This document discusses different types of digital images, including vector and bitmap images. Vector images are composed of mathematical representations of points, lines and curves, allowing them to be scaled without quality loss. Bitmap images are made up of pixels and can lose quality when scaled. Key factors that impact image quality are compression, which can result in data loss, and resolution, which determines pixel size. Images can be captured digitally through drawing, photography, or scanning and are stored as either vectors or bitmaps depending on the method. Proper file organization and naming is important for project management and collaboration.

1. RAGWANA AKRAM12C
ASSIGNMENT 1
DIGITAL IMAGES:
Digital images are two kinds of images these are
1. Vector
2. 2. Bitmap (Raster)
VECTOR:
Vector images are made of points, lines and curves. This means that the
image is built and displayed through mathematical ways.
It could also be scaled and will still not lose any quality or clearness of the
image.
Resolution (independent) – can be printed at any resolution.
Common file formats: .ai, .cdr, .ps, .pds
Common vector graphic programmes: Adobe illustrator, CorelDraw,
FreeHand
Common uses of vector graphics: Drawing, illustrations, cartoons
BITMAP (RASTER)
Bitmap is made up of pixels.
The resolution of the bitmap can be scaled up without losing any quality.
Common bitmap files that are used: .jp, .jpeg, .gif, .png, .tif, .tff, .bmp
Bitmap images are Photographs and paintings.

2. RAGWANA AKRAM12C
PIXEL
The smallest part of a bitmap image is that a pixel will have a single colour
or only one of the primary colours. If you zoom in far enough, or scale a
bitmap image up, you can see its pixels.
Each pixel on a screen emits Red, Green and Blue light. By changing the
levels of each colour (Red, Green, Blue) your screen is able to produce every
possible colour.
Factors which impact image quality are compression which means that when
you reduce the size of a file it becomes easier to send to someone and by
compressing the image you could lose data which then means that you will
lose its quality.
Resolution is the size of an image. It is how many pixels tall, wide, an image
is and the higher the resolution, the better the quality you will have.
However, this means that the larger the image the bad the resolution will be
which means that resolution only applies to bitmap images.
IMAGE CAPTURING is when an image has been drawn. This image is cannot
be resized without losing its quality. Secondly, digitally drawing an image
into a computer with a sketchpad and stylus which can be resized, this is
then drawn as a vector image. Thirdly, using a digital camera simply just
takes a photo which is then saved on to a PC or laptop digitally. Which is
then stored as a bitmap image, so it will be able to lose quality if it is
resized.
OUTPUT
Outputs are when an image is outputted. Often determines the kind of an
image it needs to be.
Outputs: prints (paper), screen & online.
Print: printing uses the CYMK pallet (Cyan, Yellow, Magenta, and Black)

3. RAGWANA AKRAM12C
Screen: use pixels to display and image, so uses the RGB colour pallet (Red,
Green, Blue)
STORAGE
Storage determines whether how big or small storage is and if there are any
spaces left for another file to fit in.
File size: is when the larger an image is, or the higher its resolution, the
larger the file is which means that it will be harder to email, takes longer
time to download and it also takes up more space in a computer’s memory.
Naming conventions: It is important to save work with suitable names so
you, or others, can locate them. If you are working on a large project as part
of your team your files must be organised and named appropriately or you
will lose everything, and you will also need to back up any work on a cloud
or in an USB stick.
Asset management: when working on a project, or any work, it is important
to keep files organised. It saves work as it has suitable names and that it is
put into correct folders. It also means that others are able to use and access
your work, and that you are able to access theirs properly.