OCR Computer Science GCSE Images and Sound

Coulour Depth is

• Number of bits used to define each sample

• Number of bits used to define each section

• The number of bits used to represent each pixel

• The number of pixels used in a given area

Resolutiuon is

• Number of bits used to define each sample

• Number of bits used to define each section

• The number of bits used to represent each pixel

• The number of pixels used in a given area

Sampling is

• A measurement of the height of a soundwave

• Number of bits used to define each section of audio

• Measuring the height of a soundwave at regular intervals

• The frequency that sampling is carried out on sound.

Sample rate is

• A measurement of the height of a soundwave

• Number of bits used to define each section of audio

• Measuring the height of a soundwave at regular intervals

• The frequency that sampling is carried out on sound.

Bit Depth is

• A measurement of the height of a soundwave

• Number of bits used to define each section of audio

• Measuring the height of a soundwave at regular intervals

• The frequency that sampling is carried out on sound.

A Sample ...

• A measurement of the height of a soundwave at a given moment

• Number of bits used to define each section of audio

• Measuring the height of a soundwave at regular intervals

• The frequency that sampling is carried out on sound.

Bit depth is....

• A measurement of the height of a soundwave at a given moment

• Number of bits used to define each section of audio

• Number of bits used to define each sample

• The frequency that sampling is carried out on sound.

Effect of increasing image colour depth

• Improve overall quality of image, but also file size

• Improve overall quality of image, but not file size.

• Reduction in the quality of the image

• Reduction in the file size of the image

What would the file size be with dimensions of 1000 x 1000 pixels and with a colour depth of 8 bits

• 10,000 kb

• 8,000,000 bits

• 1,000 kb

• 1,000 bits