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Fundamentals of DIP

Total questions: 25

Worksheet time: 4mins

Name
Class
Date
1.
What is a pixel?
a)
Tiny squares of colour on a screen.
b)
A fairy like creature that lives in a forest.
c)
A whole picture.
d)
A binary code.
2.
Which of the following is an image file format?
a)
.ppt
b)
.avi
c)
.gif
d)
.mpg
3.
What is resolution?
a)
It is the total number of pixels in an image
b)
It is a measure of how many pixels are used in a given area
c)
It is a measure of how much an image has been compressed
d)
It is a measure of how big an object is
4.
What does 'dpi' mean?
a)
The number of colours supported by the image format
b)
The number of dots that can be plotted each second on a screen or printer
c)
The number of digits per item
d)
The number of dots used per horizontal inch in the image
5.

Typically, a .jpg file will be a larger file than a .txt file

a)

True

b)

False

6.

Black and white pixels of image are represented in matrix as

a)

1 and 2

b)

0 and 1

c)

0 and 2

d)

0 and -1

7.
A bitmap image is made up of
a)
Pixels
b)
Colours
c)
Sounds
d)
Samples
e)
Characters
8.
The number of pixels per inch in an image is known as the
a)
Dimensions
b)
Colour depth
c)
Resolution
d)
Megapixels
9.
Increasing the resolution of an image means that
a)
More pixels will be used to make up the image
b)
More colours will be used to make up the image
c)
The image size will be bigger
10.
Which of the following file types will use lossy compression to reduce the size of the image file?
a)
JPEG (JPG)
b)
BMP (Bitmap)
c)
MP3
d)
MPEG
11.
What happens the further you zoom in on a picture?
a)
The less pixels you can see.
b)
The pixels are easier to see.
c)
The pixels jump.
d)
The pixels swap places.
12.

Typically, a .jpg file will be a larger file than a .txt file

a)

True

b)

False

13.

Identify the common file formats for raster images:

a)

.html, .htm

b)

.svg, .eps, .xml

c)

.doc, .ppt, .xls

d)

.bmp, .jpg, .gif, .jpeg

14.
Image programs save graphics with specific extensions indicating the file format.
a)
True
b)
False
15.
Type of compression that deletes or changes some pixels while making the file size smaller.
a)
Lossless compression
b)
Lossy compression
16.
Type of compression that reduces the file size without losing any pixel information.
a)
Lossless compression
b)
Lossy compression
17.

For an image f(x,y), the amplitude at any position x,y is called(Answer all the correct options)

a)

binary level

b)

Intensity

c)

Gray level

d)

decimal level

18.

Digital imaging is done using

a)

Gamma rays

b)

X-rays

c)

UV/IR rays

d)

visible light

e)

All the above

19.
PNG is a
a)
Image format
b)
High-level programming language used to make mobile applications, or apps
c)
Coding festival
d)
Internet meme
20.
What is photo compression?
a)
Reducing a picture's file size
b)
Reducing the height of a picture
c)
Cropping a picture
d)
Making the camera smaller
21.

Image processing involves how many steps?

a)

7

b)

8

c)

13

d)

10

22.

Which of the following is the next step in image processing after compression?

a)

Representation and description

b)

Morphological processing

c)

Segmentation

d)

Wavelets

23.

Which of the following is the first and foremost step in Image Processing?

a)

Image acquisition

b)

Segmentation

c)

Image enhancement

d)

Image restoration

24.

Type your Reg No in full

4 lines
25.

Type your Full Name

4 lines

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