1.2 Multimedia Cambridge iAS 9618

What does each pixel in a bitmap image represent?

• A single point of colour
• A mathematical equation
• A vector path
• A compressed data block

What is the purpose of a file header in a bitmap image?

• To store metadata about the image
• To increase the resolution
• To reduce the file size
• To apply a filter to the image

What does image resolution refer to?

• The number of pixels in an image
• The amount of compression applied to an image
• The number of colors an image can display
• The size of an image file

What happens when the color depth of a bitmap image is increased?

• More colors can be represented
• The image resolution decreases
• The number of pixels reduces
• The file size remains the same

How is the file size of a bitmap image estimated?

• Image width × Image height × Color depth
• Image resolution ÷ Color depth
• Image width × Color depth
• File header size × Number of pixels

Increasing the resolution of a bitmap image results in:

• A larger file size and better image quality
• A smaller file size and lower image quality
• A more compressed image
• Reduced color depth

How is a vector graphic different from a bitmap image?

• It is composed of mathematical shapes rather than individual pixels
• It is always smaller in file size than a bitmap
• It cannot be resized without losing quality
• It contains a file header with pixel data

What is the term for an individual shape in a vector graphic?

• Drawing object
• Pixel cluster
• Raster segment
• Shading point

What is a key advantage of vector graphics over bitmap images?

• They can be resized without losing quality
• They use less memory in all cases
• They are better for storing photographs
• They require higher resolutions to display

What information is stored in a drawing list of a vector graphic?

• The properties of each object in the image
• The pixel values of each colour
• The screen resolution
• The compressed data of the image