1. Design a 220×220 black image with a 30×30 centered white square and then find its Fourier Transform 2. Rotate the rectangle in image 30 and find its Fourier Transform 3. Translate the rectangle in image to another location and find its Fourier Transform 4. Scale the rectangle in image into 40×40 and find its Fourier Transform 5. Display all the images above as in video using subplot

1. Design a 220×220 black image with a 30×30 centered white square and then find its Fourier Transform 2. Rotate the rectangle in image 30 and find its Fourier Transform 3. Translate the rectangle in image to another location and find its Fourier Transform 4. Scale the rectangle in image into 40×40 and find its Fourier Transform 5. Display all the images above as in video using subplot

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Matlab

Answer the questions if you are 100% sure of the solution.

1. Design a 220×220 black image with a 30×30 centered white square and then
find its Fourier Transform
2. Rotate the rectangle in image 30 and find its Fourier Transform
3. Translate the rectangle in image to another location and find its Fourier
Transform
4. Scale the rectangle in image into 40×40 and find its Fourier Transform
5. Display all the images above as in video using subplot
Task 2:
Write a Matlab code to read 'eight.tif' image and to do the following:
a.
Add 'gaussian' noise into the image with 0 mean and 0.005 variance and
save it in a noisy_img.
Apply a 5 x 5 average filter with replicate border into the noisy img, and
display the result.
b.
C.
Apply a Gaussian low-pass filter on the noisy img with D0=42 and D0=25
and display the results

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Step 1: Introduction to Matlab:

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Step 2: Design and Transformations:

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