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function Y = filter2 (B, X, SHAPE)
//Apply the 2-D FIR filter B to X.
//Calling Sequence
//Y = filter2(B, X)
//Y = filter2(B, X, SHAPE)
//Parameters
//B, X: Matrix
// SHAPE:
// 'full': pad X with zeros on all sides before filtering.
// 'same': unpadded X (default)
// 'valid': trim X after filtering so edge effects are no included.
//Description
//This function applies the 2-D FIR filter B to X. If the argument SHAPE is specified, return an array of the desired shape.
//Examples
//filter2([1,3], [4,5])
//ans =
// 19. 5.
funcprot(0);
lhs = argn(1)
rhs = argn(2)
if (rhs < 2 | rhs > 3)
error("Wrong number of input arguments.")
end
select(rhs)
case 2 then
Y=callOctave("filter2",B,X)
case 3 then
Y = callOctave("filter2",B,X,SHAPE)
end
endfunction
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