Digital Media Exam 2 Raster vs. Vector
March 3 2023
What are the two types of graphics software programs?
Raster-based software
Vector-based software
Raster-based software makes images created using what?
Pixels
In Raster-based software, each pixel contains a certain amount of what?
Color information
In Raster-based software, each pixel contains information about its ________
__ _____
position in space
Which software's images are resolution-dependent? (psi - dpi).
Raster-based
Raster-based images require large amounts of what?
Hard drive space
Vector-based software makes images created using what?
Mathematical algorithms
In Vector-based software, what does each formula contain?
the color information
What does the algorithm in vector-based software generate?
pixels on the screen
Which software's images are resolution independent?
Vector-based
Which software requires the least storage space?
Vector-based
How many current types of Vector algorithms are used to display images on
the screen?
17
Of the algorithms (vector-based) used today, in which way does each one
differ?
in the type of output that are found in the image size command
What happens in the Nearest Neighbor algorithm?
The value of the output cell is determined by the nearest cell center on the input
grid.
Nearest Neighbor can be used on continuous data, but the results can be
________
, blocky
What happens in the Bilinear algorithm?
Bilinear Interpolation uses a weighted average of the four nearest cell centers
What happened in the Bicubic algorithm?
Cubic Convolution looks at the 16 nearest cell centers to the output and fits a
smooth curve through the points to find the value.
Which algorithm does photoshop like to use (Vector-based)?
Bicubic --- bicubic convolution
What resolution should printed material in color be at least? (at the image's
actual size for printing purposes)
300 dpi//ppi
What resolution should printed material at the image's actual size be for
black and white?
600 ppi
What does dpi stand for?
Dots per square inch (printing processes)
What does ppi stand for?
Pixels per square inch
dpi roughly corresponds to . . .
ppi
What resolution do screen images generally range from?
72 ppi to 218 ppi
What resolution (in bits/pixel) can M1 iMacs display?
32 bits/pixel 218 pixels per inch with support for 1 billion colors
What resolution (in pixels) can M1 iMacs display?
4480-by-2520 resolution
What resolution (in pixels/inch) can M1 iMacs display?
218 pixels/inch
Which system can support 1 billion colors?
M1 imacs
2 kinds of digital color
Additive Color
Subtractive Color
Two colors of light being "added" together to create the desired color
Additive Color
Color being perceived by the reflected light that is not "subtracted" from a
surface
Subtractive Color
What happens during the printing process because of the subtractive process
used?
March 3 2023
What are the two types of graphics software programs?
Raster-based software
Vector-based software
Raster-based software makes images created using what?
Pixels
In Raster-based software, each pixel contains a certain amount of what?
Color information
In Raster-based software, each pixel contains information about its ________
__ _____
position in space
Which software's images are resolution-dependent? (psi - dpi).
Raster-based
Raster-based images require large amounts of what?
Hard drive space
Vector-based software makes images created using what?
Mathematical algorithms
In Vector-based software, what does each formula contain?
the color information
What does the algorithm in vector-based software generate?
pixels on the screen
Which software's images are resolution independent?
Vector-based
Which software requires the least storage space?
Vector-based
How many current types of Vector algorithms are used to display images on
the screen?
17
Of the algorithms (vector-based) used today, in which way does each one
differ?
in the type of output that are found in the image size command
What happens in the Nearest Neighbor algorithm?
The value of the output cell is determined by the nearest cell center on the input
grid.
Nearest Neighbor can be used on continuous data, but the results can be
________
, blocky
What happens in the Bilinear algorithm?
Bilinear Interpolation uses a weighted average of the four nearest cell centers
What happened in the Bicubic algorithm?
Cubic Convolution looks at the 16 nearest cell centers to the output and fits a
smooth curve through the points to find the value.
Which algorithm does photoshop like to use (Vector-based)?
Bicubic --- bicubic convolution
What resolution should printed material in color be at least? (at the image's
actual size for printing purposes)
300 dpi//ppi
What resolution should printed material at the image's actual size be for
black and white?
600 ppi
What does dpi stand for?
Dots per square inch (printing processes)
What does ppi stand for?
Pixels per square inch
dpi roughly corresponds to . . .
ppi
What resolution do screen images generally range from?
72 ppi to 218 ppi
What resolution (in bits/pixel) can M1 iMacs display?
32 bits/pixel 218 pixels per inch with support for 1 billion colors
What resolution (in pixels) can M1 iMacs display?
4480-by-2520 resolution
What resolution (in pixels/inch) can M1 iMacs display?
218 pixels/inch
Which system can support 1 billion colors?
M1 imacs
2 kinds of digital color
Additive Color
Subtractive Color
Two colors of light being "added" together to create the desired color
Additive Color
Color being perceived by the reflected light that is not "subtracted" from a
surface
Subtractive Color
What happens during the printing process because of the subtractive process
used?
