You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: ihough.m
    path of file: ./repos/machinevision-toolbox-matlab
    
    the code of the file until where you have to start completion: %IHOUGH	Hough transform
%
%	params = IHOUGH
%	H = IHOUGH(IM)
%	H = IHOUGH(IM, params)
%
%	Compute the Hough transform of the image IM data.
%
%	The appropriate Hough accumulator cell is incremented by the
%
    
function H = ihough(IM, params)

	% process arguments
	%  the param structure is common to ihough()
	if nargin < 2,
		default.Nd = 64;
		default.Nth = 64;
		default.edgeThresh = 0.10;
		default.border = 8;

		% for houghpeaks
		default.houghThresh = 0.40;
		default.radius = 5;
		default.interpWidth = 5;
	end