Digital Images

Which of the following options are an example of a Binary Number?

• 1234567

• ABCD
• 1010
• 1018080

How many Bits make up a Byte?

• 4
• 8
• 16
• 32

What is a Pixel?

• A type of digital camera
• A brand of computer
• The smallest unit of a digital image
• A type of software

What is meant by the term resolution in relation to digital images, video and digital displays/screens?

• The number of pixels in an image or display
• The size of the digital image or display
• The color depth of the digital image or display
• The brightness of the digital image or display

Which of the following is the minimum resolution for a High Definition or HD display?

• 720 x 480 pixels
• 1280 x 720 pixels
• 800 x 600 pixels
• 1024 x 768 pixels

What is one disadvantage of using High Resolution images?

• They take up less storage space
• They load faster on websites
• They are easier to edit
• They can significantly increase load times

Which three colours can be mixed to create any possible colour in a digital image or digital display?

• Red, Green, Blue
• Red, Yellow, Blue
• Black, White, Grey
• Cyan, Magenta, Yellow

What is the relationship between the amount of bits used to store colour data in a digital image and the amount of colours that can be generated?

• The more bits used, the fewer colours can be generated
• The more bits used, the more colours can be generated
• The amount of bits used has no effect on the amount of colours that can be generated
• The amount of bits used inversely affects the amount of colours that can be generated

Which of the images below show an example of low colour depth?

• 
• 

What are the differences between Vector and Raster image types? Choose all that apply

• Vector images are made of pixels while Raster images are made of paths
• Raster images are resolution dependent while Vector images are not
• Vector images can be scaled without loss of quality while Raster images cannot
• Raster images are made of pixels while Vector images are made of paths