How to write a matlab program to implement a curved tranform to transform a grayscale image?











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How to implement the transform in matlab given in the picture to get the output image as shown?



Transform I need to code



I tried to code but failed miserably.



I = imread('lena.jpg');
I = im2double(I);
[m n] = size(I);
J = ones(256);
alpha = 10;
beta = 10;
for i = 1 : m
for j = 1 : n
Z = (((1-beta)*5 + beta*50)*sin(alpha*180));
M = (((1-alpha)*5 + alpha*5)*sin(beta*180));
x = i + Z;
y = j + M;
J(abs(round(x))+1,abs(round(y))+1) = I(i,j);
%disp(x);
end
end
imshow(J);









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  • I have no idea about what the values of alpha and beta doing here, I just tried to code it.
    – Zubair J.
    Nov 18 at 14:31















up vote
-1
down vote

favorite












How to implement the transform in matlab given in the picture to get the output image as shown?



Transform I need to code



I tried to code but failed miserably.



I = imread('lena.jpg');
I = im2double(I);
[m n] = size(I);
J = ones(256);
alpha = 10;
beta = 10;
for i = 1 : m
for j = 1 : n
Z = (((1-beta)*5 + beta*50)*sin(alpha*180));
M = (((1-alpha)*5 + alpha*5)*sin(beta*180));
x = i + Z;
y = j + M;
J(abs(round(x))+1,abs(round(y))+1) = I(i,j);
%disp(x);
end
end
imshow(J);









share|improve this question
























  • I have no idea about what the values of alpha and beta doing here, I just tried to code it.
    – Zubair J.
    Nov 18 at 14:31













up vote
-1
down vote

favorite









up vote
-1
down vote

favorite











How to implement the transform in matlab given in the picture to get the output image as shown?



Transform I need to code



I tried to code but failed miserably.



I = imread('lena.jpg');
I = im2double(I);
[m n] = size(I);
J = ones(256);
alpha = 10;
beta = 10;
for i = 1 : m
for j = 1 : n
Z = (((1-beta)*5 + beta*50)*sin(alpha*180));
M = (((1-alpha)*5 + alpha*5)*sin(beta*180));
x = i + Z;
y = j + M;
J(abs(round(x))+1,abs(round(y))+1) = I(i,j);
%disp(x);
end
end
imshow(J);









share|improve this question















How to implement the transform in matlab given in the picture to get the output image as shown?



Transform I need to code



I tried to code but failed miserably.



I = imread('lena.jpg');
I = im2double(I);
[m n] = size(I);
J = ones(256);
alpha = 10;
beta = 10;
for i = 1 : m
for j = 1 : n
Z = (((1-beta)*5 + beta*50)*sin(alpha*180));
M = (((1-alpha)*5 + alpha*5)*sin(beta*180));
x = i + Z;
y = j + M;
J(abs(round(x))+1,abs(round(y))+1) = I(i,j);
%disp(x);
end
end
imshow(J);






image matlab






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edited Nov 18 at 17:00









James Z

11.1k71735




11.1k71735










asked Nov 18 at 14:22









Zubair J.

154




154












  • I have no idea about what the values of alpha and beta doing here, I just tried to code it.
    – Zubair J.
    Nov 18 at 14:31


















  • I have no idea about what the values of alpha and beta doing here, I just tried to code it.
    – Zubair J.
    Nov 18 at 14:31
















I have no idea about what the values of alpha and beta doing here, I just tried to code it.
– Zubair J.
Nov 18 at 14:31




I have no idea about what the values of alpha and beta doing here, I just tried to code it.
– Zubair J.
Nov 18 at 14:31

















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