% 读入图像并转换为灰度图 img = imread('image.jpg'); img_gray = rgb2gray(img); % 二值化图像,黑色为0,白色为1 threshold = graythresh(img_gray); img_bw = im2bw(img_gray, threshold); % 去除小的噪点 img_bw = bwareaopen(img_bw, 10); % 检测圆形 se = strel('disk', 5); img_closed = imclose(img_bw, se); [centers, radii, metric] = imfindcircles(img_closed, [10 30]); % 绘制检测到的圆形 imshow(img); viscircles(centers, radii, 'EdgeColor', 'b'); % 输出圆形的个数 disp(['圆形的个数为:', num2str(length(centers))]);优化上述代码,使得代码能够识别多个相连在一起的不具有单个完整圆外形的多个小圆形数量并加入到输出中
时间: 2024-01-20 10:03:45 浏览: 95
以下是优化后的代码:
```matlab
% 读入图像并转换为灰度图
img = imread('image.jpg');
img_gray = rgb2gray(img);
% 二值化图像,黑色为0,白色为1
threshold = graythresh(img_gray);
img_bw = im2bw(img_gray, threshold);
% 去除小的噪点
img_bw = bwareaopen(img_bw, 10);
% 检测圆形
se = strel('disk', 5);
img_closed = imclose(img_bw, se);
[centers, radii, metric] = imfindcircles(img_closed, [10 30]);
% 找到相邻的圆形
num_circles = length(centers);
neighbor_indices = cell(num_circles, 1); % 存储每个圆形的相邻圆形的索引
for i = 1:num_circles
for j = i+1:num_circles
distance = norm(centers(i,:) - centers(j,:));
if distance <= radii(i) + radii(j) + 10 % 尝试加上一些额外的距离容差
neighbor_indices{i} = [neighbor_indices{i}, j];
neighbor_indices{j} = [neighbor_indices{j}, i];
end
end
end
% 将相邻的圆形合并为一个
visited = zeros(num_circles, 1);
num_merged_circles = 0;
for i = 1:num_circles
if visited(i) == 0
num_merged_circles = num_merged_circles + 1;
visited(i) = 1;
queue = [i];
merged_center = centers(i,:);
merged_radius = radii(i);
while ~isempty(queue)
curr_index = queue(1);
queue(1) = [];
neighbors = neighbor_indices{curr_index};
for j = 1:length(neighbors)
neighbor_index = neighbors(j);
if visited(neighbor_index) == 0
visited(neighbor_index) = 1;
queue = [queue, neighbor_index];
merged_center = merged_center + centers(neighbor_index,:);
merged_radius = max(merged_radius, radii(neighbor_index));
end
end
end
merged_center = merged_center / length(find(visited==1));
centers(num_merged_circles,:) = merged_center;
radii(num_merged_circles) = merged_radius;
end
end
% 绘制检测到的圆形
imshow(img);
viscircles(centers(1:num_merged_circles,:), radii(1:num_merged_circles), 'EdgeColor', 'b');
% 输出圆形的个数
disp(['圆形的个数为:', num2str(num_merged_circles)]);
```
该代码将相邻的圆形合并为一个,可以处理多个相连在一起的不具有单个完整圆外形的多个小圆形数量,并将合并后的圆形数量加入到输出中。
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