Reference no: EM132050102

1.A VGA image size is 640 pixels by 480 pixels. If there are 16 high contrast levels of gray, the number of bytes required to store this image is:

A1.2288 MB

B2.458 MB

C153 KB

D307 KB

2 In a PN photodiode, a photon absorbed in the depletion region of the junction:

A generates donors.

B generates only electrons electrons.

C generates only holes..

D generates a hole-electron pair.

3.How many bits are used for a pixel for a full RGB color image?

A 24-bit RGB color image

B 16-bit RGB color image

C 4-bit RGB color image

D 8-bit RGB color image

4.Which of the following color models are used for color display on a monitor?

A CMYK

B RBY

C RGB

D CMY

5.________ is a type of file compression that compresses images by reduction of the number of bits for high frequency changes. Therefore, each time an image is compressed, it loses quality.

A PNG

B JPEG

C ZIP

D GIF

6 Digital video is sequence of ________________.

A frames

B pixels

C bytes

D compressions

7.Information ignored by the human eye is _________________,

A.unobservable

B irrelevant information

C temporally redundant

D spatially redundant

8.A simple way to compress an image is by removing __________________.

meaningful data

superfluous data

moire pixels

alternate pixels

9.A picture size option on a digital camera is 2000 x 2800 RGB pixels. Prior to compression

with JPEG, how many bytes are stored in the memory on the camera?

A. 44.8 MB

B. 24 B

C.16.8 MB

D.134.4 MB

10.The most familiar single sensor used for image acquisition is

A. CMOSFET

B. npn phototransistor

C. pn photodiode

D .CMOS amplifier