Introduction to Image Processing: A Comprehensive Guide for Beginners

Question 1

Which of the following is NOT a core concept in the representation of digital images?

Accepted Answer

Histogram

Answer

Pixel

Answer

Bit depth

Answer

Sampling rate

Question 2

Which of the following topics is **not** covered in the unit 'Introduction to Image Processing'?

Accepted Answer

Computer Graphics

Answer

Image Segmentation

Answer

Digital Image Representation

Answer

Image Enhancement

Question 3

Which of the following image enhancement techniques is most suitable for correcting uneven illumination in an image?

Accepted Answer

Histogram equalization

Answer

Gamma correction

Answer

Median filtering

Answer

Edge detection

Question 4

What image processing technique is used to identify key features within an image?

Accepted Answer

Feature extraction

Answer

Image compression

Answer

Image restoration

Question 5

Which of the following is the most common method for representing a digital image?

Accepted Answer

Matrix of pixel values

Answer

Vector of bytes

Answer

Linked list of pixels

Answer

List of tuples

Question 6

The conversion of an analog image into a digital format is known as:

Accepted Answer

Digitization

Answer

Interpolation

Answer

Quantization

Answer

Sampling

Question 7

Which of the following is NOT a characteristic of digital images?

Accepted Answer

Continuous resolution

Answer

Representation as matrices

Answer

Finite size

Answer

Discrete pixel values

Question 8

The process of reducing the number of bits used to represent each pixel in an image is called:

Accepted Answer

Quantization

Answer

Dithering

Answer

Sampling

Question 9

Which of the following is a widely used image file format?

Accepted Answer

JPEG

Answer

MP4

Answer

HTML

Answer

XML

Question 10

The primary purpose of image segmentation is:

Accepted Answer

Partitioning an image into coherent regions

Answer

Removing image noise

Answer

Enhancing image contrast

Question 11

Edge detection in image processing is used to:

Accepted Answer

Identify boundaries and abrupt changes in images

Answer

Sharpen images

Answer

Reduce image noise

Question 12

Fourier transforms are utilized in image processing primarily to:

Accepted Answer

Analyze the frequency components of images

Answer

Eliminate image noise

Answer

Increase image resolution

Question 13

The goal of image registration is to:

Accepted Answer

Align and combine multiple images

Answer

Remove image noise

Answer

Enhance image contrast

Answer

Compress images

Question 14

What is the term for the process of reducing the number of colors in a digital image?

Accepted Answer

Quantization

Answer

Dithering

Answer

Sampling

Answer

Encoding

Question 15

What is the primary purpose of sampling an analog image?

Accepted Answer

To convert it into a digital format

Answer

To improve its resolution

Answer

To enhance its contrast

Answer

To reduce its noise

Question 16

Which of the following image file formats supports lossless compression?

Accepted Answer

PNG

Answer

JPEG

Answer

GIF

Answer

BMP

Question 17

What is the key advantage of using bilinear interpolation over nearest neighbor interpolation?

Accepted Answer

Produces smoother transitions between pixels

Answer

Is faster to compute

Answer

Reduces image distortion

Answer

Increases image resolution

Question 18

Which property of a digital image can be effectively analyzed using statistical methods?

Accepted Answer

Mean

Answer

Saturation

Answer

Hue

Answer

Contrast

Question 19

What is the primary role of a histogram in image processing?

Accepted Answer

Illustrates the distribution of pixel values in an image

Answer

Enhances image features

Answer

Generates a new image

Answer

Compresses an image

Question 20

What is the main goal of image restoration?

Accepted Answer

To remove noise and distortions from an image

Answer

To compress an image

Answer

To enhance image features

Answer

To generate a new image

Question 21

Which of the following is NOT a commonly used file format for storing digital images?

Accepted Answer

TXT

Answer

TIFF

Answer

BMP

Answer

PNG

Question 22

The process of reducing the number of pixels in an image while maintaining its overall dimensions is known as:

Accepted Answer

Downsampling

Answer

Interpolation

Answer

Quantization

Answer

Upsampling

Question 23

In digital image processing, the number of bits used to represent the intensity of each pixel is referred to as the:

Accepted Answer

Bit depth

Answer

Color depth

Answer

Resolution

Answer

Quantization level

Question 24

Which of the following is an example of a spatial domain image enhancement technique?

Accepted Answer

Histogram equalization

Answer

Wavelet transform

Answer

Fourier transform

Answer

Principal component analysis

Question 25

The process of transforming an image into the frequency domain is commonly performed using the:

Accepted Answer

Fourier transform

Answer

Laplace transform

Answer

Discrete cosine transform

Answer

Hadamard transform

Question 26

Which of the following is a key advantage of using JPEG compression for digital images?

Accepted Answer

High compression ratio while maintaining reasonable image quality

Answer

Lossless compression

Answer

Wide compatibility across different platforms

Answer

Fast decoding

Question 27

In image segmentation, the process of grouping pixels with similar characteristics into distinct regions is referred to as:

Accepted Answer

Clustering

Answer

Thresholding

Answer

Edge detection

Answer

Region growing

Question 28

Which of the following is a common application of image processing in the field of medical imaging?

