How to convert image from Cartesian to polar coordinate?

Dear all,

I stuck when convert image from Cartesian coordinate to Polar coordinate.

I need some help.

Could any help me some guidence ?

Thanks and Regards!

Han

[Walter Roberson]

File Exchange has a contribution for polar images

[Jenifer NG]

I used this one but it seem to be not work

https://www.mathworks.com/matlabcentral/fileexchange/17933-polar-to-from-rectangular-transform-of-images

Answer 1

[Torsten]

https://de.mathworks.com/matlabcentral/fileexchange/98114-cartesian-to-polar-image-transform

[Jenifer NG]

I try to use but it is not work for me.

im = (imread('XY_IMAGE.jpg'));
im90 = imrotate(im,-90,'bilinear')
im = double(im90)/255.0;
imP = ImToPolar(im, 1, 1, 256, 1024);
imP = imrotate(imP,-90)
subplot(2,2,1)
imshow(im90)
subplot(2,2,2)
imshow(imP)

[Torsten]

From the description, you have to call "im_cart2pol", not "ImToPolar".

But I'm no expert in Image Processing - a case for ImageAnalyst.

[Jenifer NG]

Thanks you !

I am trying to do it