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DM Ch. 1 and 2
Terms in this set (80)
Which of the following is not static image?
Which of the following is not linear media?
world wide web
Which of the following cannot be represented by numbers in computer?
How many bits are there in one byte?
1 KB = _________bytes?
Which of the following is digit information?
number of students in GGC
Converting continuous information to digital data is done by
Reconstructing continuous information from sampled digital data is done by
Sampling and holding
Digitization is the process of converting analog information into digital data that computers can handle. It is a 2-step process. One is sampling and the other step is
If not enough samples are taken in the digitization process, which one of the following is correct?
Small file size
According to Nyquist rate, what sample rate would you need to use to be able to capture a frequency of 32,000 Hz?
You have a digitally sampled audio file that was sampled at 32,000 samples per second. What is the highest frequency that this sampled file can faithfully represent?
bit depth refers to
the number of allowable levels you map (or round) the sample data to
Which of the following can reduce file size of digital media?
Decrease sampling rate
If you want to encode only 8 colors, what is the minimum number of bit(s) you need?
Which of the following sizes is the largest?
Most gray-scale images use 8-bit color. This means there can be _____ possible different gray tones in the image.
What is the decimal value of the binary number 1101
What is the binary number for decimal value 55?
When counting in hexadecimal, what comes after F9?
When counting in binary, what comes after 1101?
What is the value in decimal for hex number 2C?
What is the value in hex for given decimal value 200?
What is the binary form for hex value E2?
What is the hex form for binary value 1110 0101 1101 1011 ?
How many things can you count with 4 hex digits?
How many things can you count with 4 decimal digits?
How many things can you count with 4 binary digits?
How many characters can the ASCII code encode?
How many characters can the Unicode encode?
There are 10,000 characters in a text document that uses ASCII code to represent text characters. What is the file size of the text document?
There are 10,000 characters in a text document that uses Unicode to represent text characters. What is the file size of the text document?
Which of the following is not an example of lossy compression?
Data will be lost or altered when you apply these strategies, except
Which of these strategies for reducing digital media size does not necessarily sacrifice the quality of the media file?
apply lossless compression
In general, if you want to keep a digital media file for further editing, you should _____.
Apply lossy compression
How big will a digital recording file be that is 1 minute 40 seconds long, sampled at 44,100 samples per second, with bit depth being 16 bits for each sample? Choose the closest one.
How many seconds will it at least take to download your 100MB file from youTube if your internet download speed is 10MbPS? Choose the closest one.
How many seconds will it at least take to load your 8.0 MB file to youTube if the upload speed of your internet connection is 2.0MbPS? Choose the closest one.
A picture has 8M pixels. If each pixel needs 4 bytes, how big is the file size to save the picture without applying compression?
Which of the following is not the same as the others
Which is not the consequences of higher image resolution?
Color in nature is
Which of the followng is not a consequence of image quantization?
Sampling rate reduced
For a color image, a bit depth of 8 allows _____ different colors.
The most common bit depth for color image is_____
Increasing the number of colors in the palette will definitely improve the image fidelity.
In the quantization step, to capture an analog image to a digital image, ___.
an infinite number of color shades and tones in an analog image is mapped to a set of discrete color values
A digital image captured at a higher resolution ___.
captures more details than the same image stored at a lower resolution
If a digital image has a higher bit depth, ___than it would have been at a lower bit depth.
it has more different colors
Rasterization means ______.
converting vector graphics into pixel-based images
Vector graphics are composed of ___.
mathematical descriptions of image elements which include points, lines, curves, and figures
Which of the following is not one of the main advantages of vector graphics over bitmapped images?
ease of editing the image content pixel by pixel
Sometimes when you magnify a picture on your computer screen, lines that should be straight lines appear to be jagged. This effect is called _____
Without applying any compression, what would be the file size for an image of 4000 X 3000 pixels in 24-bit color depth? Choose the closest one.
Which of the following images is better saved with a bit depth of 24?
Picture taken by camera
Which of the following is not a lossless compression method?
Which of the following should not be used as working files for further editing?
Generally speaking, how does the file size change if the total number of pixels of an image is doubled?
Holding a ball painted with pure blue paint you enter a room that is lit with pure red and pure green colored light. What color does the ball appear to be in this room?
Generally speaking, how does the file size change if the bit depth of an image is increased from 8-bit to 16-bit?
Which of the following file extensions indicates pixel-based files?
Which file extension indicates vector graphic files
Which of the following is the red color in RGB model?
In RGB model, what would you get if the color Red is mixed with Cyan?
Which of the following is the Magenta color in HSB model?
(300, 100%, 100%)
In RGB color model, what color would it be if the color Magenta is mixed with Black?
Which of the following is the white color in HSB model?
(0, 0%, 100%)
What is the hex form of the color (127, 12, 127) in RGB model?
In RGB model, what would it be if white is mixed with black?
In CMYK color model, what would it be if Cyan is mixed with Green?
In CMYK color model, what color would it be if Red is mixed with Blue and Green?
In CMYK color model, what color would it be if Black is mixed with White?
In CMYK color model, what color would it be if Red is mixed with Blue?
Which of the following is not correct?
RGB and CMYK Color Space encompass all the colors human can see
Which one of the following color models takes the form of a hexacone?
Which of the primaries in the HSB color model takes the form of a color wheel?
Which of the following color model uses subtractive color mixing method?
What are the CMY values for white?
What are the CMY values for red?
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