Chapter 5: Digital Image Processing

What is a digital image composed of?

• Shapes

• Lines

• Vectors

• Pixels

What does DN stand for in digital imaging?

• Digital Number

• Digital Node

• Digital Notation

• Digital Network

Which of the following is NOT a main objective of Digital Image Processing?

• Creating 3D models

• Enhancing an image

• Visual interpretation

• Extracting pictorial information

What is the purpose of geometric correction?

• To correct distorted or un-geocoded image data

• To assess accuracy

• To enhance image brightness

• To classify image data

Which type of distortion is caused by the geometric?

• Human distortions

• Systematic distortions

• Radiometric distortions

• Atmospheric distortions

What does radiometric correction aim to minimize?

• Atmospheric noise

• Pixel density

• Geometric errors

• Color variations

What is the purpose of image enhancement?

• To alter the impact on the viewer

• To increase the information content

• To classify the image

• To correct distortions

What is the two algorithms used in unsupervised classification?

• K-Means and IsoData

• J-Means and PloData

• Type-R and Type-C

• K-Means and ISO Means

What is the primary goal of image classification?

• To enhance image resolution

• To convert image to black and white

• To categorize pixels into meaningful information

• To compress image files

What is the main advantages of supervised classification?

• User has control over selected classes

• Minimizes human error

• Classes are automatically determined

• Requires no prior knowledge