Accepted Answer

Disease diagnosis and treatment planning

Answer

Weather forecasting

Answer

Social media photo editing

Question 29

The standard RGB color space, used in digital image processing, consists of three primary colors:

Accepted Answer

Red, Green, Blue

Answer

Cyan, Magenta, Yellow

Answer

Hue, Saturation, Value

Answer

Luminance, Chrominance, Alpha

Question 30

Which of the following image processing operations involves converting an image into a binary image, where each pixel is assigned a value of either 0 or 1?

Accepted Answer

Thresholding

Answer

Histogram equalization

Answer

Edge detection

Answer

Image compression

Question 31

What is the process of converting an analog image into a digital format called?

Accepted Answer

Digitization

Answer

Quantization

Answer

Interpolation

Answer

Sampling

Question 32

Which image processing technique involves reducing the size of an image while preserving its proportions?

Accepted Answer

Downsampling

Answer

Zooming

Answer

Interpolation

Answer

Upsampling

Question 33

What is the primary function of the median filter in image processing?

Accepted Answer

Denoising and smoothing

Answer

Noise reduction

Answer

Contrast enhancement

Answer

Edge detection

Question 34

What is the main purpose of applying the Laplace operator in image processing?

Accepted Answer

Edge detection

Answer

Contrast enhancement

Answer

Image sharpening

Answer

Noise reduction

Question 35

Which technique is used to extract numerical attributes from an image?

Accepted Answer

Feature extraction

Answer

Image segmentation

Answer

Object detection

Answer

Image classification

Question 36

What is the main goal of image segmentation?

Accepted Answer

Dividing an image into distinct regions

Answer

Detecting objects in an image

Answer

Improving image contrast

Answer

Removing noise from an image

Question 37

Which of the following is a key application of image processing in computer vision?

Accepted Answer

Object recognition

Answer

Data compression

Answer

Financial modeling

Answer

Statistical analysis

Question 38

What is the process called when an analog image is transformed into a digital representation?

Accepted Answer

Digitization

Answer

Quantization

Answer

Compression

Answer

Sampling

Question 39

Which image processing method aims to reduce the file size of an image by removing redundant information?

Accepted Answer

Compression

Answer

Sampling

Answer

Quantization

Answer

Digitization

Question 40

What is the process called that reduces the number of distinct colors used in an image?

Accepted Answer

Quantization

Answer

Compression

Answer

Digitization

Answer

Sampling

Question 41

What is the smallest unit of an image, representing a single point with a specific color value?

Accepted Answer

Pixel

Answer

Sample

Answer

Bit

Answer

Byte

Question 42

Which file format is widely used for storing images with lossy compression, offering a balance between quality and file size?

Accepted Answer

JPEG

Answer

TIFF

Answer

RAW

Answer

BMP

Question 43

Which color space represents images using three primary colors (red, green, blue) to define each pixel?

Accepted Answer

RGB

Answer

YCbCr

Answer

HSV

Answer

CMY

Question 44

Which type of image processing operations directly alters the individual pixel values of an image?

Accepted Answer

Point processing

Answer

Morphological operation

Answer

Geometric transformation

Answer

Segmentation

Question 45

What is the primary goal of applying histogram equalization to an image?

Accepted Answer

Enhancing contrast

Answer

Sharpening edges

Answer

Reducing noise

Answer

Removing artifacts

Question 46

Which image processing technique focuses on dividing an image into meaningful regions, typically based on color, texture, or boundaries?

Accepted Answer

Segmentation

Answer

Clustering

Answer

Classification

Answer

Tracking

Question 47

Which of the following is NOT a primary component of a digital image processing system?

Accepted Answer

Scanner

Answer

Processing

Answer

Input

Answer

Output

Question 48

The process of converting an analog image into a digital image is called:

Accepted Answer

Digitization

Answer

Sampling

Answer

Reconstruction

Answer

Quantization

Question 49

The term for the number of pixels per unit length in an image is:

Accepted Answer

Resolution

Answer

File format

Answer

Contrast

Answer

Bit depth

Question 50

Which of the following color models represents colors as a combination of red, green, and blue?

Accepted Answer

RGB

Answer

YUV

Answer

CMYK

Answer

HSV

Question 51

The process of reducing the number of colors in an image is known as:

Accepted Answer

Quantization

Answer

Compression

Answer

Dithering

Answer

Posterization

Question 52

Which of the following is a primary application of digital image processing in the medical field?

Accepted Answer

Disease diagnosis

Answer

Image compression

Answer

Image restoration

Answer

Image enhancement

Question 53

The process of eliminating noise from an image is commonly referred to as:

Accepted Answer

Image restoration

Answer

Image enhancement

Answer

Image segmentation

Answer

Image compression

Question 54

JPEG is an example of a:

Accepted Answer

Lossy image compression technique

Answer

Lossless image compression technique

Answer

Vector graphics format

Answer

Bitmapped image format

Question 55

The process of partitioning an image into regions with similar properties is known as:

Accepted Answer

Image segmentation

Answer

Image enhancement

Answer

Image classification

Answer

Image recognition