数米粒个数和每个米粒面积的matlab算法实现（递归）。

使用Matlab软件自带的rice.png图片进行处理。 不知道使用的函数利用help function-name 或者 lookfor function-name 查看

这里是实现的主要代码段

%The procedure below is to calculate the number of rice in the image
%'rice.png';
rice = imread('rice.png');
ed = edge(rice, 'canny');
fillhole = imfill(ed, 'hole');
se = strel('disk', 3);
%   erode is the processed image of 'rice.png'
erode = imopen(fillhole, se);
figure, imshow(erode);
%   imtool(erode);
%   erode_copy is the copy of erode
erode_copy = erode;
imtool(erode_copy);
%   c is the number of the rice grains
c = 0;
%   rice_arr is an array which stores the area of each rice grain
rice_arr = zeros(1, 100);
%% Calculate the number of the rice and the area of each rice grain
count = 0;
flagarr = zeros(256);
for i = 1:256
    for j = 1:256
        flag = erode_copy(j, i);
        if flag == 1
            c = c + 1;
            [rice_arr(c),erode_copy] = cal_rice_num(erode_copy, j, i, count);
        end
    end
end
disp('米粒的个数')