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function [isepi, varargout ] = isEpipoleInImage(fundamental_matrix, imagesize)
// Find whether image contains epipole.
//
// Calling Sequence
// isepi = isEpipoleInImage(F, imagesize)
// [isepi, epipole] = isEpipoleInImage(F, imagesize)
//
// Parameters
// F : A 3 * 3 fundamental matrix computed from stereo images. It should be double or single
// imagesize : The size of the image
// isepi : Logical value true / false denoting whether the image contains epipole
// epipole : Location of the epipole. It is 1 * 2 vector.
//
// Description
// The function determines whether the image with fundamental matrix F contains the epipole or not. It also gives the position of the epipole.
//
// Examples
// F = estimateFundamentalMatrix(matchedPoints1, matchedPoints2)
// imageSize = [200 300]
// isepi = isEpipoleInImage(F, imagesize)
// [isepi, epipole] = isEpipoleInImage(F, imagesize)
//
// Authors
// Suraj Prakash
[ lhs, rhs ] = argn(0)
if lhs > 2 then
error(msprintf("Too many output arguments"));
end
/// If there is more than one output parameter
[rows cols] = size(fundamental_matrix)
if rows ~= 3 | cols ~=3 then
error(msprintf("Invalid size of fundamental matrix\n"));
end
[rows1 col2] = size(imagesize)
if rows1 ~=1 | cols ~= 2 then
error(msprintf("Invalid image size matrix\n"));
end
if lhs == 2 then
[isepi, temp ] = opencv_isEpipoleInImage(fundamental_matrix, imagesize);
varargout(1) = temp;
/// if there is only one output parameter
else
isepi = opencv_isEpipoleInImage(fundamental_matrix, imagesize);
end
endfunction
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