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Analog vs Digital Image Data Quiz

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Questions and Answers

What is the main difference between analog and digital images?

Analog images are continuous while digital images are discrete (correct)

Analog images have infinite precision, while digital images have finite precision

Analog images are always black and white, while digital images can be colored

Analog images are stored in a matrix, while digital images are not

How is a digital image represented?

As a single pixel

As a set of analog values

As a continuous signal with infinite precision

As a matrix of discrete samples (correct)

What is the purpose of integrating and sampling analog data in a spatial domain to obtain a digital image?

To create an infinite range of pixel values

To represent the continuous image as discrete samples (correct)

To convert digital images to analog images

To increase the precision of the image

What type of domain and range does an analog signal have?

<p>Continuous domain and range</p> Signup and view all the answers

Why do we need to store digital image numbers with finite precision when using a computer?

<p>To manipulate signals by using computer</p> Signup and view all the answers

Study Notes

Analog vs Digital Images

Analog images are continuous signals, whereas digital images are discrete representations of images
Analog images have infinite detail, whereas digital images have finite detail

Digital Image Representation

A digital image is represented as a matrix of pixels, with each pixel having a specific intensity value
Each pixel is assigned a digital value, which is a finite representation of the analog intensity value

Analog to Digital Conversion

Integrating and sampling analog data in a spatial domain allows us to obtain a digital image
This process converts continuous analog data into discrete digital values

Analog Signal Characteristics

An analog signal has a continuous domain (time) and a continuous range (amplitude)

Digital Image Storage

Digital image numbers are stored with finite precision in a computer due to memory constraints
Finite precision is necessary to store and process digital images efficiently

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Description

Test your knowledge of the differences between analog and digital image data with this quiz. Explore concepts such as pixels, brightness, and color representation in images, and learn about common imaging technologies like CAT and MRI scans.