From this image i want to unwrap the gray part...so that i can represent this(pixel information) as a rectangle.
How to unwrap the circle?
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Umme Tania
el 9 de Oct. de 2013
Comentada: Image Analyst
el 24 de En. de 2014
3 comentarios
Walter Roberson
el 9 de Oct. de 2013
I am not sure what you mean by "unwrap" ? Are you wanting to project from the circle to a rectangle, interpolating to form a rectangular image like from stretching a sheet?
Respuesta aceptada
Alex Taylor
el 10 de Oct. de 2013
Editada: Alex Taylor
el 11 de Oct. de 2013
Use a polar transformation with the center of the transformation set to the center of the circle (roughly [161, 172]).
I like Peter Kovesi's implementation of the polar transformation:
a = imread('http://www.mathworks.com/matlabcentral/answers/uploaded_files/482/crop_image.jpg');
out = polartrans(a,500,500,161,172,'linear','valid');
imshow(out);
Más respuestas (1)
ramsha
el 24 de En. de 2014
how to run this file ?
1 comentario
Image Analyst
el 24 de En. de 2014
What file? Whatever file it is, can't you just click the green triangle? Or type the name of it into the command window?
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