centralmoment.m

来自「这是用matlab编写的有关图像识别分类方法的源代码」· M 代码 · 共 27 行

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 %%       Prof. Sclaroff's CS585 Image avd Video Processing       %%
%%                         Project  ONE                            %%
%%           C H A R A C T E R   R E C O G N I T I O N             %%
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%%                    by Stanislav Rost                    %%
 %%                       ID:  31764117                           %%
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function result = centralmoment(j, k, matrix, width, height)
% CENTRALMOMENT.M
%
% Returns the value for the (j,k)- th central moment of matrix "matrix"

result = 0;

[ xcen, ycen ] = gravcenters(matrix, width, height);
for y = 1:height,
	for x = 1:width,
		if matrix(y,x) == 1
			result = result + (x - xcen)^j*(y - ycen)^k;
		end
	end
end