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Scale

This graphics operation can increase or decrease the size of an image by ENLARGING or REDUCING

Crop

this graphics operation can be used to remove part of an image by trimming the horizontal or vertical edge

Rotate

this graphics operation can turn an image through an angle

Flip

This reflects a graphic on an axis of symmetry such as Vertically or Horizontally

What is a Graphics package

A GPP used to produce pictures

Name 2 types of graphic software

painting
Drawing

what are graphics made up of?

Tiny dots called pixels which comes form the words
Picture Element

High Resolution graphics

made up from a large number of small pixels
Gives good quality graphics with loads of detail

Low resolution graphics

made up from a small number of pixels
Gives poor quality graphics with little detail

How do Painting graphics work

Store the graphic by storing a code for the colour of each pixel that makes up the graphic

Name 3 tools in a painting package that allow the individual pixels to be changed

pen
rubber
airbrush

How do drawing graphics work

Store the graphics as a list of objects ( shapes) that make up the graphic

What are ATTRIBUTES of a drawing object

Features which can be altered such as line thickness, line color, fill colour

What is ANIMATION

apparent movement acheived by showing a sequence of still frames

Where is animation used

in video games, screen savers

Scanner

A devise that digitizes graphics so that they can be stored and edited on a computer

Name two factors that affect the quality of and image

resolution
bit depth

How is resolution measured

dpi = dots per square inch
Resolution is a measure of how many pixels there are in an image

What is a depth bit an indicator od

How many colurs can be represented

How many colours does a 24 bit scanner have
32 bit

over 16 million
over 4 billion

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