Enviar pesquisa
Carregar
Image fft
•
Transferir como PPTX, PDF
•
0 gostou
•
480 visualizações
Amr Nasr
Seguir
Fast Fourier Transform of images
Leia menos
Leia mais
Tecnologia
Denunciar
Compartilhar
Denunciar
Compartilhar
1 de 18
Baixar agora
Recomendados
Dba matlab code
Dba matlab code
booterboot
Whitebalance
Whitebalance
Amr Nasr
Video watermarking
Video watermarking
Amr Nasr
Wavelet watermark level3
Wavelet watermark level3
Amr Nasr
Two dimensional true wavelet compression
Two dimensional true wavelet compression
Amr Nasr
Image dct shifting
Image dct shifting
Amr Nasr
Wavelet watermark level2
Wavelet watermark level2
Amr Nasr
Tcp snoop protocols
Tcp snoop protocols
Amr Nasr
Recomendados
Dba matlab code
Dba matlab code
booterboot
Whitebalance
Whitebalance
Amr Nasr
Video watermarking
Video watermarking
Amr Nasr
Wavelet watermark level3
Wavelet watermark level3
Amr Nasr
Two dimensional true wavelet compression
Two dimensional true wavelet compression
Amr Nasr
Image dct shifting
Image dct shifting
Amr Nasr
Wavelet watermark level2
Wavelet watermark level2
Amr Nasr
Tcp snoop protocols
Tcp snoop protocols
Amr Nasr
Comparison of image fusion methods
Comparison of image fusion methods
Amr Nasr
6 big google buys of 2012
6 big google buys of 2012
Amr Nasr
Scaling compression2
Scaling compression2
Amr Nasr
Compression one example
Compression one example
Amr Nasr
Video watermarking
Video watermarking
Amr Nasr
Watermark
Watermark
Amr Nasr
Wavelet
Wavelet
Amr Nasr
Digital forensics lessons
Digital forensics lessons
Amr Nasr
Crypt
Crypt
Amr Nasr
"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr Bagan
Fwdays
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Precisely
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL Certs
Rizwan Syed
How to write a Business Continuity Plan
How to write a Business Continuity Plan
Databarracks
DevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache Maven
Hervé Boutemy
Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 365
2toLead Limited
unit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptx
BkGupta21
Digital Identity is Under Attack: FIDO Paris Seminar.pptx
Digital Identity is Under Attack: FIDO Paris Seminar.pptx
LoriGlavin3
DMCC Future of Trade Web3 - Special Edition
DMCC Future of Trade Web3 - Special Edition
Dubai Multi Commodity Centre
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
BookNet Canada
DevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platforms
Sergiu Bodiu
How AI, OpenAI, and ChatGPT impact business and software.
How AI, OpenAI, and ChatGPT impact business and software.
Curtis Poe
Tampa BSides - Chef's Tour of Microsoft Security Adoption Framework (SAF)
Tampa BSides - Chef's Tour of Microsoft Security Adoption Framework (SAF)
Mark Simos
Mais conteúdo relacionado
Mais de Amr Nasr
Comparison of image fusion methods
Comparison of image fusion methods
Amr Nasr
6 big google buys of 2012
6 big google buys of 2012
Amr Nasr
Scaling compression2
Scaling compression2
Amr Nasr
Compression one example
Compression one example
Amr Nasr
Video watermarking
Video watermarking
Amr Nasr
Watermark
Watermark
Amr Nasr
Wavelet
Wavelet
Amr Nasr
Digital forensics lessons
Digital forensics lessons
Amr Nasr
Crypt
Crypt
Amr Nasr
Mais de Amr Nasr
(9)
Comparison of image fusion methods
Comparison of image fusion methods
6 big google buys of 2012
6 big google buys of 2012
Scaling compression2
Scaling compression2
Compression one example
Compression one example
Video watermarking
Video watermarking
Watermark
Watermark
Wavelet
Wavelet
Digital forensics lessons
Digital forensics lessons
Crypt
Crypt
Último
"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr Bagan
Fwdays
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Precisely
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL Certs
Rizwan Syed
How to write a Business Continuity Plan
How to write a Business Continuity Plan
Databarracks
DevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache Maven
Hervé Boutemy
Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 365
2toLead Limited
unit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptx
BkGupta21
Digital Identity is Under Attack: FIDO Paris Seminar.pptx
Digital Identity is Under Attack: FIDO Paris Seminar.pptx
LoriGlavin3
DMCC Future of Trade Web3 - Special Edition
DMCC Future of Trade Web3 - Special Edition
Dubai Multi Commodity Centre
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
BookNet Canada
DevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platforms
Sergiu Bodiu
How AI, OpenAI, and ChatGPT impact business and software.
