Y9: Representations: L4 DO NOW

What is the colour depth of this image?

• 7

• 8

• 3

• 24

How many binary digits does it take to represent this image?

• 3

• 90

• 270

• 630

If this image uses ‘RGB colour’, then how many bits are used to represent the colour of each pixel?

• 3

• 8

• 24

• Over 16 million

The resolution of this image is 600⨉400. This means that:

• It consists of 600 pixels and has 400 colours

• It consists of 240,000 pixels

• It requires 240,000 bits to be represented

• It requires 240,000 bytes to be represented

Select the definition that you find most appropriate for the resolution of an image

• How ‘sharp’ the image is

• How many pixels the image consists of

• How many different colours there are in the image

• How many binary digits are used to represent the colour of each pixel

• How many binary digits are used to represent the image

Select the definition that you find most appropriate for the colour depth of an image

• How ‘sharp’ the image is

• How many pixels the image consists of

• How many different colours there are in the image

• How many binary digits are used to represent the colour of each pixel

• How many binary digits are used to represent the image

Between two images, the one with the greater resolution...

• Will be ‘sharper’, i.e. more detailed

• Will have more colours

• Will be larger in size, i.e. require more bits to be represented

Between two images, the one with the greater colour depth...

• Will be ‘sharper’, i.e. more detailed

• Will have more colours

• Will be larger in size, i.e. require more bits to be represented

When printing photographs on paper, would it be better to use images with a low or high resolution?

• Low

• High

When keeping an archive of images on a storage device with limited capacity, would it be better to use images with a low or high resolution?

• Low

• High