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Topic: How to calculate the angle between two images?
Replies: 41   Last Post: Dec 8, 2012 11:02 PM

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khoo

Posts: 63
Registered: 8/9/08
Re: How to calculate the angle between two images?
Posted: Apr 6, 2009 11:14 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

> > Bro Dave, when i rotate the images, i don't think the actual image boundaries will rotate...ABout the other spikes bear, i no sure about it but how to set the zero degree spike to zero??
>
> im8(0) = 0;
>
> Maybe
>
> Regards
>
> Dave Robinson


Bro Dave, i know i wrong where ady..this is my update code...

clear all;clc
im1=imread('image1.jpg');
im11=rgb2gray(im1);
im111=im2double(im11);
[dx,dy]=gradient(im111);
p1=atan2(dy,dx);
im1111=edge(p1,'canny');
bw1 = bwmorph(im1111,'dilate');
im11111=p1.*bw1;
im6=hist(im11111(:),256);
im66=fft(im6);

im2=imread('image2.jpg');
im22=rgb2gray(im2);
im222=im2double(im22);
im333=zeros(size(im111));
im333(1:size(im2,1),1:size(im2,2))=im222;
[dx,dy]=gradient(im333);
p2=atan2(dy,dx);
im2222=edge(p2,'canny');
bw2 = bwmorph(im2222,'dilate');
im22222=p2.*bw2;
im7=hist(im22222(:),256);
im77=conj(fft(im7));
im8=real(ifft(im66.*im77));
im8(1)=0;
plot(im8)

by the way, how to get the get the peak by checking the graph?? izit the peak there state the relative rotation angle for two image?? and how to convert the radian to degree??


Date Subject Author
4/3/09
Read How to calculate the angle between two images?
khoo
4/3/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/3/09
Read Re: How to calculate the angle between two images?
khoo
4/3/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/3/09
Read Re: How to calculate the angle between two images?
khoo
4/3/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/3/09
Read Re: How to calculate the angle between two images?
khoo
4/3/09
Read Re: How to calculate the angle between two images?
khoo
4/4/09
Read Re: How to calculate the angle between two images?
khoo
4/4/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/4/09
Read Re: How to calculate the angle between two images?
khoo
4/4/09
Read Re: How to calculate the angle between two images?
khoo
4/5/09
Read Re: How to calculate the angle between two images?
khoo
4/5/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/5/09
Read Re: How to calculate the angle between two images?
khoo
4/5/09
Read Re: How to calculate the angle between two images?
khoo
4/5/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/5/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/7/09
Read Re: How to calculate the angle between two images?
khoo
4/7/09
Read Re: How to calculate the angle between two images?
khoo
4/7/09
Read Re: How to calculate the angle between two images?
Dave Robinson
12/8/12
Read Re: How to calculate the angle between two images?
Jeff
4/3/09
Read Re: How to calculate the angle between two images?
Skeptic
4/3/09
Read Re: How to calculate the angle between two images?
Dave Robinson
4/3/09
Read Re: How to calculate the angle between two images?
Roger Stafford
4/3/09
Read Re: How to calculate the angle between two images?
khoo
4/3/09
Read Re: How to calculate the angle between two images?
Roger Stafford
4/3/09
Read Re: How to calculate the angle between two images?
ImageAnalyst
4/3/09
Read Re: How to calculate the angle between two images?
khoo
4/4/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
Matt
4/6/09
Read Re: How to calculate the angle between two images?
khoo
4/6/09
Read Re: How to calculate the angle between two images?
Matt

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