Search Header Logo

T4 Homework 4 - Images - J277

Authored by Wayne Smith

Computers

10th - 12th Grade

Used 15+ times

T4 Homework 4 - Images - J277
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

    Content View

    Student View

6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1 - (a) Describe how a black and white image could be represented in binary

The image is created as a series of pixels, each of which can be represented by a binary digit, 1 for white and 0 for black or vice versa.

Metadata stored with the file specifies dimensions of image in pixels / resolution / number of colours so the image can be recreated from the data bytes making up the file.

The image is created as a series of nodes, each of which can be represented by a binary digit, 1 for white and 0 for black or vice versa.

Beta-data stored with the file specifies dimensions of image in pixels / resolution / number of colours so the image can be recreated from the data bytes making up the file.

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

1 (b) How many bits per pixel would be required for an image with a palette of 256 possible colours?

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

2 - State two factors that affect the file size of a bitmap image.

Colour depth / number of bits per pixel / number of colours in the image

Storage media

The OS

Dimensions of the image in pixels / resolution

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

3 - Calculate the file size of each of the following images.


a. A 256 colour icon with dimensions of 50 x 50 pixels


See the image example for help


Hint to start you off

50 x 50 pixels = 2 500, x 8 bit =

What is the answer in bytes?

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

3 - Calculate the file size of each of the following images.


b. A 16 colour icon with dimensions of 100 x 100 pixels


See the image example for help


What is the answer in bytes?

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

4 - Additional metadata data is stored alongside the binary colour values for each pixel.

Give two examples of metadata.

File name

Flux

File type

Capacitor

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?