Pearson 1CP2 - 2.2 - Image Representation

A bitmap is a digital image composed of a matrix of tiny blocks of colour

called...

• pixels
• dots
• squares
• circles

What do we call a digital image composed of a matrix of tiny blocks of colour

called picture elements or pixels?

• Vector

• CAD

• Bitmap

• Square Matrix

Every pixel on a computer screen is made from...

• combination of yellow, green, and blue values
• combination of red, orange, and blue values
• combination of black, white, and grey values
• combination of red, green, and blue values

The size of an image (in pixels) is calculated by...

• subtracting the width and height of the image
• adding the width and height of the image
• multiplying the width and height of the image
• dividing the width and height of the image

The resolution of an image means...

• The size of the image file
• The color balance of the image
• The number of pixels in the image
• The number of pixels displayed per inch

The colour depth of an image means...

• The size of the image in pixels
• The speed at which the image is displayed
• The number of colors in the image
• The number of bits used to represent the color of a single pixel in an image.

An image with a colour depth of 2 is able to display...

• 4 different colours
• 256 different colours
• 16 different colours
• 8 different colours

An image with a colour depth of 3 is able to display...

• 8 different colours
• 2 different colours
• 4 different colours
• 16 different colours

An image with a colour depth of 4 is able to display...

• 16 different colors
• 8 different colors
• 64 different colors
• 256 different colors

An image with a colour depth of 8 is able to display...

• 128 different colors
• 256 different colors
• 64 different colors
• 16 different colors