## Digital Image Processing Questions and Answers – Laplacian in Frequency Domain

This set of Digital Image Processing Questions and Answers for Entrance exams focuses on “Laplacian in Frequency Domain”. 1. The expression [∂2 f(x,y)/∂x2 +∂2 f(x,y)/∂y2] is considered as _________ where f(x, y) is an input image. a) Laplacian of f(x, y) b) Gradient of f(x, y) c) All of the mentioned d) None of the … Read more

## Digital Image Processing Questions and Answers – Use of First Order Derivative for Enhancement

This set of Digital Image Processing Question Bank focuses on “Use of First Order Derivative for Enhancement”. 1. “For very large value of A, a high boost filtered image is approximately equal to the original image”. State whether the statement is true or false? a) True b) False 2. Subtracting Laplacian from an image is … Read more

## Digital Image Processing Questions and Answers – Use of Second Order Derivative for Enhancement

This set of Digital Image Processing Multiple Choice Questions & Answers (MCQs) focuses on “Use of Second Order Derivative for Enhancement”. 1. A filter is applied to an image whose response is independent of the direction of discontinuities in the image. The filter is/are ________ a) Isotropic filters b) Box filters c) Median filter d) … Read more

## Digital Image Processing Questions and Answers – Enhancement using Arithmetic Operations

This set of Digital Image Processing Multiple Choice Questions & Answers (MCQs) focuses on “Enhancement using Arithmetic Operations”. 1. Which of the following is/are more commercially successful image enhancement method in mask mode radiography, an area under medical imaging? a) Addition b) Subtraction c) Multiplication d) Division 2. The subtraction operation results in areas that … Read more

## Digital Image Processing Questions and Answers – Enhancement using Logic Operations

This set of Digital Image Processing Multiple Choice Questions & Answers (MCQs) focuses on “Enhancement using Logic Operations”. 1. Logic operations between two or more images are performed on pixel-by-pixel basis, except for one that is performed on a single image. Which one is that? a) AND b) OR c) NOT d) None of the … Read more

## Digital Image Processing Questions and Answers – Histogram Specification and Use of Histogram Statistics for Image Enhancement

This set of Digital Image Processing online quiz focuses on “Histogram Specification and Use of Histogram Statistics for Image Enhancement”. 1. The technique of Enhancement that has a specified Histogram processed image as result, is called? a) Histogram Linearization b) Histogram Equalization c) Histogram Matching d) None of the mentioned 2. In Histogram Matching r … Read more

## Digital Image Processing Questions and Answers – Histogram Equalization and Processing

This set of Digital Image Processing Multiple Choice Questions & Answers (MCQs) focuses on “Histogram Equalization and Processing”. 1. If h(rk) = nk, rk the kth gray level and nk total pixels with gray level rk, is a histogram in gray level range [0, L – 1]. Then how can we normalize a histogram? a) … Read more

## Digital Image Processing Questions and Answers – Basic Grey Level Transformation

This set of Digital Image Processing Multiple Choice Questions & Answers (MCQs) focuses on “Basic Grey Level Transformation”. 1. Using gray-level transformation, the basic function linearity deals with which of the following transformation? a) log and inverse-log transformations b) negative and identity transformations c) nth and nth root transformations d) All of the mentioned 2. … Read more

## Digital Image Processing Questions and Answers – Relationship between Pixels and Image Enhancement Basics

This set of Digital Image Processing Multiple Choice Questions & Answers (MCQs) focuses on “Relationship between Pixels and Image Enhancement Basics”. 1. A pixel p at coordinates (x, y) has neighbors whose coordinates are given by: (x+1, y), (x-1, y), (x, y+1), (x, y-1) This set of pixels is called ____________ a) 4-neighbors of p … Read more