iGCSE Computer Science: Digital Image Representation

iGCSE Computer Science: Digital Image Representation

9th - 12th Grade

12 Qs

quiz-placeholder

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iGCSE Computer Science: Digital Image Representation

iGCSE Computer Science: Digital Image Representation

Assessment

Quiz

Computers

9th - 12th Grade

Hard

Created by

Calum Gordon

Used 506+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Pixels get their colour from a combination of which colours?

cyan magenta yellow black

red green blue

primary colours

black white

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

Which factors affect the file size of a bitmap image? (select all that apply)

pixel density

image dimensions

colour depth

software used to create it

format of image meta-data

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

If an image has a colour depth of 8 bits then the number of possible colour shades is ... ?

256

8

16

2014

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

If an image has a colour depth of 65,536 colours, then the number of bits used to represent each pixel is ...

64

10

8

16

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The True Color bitmap standard uses 24 bits to represent every pixel. How many possible colour shades does this allow?

16,777,216

65,536

24

48

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of these image file formats involves lossy compression?

.gif

.png

.jpg

.bmp

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

Which of these image file formats involves lossless compression? (select all that apply)

.gif

.png

.jpg

.bmp

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