Unit 1 Selby High School Fireworks

Lesson Objectives• To summarise and explain the difference

between bitmap and vector images• To peer/self assess work

Lesson Outcomes• All students will create a poster which shows

a vector and bitmap image they have made• Most students will include an explanation of

vector and bitmap images• Some students will identify in which

situations bitmap and vector images should be used.

Unit 1 Selby High School Fireworks

Vector & BitmapVector

• Made up of points and curves

Bitmap• Made up of ‘pixels’

Unit 1 Selby High School Fireworks

Bitmap VectorMade up of pixels Made up of lines and curvesWill pixelate when made bigger or smaller

Can be resized without losing quality

Take up more memory Takes up less memory

Unit 1 Selby High School Fireworks

Your task

• Create a poster to go in a classroom to show the difference between bitmap and vector images

• Include advantages and disadvantages of each

• Use your own images as examples

Unit 1 Selby High School FireworksBitmap

Vector

Bitmap Images are made from pixels. Each pixel is a block of colour.

They take up lots of memory and pixelate when you alter them

Vector images are made up of lines and curvesThey don’t take up very much memory and can be resized without changing the qualityClip are is usually a vector image