6. Color depth and binary representation

Multiple Choice

What are the basic colours that make up a pixel?

• Red, Orange, Yellow

• Red, Blue, Green

• Yellow, Orange, Purple

• Red, Blue, Purple

Labelling

Drag each label to the correct reference on the image.

Drag labels to their correct position on the image

bit

byte

nibble

binary

Multiple Choice

What is the purpose of colour depth in digital images?

• To determine the resolution of an image

• To define the number of colors in an image

• To enhance image brightness

• To compress image size

Multiple Select

A 9-hole golf course is introducing an app to replace paper scorecards. The total

score is the number of times the player hits the ball to complete all 9 holes.

The app uses the shown bit-mapped graphic.

Choose two statements about how a bit-mapped graphic is represented in a computer system’s

memory.(Choose two)

• stores data about each pixel

• stores binary representing RGB colour value

• stores data about each object

• stores lists of attributes and values

• stores number of pixels in image

Multiple Choice

What is the maximum number of possible colours represented by 8 bits per pixel?

• 128

• 64

• 256

• 32

Multiple Choice

What determines the maximum number of colors that can be displayed in a bitmap image?

• The file format (e.g., JPEG, PNG)

• The size of the image file

• The color depth of the image

• The resolution of the image

Multiple Choice

What does "colour depth" in a bitmap image indicate?

• The number of pixels in the image

• The number of bits used to represent each colour

• The physical size of the image

• The type of compression used

Multiple Choice

What are the binary representations for the colours in a 2-bit graphic?

• White, Light grey, Dark grey, Black

• Red, Green, Blue, Yellow

• Cyan, Magenta, Yellow, Black

• Pink, Orange, Purple, Brown

Multiple Choice

What does image resolution refer to?

• The number of pixels per inch (PPI) in an image

• The file size of the image

• The dimensions of the image in centimeters

• The color depth of the image

Multiple Choice

What happens to a bitmap image when it is scaled up significantly?

• It becomes sharper

• It loses quality and becomes pixelated

• Its file size decreases

• It automatically converts to a vector image

Multiple Choice

What is the difference in color display capabilities between the original Nintendo Gameboy and modern devices?

• The Gameboy can display 4 colors, while modern devices can display 16,777,216 colors.

• The Gameboy can display 16,777,216 colors, while modern devices can display 4 colors.

• Both can display the same number of colors.

• The Gameboy has no color display capabilities.

Multiple Choice

Colour depth is the number of binary digits (bits) required to store the colours in an image. Each colour has a unique binary value.

What is the colour depth of this image

• 2 colours

• 4 colours

• 64 colours

• 3 colours

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident