Section 4: Data Rep - Storing Images Flashcards
1
Q
Colour Depth
A
Number of bits used for each pixel
2
Q
Formula for how many colours there are in an image
A
Total number of colors = 2**n (n = number of bits per pixel)
3
Q
Image size
A
Number of pixels in the image (width x height)
4
Q
Formula for how many bits an image will take up
A
File size (bits) = image size x colour depth
5
Q
describe what a pixel is
A
Smallest element in an image (short for picture element)
6
Q
8 bit colordepth
A
grey scale image using 256 colors
7
Q
bits used
A
number of pixels * color depth
8
Q
num of pixels
A
length x width
9
Q
A
