images (computing) 0.0 / 5 ? ComputingRepresenting dataGCSEEdexcel Created by: B3N_LAN9O5Created on: 13-06-19 17:20 Pixel The smallest representation of an image. Each pixel has their own colour. The more pixels the better the resolution. 1 of 10 Image size The size of an image is worked out by the number of pixels for the width and the height multiplied together (W * H). 2 of 10 Resolution of image The amount of pixels per inch in an image. 3 of 10 Colour depth The number of bits used the encode the colour for a pixel. The more bits the more colour the image can represent. 4 of 10 File size The size of the image file is worked out by multiplying the width, height and colour depth of the image (W * H * D). 5 of 10 Pixelated When an image is increased in size you can see individual pixels and what colours they represent. 6 of 10 Sound sampling Samples of a sound wave are taken at regular fixed intervals. A higher Sampling frequency would give a more accurate reproduction of the sound wave. 7 of 10 Hertz 1 Hertz = 1 cycles per second. Hertz are the measurement for sampling frequency. 8 of 10 Resolution of audio file The resolution is the number of bits used to encode each sample. 9 of 10 Audio file size Audio file = sample frequency * bit depth * length of recording. 10 of 10
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