressure.com – Pixelated Image (Slide 1)
en-wikipedia.org – Resolution Information, pixel resolution image (Slide 2)
adobe.com – Flower resolution image (Slide 2)
sketchpad.net – Vector and Raster Information (Slide 3)
woodprintingservice.com – Deer Raster and Vector Image (Slide 3)
webopedia.com – GIF and JPEG Information (Slide 4)
why-not.com – File Formats Information (Slide 4)
en-wikipedia.org – PNG, TIFF Information (Slide 4,5 )
fileinfo.com – PSD Information (Slide 5)
adobe.com – PDF Information (Slide 5)
whatis.techtarget.com – AI information (Slide 5)
prepressure.com – EPS Information (Slide 5)
computer.howstuffworks.com – Zip File Compression Information (Slide 6)
searchcio-midmarket.techtarget.com – Image File Compression Information (Slide 6)
nchsoftware.blogspot.com – File Compression Image (Slide 6)
techlocation.com – Scanner Image (Slide 7)
transcribe.co.uk – Digital Camera Image (Slide 7)
nigelbuckner.com – Optimizing Information (Slide 8)
ebrueggeman.com – Optimized and Un-optimized Image (Slide 8)