Understanding Image Data Representation

What does colour depth refer to in digital images?

• The number of pixels in an image

• The number of bits used to represent the colour of a single pixel

• The physical size of the image

• The file size of the image

Which of the following bit depths allows for the most colours in an image?

• 8-bit

• 16-bit

• 24-bit

• 32-bit

What is the primary effect of increasing the resolution of an image?

• The image becomes larger in file size

• The image becomes smaller in file size

• The image becomes more pixelated

• The image becomes less detailed

How is image resolution typically measured?

• Bits per pixel

• Pixels per inch (PPI)

• Inches per pixel

• Bits per inch

What does metadata in an image file typically include?

• The number of colours in the image

• Information about the camera settings and location

• The physical dimensions of the image

• The file size of the image

Which of the following is NOT a common bit depth for images?

• 1-bit

• 8-bit

• 12-bit

• 48-bit

What is the effect of increasing the bit depth of an image?

• The image becomes more pixelated

• The image can display more colours

• The image becomes smaller in file size

• The image resolution decreases

Which of the following resolutions is considered high definition (HD)?

• 640 x 480

• 1280 x 720

• 1920 x 1080

• 3840 x 2160

What is the purpose of metadata in images?

• To increase the image resolution

• To store additional information about the image

• To reduce the file size of the image

• To change the colour depth of the image

Which of the following is a common use of metadata in images?

• To change the image resolution

• To store the date and time the photo was taken

• To increase the number of colours in the image

• To decrease the file size of the image