Vocabulary
The fundamental unit of a digital image
What is a pixel
"A" in hexadecimal is this in binary
What is 1010
1110 in binary is this in hexadecimal
What is E
Roughly 1,000 Gigabytes
What is a Terabyte
This compression method use inexact approximations and discards some data to represent the content
What is lossy compression
A type of data used for graphics or pictures
What is an image
"1D" in hexadecimal is this in binary
What is 0001 1101
0101 0010 in binary is this in hexadecimal
What is 52
List these in order of the greatest file size to the lowest: megabyte, petabyte, kilobyte, exabyte
What is exabyte, petabyte, megabyte, and kilobyte
Compression is important because __________ ___________ (2 words) is limited and you'd always prefer to use fewer bits if you could
What is storage space
A data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data.
What is lossless compression
"83" in hexadecimal is this in binary
What is 1000 0011
1011 0111 in binary is this in hexadecimal
What is B7
What is 1,000,000
This measures how many pixels are on a scene
What is resolution
A digital image may include this to describe the size of the image, number of colors, or resolution.
What is metadata
"AB4" in hexadecimal is this in binary
What is 1010 1011 0100
0001 0111 1111 in binary is this in hexadecimal
What is 17F
1000 kilobytes = _____ gigabyte
What is 0.001
This is the number of different intensities that can be found per color channel when working with RGB
What is 256
A problem solving approach (algorithm) to find a satisfactory solution where finding an optimal or exact solution is impractical or impossible.
What is a heuristic approach
"BDF5" in hexadecimal is this in binary
What is 1011 1101 1111 0101
1011 0110 1110 in binary is this in hexadecimal
What is B6E
Chandler has 800 MB of data in the form of MS Word documents. Ross has 100,000 KB of data from pictures taken of his time with Rachel. Joey has 1700 MB of data in the form of downloaded songs. How much are they over/under on Monica's 2 GB thumb drive? Answer requires the word "over" or "under" as well as the amount over/under.
Over by 600 MB
How many bytes are required to encode an image that is 50 pixels wide and 75 pixels tall, if you encode each pixel with 3 bytes of RGB data AND 3 bytes of metadata.
What is 11,253