Explain why in some image processing scenarios filters are, Ask an Expert

Engineering

QUESTION 1

(a) Explain the following terms in Digital Image Processing

I. Target-to-Source Mapping in Geometric Operations

II. Convolution

(b) Suppose you have to perform Thresholding on an Image based on a set of 3 values, 100, 180 and 200 respectively. Explain using sample codes how you would proceed in a plugin using ImageJ environment

QUESTION 2

(a) Explain why in some image processing scenarios, filters are used instead of point operations on pixel values

(b) Show with diagrams how the Median Filters work

QUESTION 3

(a) Write down the following

(i) A filter for the Prewitt Operator

(ii) A filter for the Sobel Operator

(iii) A function for the Sobel Gradient Function

(b) Explain how to stretch an image to its full intensity using Automatic Contrast Adjustment

(c) Unsharp masking (USM) is a technique for edge sharpening that is particularly popular in astronomy, digital printing, and many other areas of image processing. Write a Java method using ImageJ for the USM

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M9133468

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