Understanding Bitmap Images and Binary Representation

What is a bitmap?

• A type of vector image

• A digital image made up of a grid of pixels

• A type of audio file

• A text document format

What does a pixel represent in an image?

• A single colour

• A sound

• A paragraph of text

• A video frame

What is the formula to calculate the number of colours in a bitmap?

• n² colours where n is the number of bits

• 2ⁿ colours where n is the number of bits

• n colours where n is the number of bits

• n/2 colours where n is the number of bits

How is binary data stored in relation to bitmap images?

• As a 3D model

• In a circular pattern

• Linearly but conceptually reconstructed into a 2D grid

• As a sound wave

What is the smallest unit of an image?

• A byte

• A pixel

• A bit

• A kilobyte

What does colour depth refer to?

• The number of bits used to represent the colour of each pixel

• The number of pixels in an image

• The width of the image

• The size of the image file

What is the image size in pixels for an image 3456 pixels wide by 2592 pixels tall?

• 8,957,952 pixels

• 3,456 pixels

• 2,592 pixels

• 1,000,000 pixels

What is the difference between image size and resolution?

• Image size is the number of colours; resolution is the file size

• Image size is the total number of pixels; resolution is the number of pixels per unit of display area

• Image size is the file size; resolution is the number of colours

• Image size is the width; resolution is the height

What does metadata in a bitmap image include?

• Width and height, colour depth, and possibly encoding format

• Text content and font size

• Sound quality and duration

• Video length and frame rate

How many colours can be represented with a colour depth of 1 bit?

• 16 colours

• 8 colours

• 4 colours

• 2 colours