How AI, OpenAI, and ChatGPT impact business and software.
Curtis Poe
Tampa BSides - Chef's Tour of Microsoft Security Adoption Framework (SAF)
Tampa BSides - Chef's Tour of Microsoft Security Adoption Framework (SAF)
Mark Simos
Gen AI in Business - Global Trends Report 2024.pdf
Gen AI in Business - Global Trends Report 2024.pdf
Addepto
WordPress Websites for Engineers: Elevate Your Brand
WordPress Websites for Engineers: Elevate Your Brand
gvaughan
New from BookNet Canada for 2024: Loan Stars - Tech Forum 2024
New from BookNet Canada for 2024: Loan Stars - Tech Forum 2024
BookNet Canada
Connect Wave/ connectwave Pitch Deck Presentation
Connect Wave/ connectwave Pitch Deck Presentation
Slibray Presentation
"Debugging python applications inside k8s environment", Andrii Soldatenko
"Debugging python applications inside k8s environment", Andrii Soldatenko
Fwdays
What's New in Teams Calling, Meetings and Devices March 2024
What's New in Teams Calling, Meetings and Devices March 2024
Stephanie Beckett
Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding Club
Kalema Edgar
Último
(20)
"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr Bagan
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL Certs
How to write a Business Continuity Plan
How to write a Business Continuity Plan
DevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache Maven
Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 365
unit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptx
Digital Identity is Under Attack: FIDO Paris Seminar.pptx
Digital Identity is Under Attack: FIDO Paris Seminar.pptx
DMCC Future of Trade Web3 - Special Edition
DMCC Future of Trade Web3 - Special Edition
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
DevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platforms
How AI, OpenAI, and ChatGPT impact business and software.
How AI, OpenAI, and ChatGPT impact business and software.
Tampa BSides - Chef's Tour of Microsoft Security Adoption Framework (SAF)
Tampa BSides - Chef's Tour of Microsoft Security Adoption Framework (SAF)
Gen AI in Business - Global Trends Report 2024.pdf
Gen AI in Business - Global Trends Report 2024.pdf
WordPress Websites for Engineers: Elevate Your Brand
WordPress Websites for Engineers: Elevate Your Brand
New from BookNet Canada for 2024: Loan Stars - Tech Forum 2024
New from BookNet Canada for 2024: Loan Stars - Tech Forum 2024
Connect Wave/ connectwave Pitch Deck Presentation
Connect Wave/ connectwave Pitch Deck Presentation
"Debugging python applications inside k8s environment", Andrii Soldatenko
"Debugging python applications inside k8s environment", Andrii Soldatenko
What's New in Teams Calling, Meetings and Devices March 2024
What's New in Teams Calling, Meetings and Devices March 2024
Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding Club
Image fft
1.
2.
3.
4.
5.
6.
7.
8.
•
>> I1=imread('lines1.png'); • >> imshow(I1); • >> A1=fft2(I1); • >> A2=fftshift(A1); • >> imshow(A2);
9.
fft transform for
the strip lines image
10.
Original image
11.
•
I1=imread('lines1.png'); • figure(1), imshow(I1); • A1=fft2(I1); • A2=fftshift(A1); • figure(2),imshow(A2); • • [m,n]=size(A2); • • %%%%%%%%%%%%%%%%%%%%%%%%%%%%%Here we retrieve part of the image fourier • %%%%%%%%%%%%%%%%%%%%%%%%%%%%%coefficients%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%% • %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%% • • A3=A2(0.4*m:m,0.4*n:n); • • figure(3),imshow(uint8(ifft2(A3))); • • title('Restructuring the image after removing some fourier coefficients');
12.
13.
A3=A2(0.4*m:m,0.4 *n:n); figure(3),imshow(ui nt8(abs((ifft2(A3)))) ); title('Restructuring the image after removing
some fourier coefficients');
14.
•
close all,clear all,clc • I1=imread('lines2.png'); • figure(1), imshow(I1); • A1=fft2(I1); • A2=fftshift(A1); • [m,n]=size(A2); • nn=max(max(A2)); • for i=1:m • for j=1:n • if A2(i,j)==nn • l=i • p=j • end • end • end • xx=(A2==nn); • figure(2),imshow(A2); • • [m,n]=size(A2); • • %%%%%%%%%%%%%%%%%%%%%%%%%%%%%Here we retrieve part of the image fourier • %%%%%%%%%%%%%%%%%%%%%%%%%%%%%coefficients%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% • %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% • • A3=A2(0.45*m:m,0.45*n:n); • • figure(3),imshow(uint8(abs((ifft2(A3))))); • • title('Restructuring the image after removing some fourier coefficients');
15.
16.
17.
18.
The peak is
at the center for vertical lines and horizontal lines
Baixar agora