ITEC 2110-CHAPTER 2 TERMS

The main advantage(s) of bitmapped images over vector graphics is (are) _____. A. scalability or resolution independence of images B. ease of editing the image content pixel by pixel C. more compact file size compared to vector graphics

B. ease of editing the image content pixel by pixel The main advantage(s) of bitmapped images over vector graphics is--ease of editing the image content pixel by pixel

What is the color mixing method for the CMY color model? A. additive B. subtractive

B. subtractive Subtractive is the color mixing method for the CMY color model

Name the 5 file extensions of vector graphic files?

FLA EPS WMF SWF AI

A digital image captured at a higher bit depth _____ than it would have if it had been captured at a lower bit depth. A. captures more details B. has more different colors C. has a larger file size D. has larger pixel dimensions E. uses a higher sampling rate

B and C A digital image captured at a higher bit depth --has more different colors, has a larger file size-- than it would have if it had been captured at a lower bit depth.

The process of converting from analog to digital information is a two-step process—sampling and quantizing. In the quantization step, to convert an analog image to a digital image, _____. A. a two-dimensional grid is applied on the image and each tiny cell on the grid is converted into a pixel B. a two-dimensional grid is applied on the image to apply dithering to the image C. an infinite number of color shades and tones in an analog image is mapped to a finite set of discrete color values D. the resulting digital image file is compressed to have a smaller file size

C. an infinite number of color shades and tones in an analog image is mapped to a finite set of discrete color values The process of converting from analog to digital information is a two-step process—sampling and quantizing. In the quantization step, to convert an analog image to a digital image, An infinite number of color shades and tones in an analog image is mapped to a finite set of discrete color values

Give one example of the image file type that supports lossy compression and one that supports lossless compression

Lossy: JPEG Lossless: PNG, GIF, PSD, TIF

Generally speaking, how does the file size change if the number of pixels of both the width and height of an image are doubled?

The file size increases by 4 times.

The term pixel is contracted from the words _____ and _____.

picture and element The term pixel is contracted from the words PICTURE and ELEMENT.

What are the theoretical CMY values for (i) white (ii) black (iii) red (iv) green (v) blue (vi) cyan (vii) magenta (viii) yellow

(i) white 0%, 0%, 0% (ii) black 100%, 100%, 100% (iii) red 0%, 100%, 100% (iv) green 100%, 0%, 100% (v) blue 100%, 100%, 0% (vi) cyan 100%, 0%, 0% (vii) magenta 0%, 100%, 0% (viii) yellow 0%, 0%, 100%

What are the HSB values for (i) white (ii) black (iii) red 0, 100%, 100% (iv) green (v) blue (vi) cyan (vii) magenta (viii) yellow

(i) white= hue does not matter =0%, 100% (ii) black= hue does not matter, saturation does not matter,=0% (iii) red= 0, 100%, 100% (iv) green= 120, 100%, 100% (v) blue= 240, 100%, 100% (vi) cyan= 180, 100%, 100% (vii) magenta= 300, 100%, 100% (viii) yellow= 60, 100%, 100%

For the 24-bit color depth, what are the RGB values for (i) white (ii) black (iii) red (iv) green (v) blue (vi) cyan (vii) magenta (viii) yellow

(i) white=255, 255, 255 (ii) black=0, 0, 0 (iii) red=255, 0, 0 (iv) green=0, 255, 0 (v) blue=0, 0, 255 (vi) cyan=0, 255, 255 (vii) magenta=255, 0, 255 (viii) yellow=255, 255, 0

An 1-bit color depth allows _____ colors.

2 An 1-bit color depth allows 2 colors.

A 24-bit color depth allows _____ colors.

2^24 A 24-bit color depth allows 2^24 colors

An 8-bit color depth allows _____ colors.

2^8 or 256 An 8-bit color depth allows _____ colors.

The main advantage(s) of vector graphics over bitmapped images is (are) _____. *more than 1 correct answer A. scalability or resolution independence of images B. ease of editing the image content pixel by pixel C. more compact file size compared to bitmapped images

A and C The main advantage(s) of vector graphics over bitmapped images are-- scalability or resolution independence of images and more compact file size compared to bitmapped images.

A digital image captured at a higher resolution _____ than it would have if it had been captured at a lower resolution. *more than one correct answer A. captures more details B. has more different colors C. has a higher bit depth D. has a larger file size E. has larger pixel dimensions F. uses a higher sampling rate

A, D, E, and F A digital image captured at a higher resolution--captures more details, has a larger file size, has larger pixel dimensions, and uses a higher sampling rate --than it would have if it had been captured at a lower resolution.

Which of the following color models takes the form of a color cube? A. RGB B. CMY C. HSB D. CIE XYZ

A. RGB RGB takes the form of a color cube

What is the color mixing method for the RGB color model? A. additive B. subtractive

A. additive Additive is the color mixing method for the RGB color model

Which of the primaries in the HSB color model takes the form of a color wheel? A. hue B. saturation C. brightness

A. hue Hue takes the form of a color wheel.

Bitmapped images are composed of ______. A. individual pixels, which represent spatial samples of the image or scene B. mathematical descriptions of image elements, which include points, lines, curves, and shapes

A. individual pixels, which represent spatial samples of the image or scene Bitmapped images are composed of individual pixels, which represent spatial samples of the image or scene

Vector graphics are composed of _____. A. individual pixels, which represent spatial samples of the image or scene B. mathematical descriptions of image elements, which include points, lines, curves, and shapes

B. mathematical descriptions of image elements, which include points, lines, curves, and shapes Vector graphics are composed of mathematical descriptions of image elements, which include points, lines, curves, and shapes.

The process of converting from analog to digital information is a two-step process—sampling and quantizing. In converting an analog image to a digital image, the sampling rate affects _____. A. the bit depth of the resulting digital image B. the pixel dimensions of the resulting digital image

B. the pixel dimensions of the resulting digital image

Name the 7 file extensions of pixel-based files?

BMP JPEG PNG GIF JPG PSD TIFF

Which of the following factors will increase the file size of a digital image? A. larger pixel dimensions of the image B. higher color depth

BOTH- A and B Larger pixel dimensions of the image and higher color depth will increase the file size of a digital image.

Which of the following color models takes the form of a hexacone? A. RGB B. CMY C. HSB D. CIE XYZ

C. HSB HSB takes the form of a hexacone

True/False : An 1-bit color depth allows only black and white colors.

False

Generally speaking, how does the file size change if the bit depth of an image is increased from 8 bits to 16 bits?

The file size doubles.

Generally speaking, how does the file size change if the total number of pixels of an image is doubled?

The file size doubles.

Generally speaking, how does the file size change if the bit depth of an image is increased from 8 bits to 24 bits?

The file size increases by 3 times.

Why don't the colors in a printed image look exactly the same as those you see on the computer screen?

The printer and the computer display have different color gamuts. Some colors that a computer display can display are out of the gamut of the printer. The out‐of‐gamut colors will be altered to fit within the printer's gamut.

True/False : A pixel is a point sample, not a little square.

True

Sometimes when you magnify a picture on your computer screen, lines that should be straight lines appear to be jagged. This effect is called _____.

aliasing Sometimes when you magnify a picture on your computer screen, lines that should be straight lines appear to be jagged. This effect is called ALIASING.

What are the primary colors in the CMY color model?

cyan, magenta, and yellow

What is the primary use of the CMYK color model?

printing Printing is the primary use of the CMYK color model

What are the primary colors in the RGB color model?

red, green, and blue

What are the primaries in the HSB color model?

hue, saturation, and brightness