Data Representation- Images

What do we call the smallest unit of data that can be represented in an image?

• pixel

• dot

• colour

• bit

What is meant by Colour Depth?

• Number of pixels in the image

• The number of colours available for each pixel

• How pixellated the image is

If you increase the colour depth then the file size will decrease?

• TRUE

• FALSE

How many colours can be represented with a 4 bit colour depth?

• 2

• 4

• 16

• 256

What is the term used to define what must be known about a bitmap, for it to be represented accurately?

• Microdata

• Metadata

• Megadata

In modern technology what unit of measurement would be used for screen size?

• Pixels per inch

• Dots per inch

Which of the following is not stored as metadata about an image?

• Height

• Colour Depth

• Resolution

• Number of people in the image

Which of the following is not an image file?

• PNG

• JPEG

• BMP

• MPEG

What three colours are used to produce a broad array of colours in a computer system?

• Green, Red, Orange

• Red, Green, Blue

• Yellow, Green, Red

What is the name of the type of graphic that uses shapes of solid colour?

• Raster

• GIF

• JPEG

• Vector